Eurotherm Invensys Mini8 Installation and operation manual

Engineering Manual
Mini8™
Multi-loop Controllers

© 2009 Eurotherm Limited
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specification in this document may therefore be changed without notice. The information in this
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no responsibility for any losses arising from errors in this document.

Part No HA028581 Issue 7.0 Dec-09 CN25905 1
Mini8 Controller Engineering Handbook
Mini8 controller – Multi-Loop Process Controller
1. CHAPTER 1 INSTALLATION AND OPERATION.......................................................8
1.1 What Instrument Do I Have? ................................................................................................ 8
1.2 Mini8 Controller Ordering Code ........................................................................................... 9
1.3 How to Install the Controller...............................................................................................10
1.3.1 Dimensions........................................................................................................................................................................................ 10
1.3.2 To Install the Controller................................................................................................................................................................ 10
1.3.3 Environmental Requirements ...................................................................................................................................................... 10
1.4 Electrical Connections .........................................................................................................11
1.4.1 Power Supply.................................................................................................................................................................................... 11
1.4.2 Fixed IO Connections..................................................................................................................................................................... 12
1.4.3 Digital Communications Connections....................................................................................................................................... 12
1.4.4 Configuration Port .......................................................................................................................................................................... 12
1.4.5 Modbus .............................................................................................................................................................................................. 12
1.4.6 DeviceNet / CANopen ................................................................................................................................................................... 14
1.4.7 Enhanced DeviceNet Interface.................................................................................................................................................... 15
1.4.8 Typical DeviceNet / CANopen Wiring Diagram ..................................................................................................................... 16
1.4.9 Profibus DP ....................................................................................................................................................................................... 17
1.4.10 Ethernet (Modbus TCP)........................................................................................................................................................... 18
1.4.11 Thermocouple Input TC4 and TC8 ...................................................................................................................................... 19
1.4.12 RTD / PT100 Input RT4............................................................................................................................................................ 20
1.4.13 Logic Input DI8 .......................................................................................................................................................................... 21
1.4.14 Logic Output DO8..................................................................................................................................................................... 22
1.4.15 Relay Output RL8 ...................................................................................................................................................................... 23
1.4.16 Analogue Output AO4 and AO8........................................................................................................................................... 24
1.4.17 Current Transformer input Module CT3............................................................................................................................ 25
1.5 Adding or replacing an IO module.......................................................................................26
1.6 Mini 8 LED Indicators...........................................................................................................27
1.6.1 Status Indication for Enhanced DeviceNet.............................................................................................................................. 28
2. CHAPTER 2 USING THE MINI8 CONTROLLER .......................................................29
2.1 iTools ...................................................................................................................................29
2.1.1 iTools OPC Open server................................................................................................................................................................ 29
2.2 Modbus, single register, SCADA addressing.........................................................................29
2.3 Modbus (Floating Point) ......................................................................................................30
2.4 Fieldbus ...............................................................................................................................30
2.5 Ethernet...............................................................................................................................30
2.6 Mini8 Controller Execution ..................................................................................................30
2.7 The iTools Operator Interface..............................................................................................31
2.7.1 Scanning............................................................................................................................................................................................. 31
2.7.2 Browsing and Changing Parameter Values.............................................................................................................................. 31
2.8 Recipe Editor .......................................................................................................................33
2.8.1 Recipe Menu Commands.............................................................................................................................................................. 33
2.9 OPCScope ............................................................................................................................34
2.9.1 OPC Scope List Window Context Menu ................................................................................................................................... 35
2.9.2 OPC Scope Chart Window............................................................................................................................................................ 35
2.9.3 OPC Server ........................................................................................................................................................................................ 37
3. CHAPTER 3 CONFIGURATION USING ITOOLS ......................................................38
3.1 Configuration.......................................................................................................................38
3.1.1 On-Line/Off-line Configuration................................................................................................................................................... 38
3.2 Connecting a PC to the Mini8 Controller.............................................................................38
3.2.1 Configuration Cable and Clip ...................................................................................................................................................... 38
3.2.2 Scanning............................................................................................................................................................................................. 38
3.3 Cloning ................................................................................................................................39
3.4 Configuring the Mini8 Controller.........................................................................................40
3.4.1 Function Blocks ............................................................................................................................................................................... 40
3.4.2 Soft Wiring ........................................................................................................................................................................................ 41
3.5 Simple Worked Example ......................................................................................................42
3.5.1 The I/O ............................................................................................................................................................................................... 42

Engineering Handbook Mini8 Controller
2 Part No HA028581 Issue 7.0 Dec-09
3.6 Graphical Wiring Editor....................................................................................................... 48
3.6.1 Graphical Wiring Toolbar ..............................................................................................................................................................49
3.6.2 Function Block..................................................................................................................................................................................49
3.6.3 Wire .....................................................................................................................................................................................................49
3.6.4 Block Execution Order ...................................................................................................................................................................49
3.6.5 Using Function Blocks ....................................................................................................................................................................49
3.6.6 Tooltips...............................................................................................................................................................................................50
3.6.7 Function Block State.......................................................................................................................................................................51
3.6.8 Using Wires........................................................................................................................................................................................52
3.6.9 Using Comments..............................................................................................................................................................................53
3.6.10 Using Monitors ...........................................................................................................................................................................54
3.6.11 Downloading ...............................................................................................................................................................................54
3.6.12 Selections .....................................................................................................................................................................................54
3.6.13 Colours..........................................................................................................................................................................................55
3.6.14 Diagram Context Menu............................................................................................................................................................55
3.6.15 Wiring Floats with Status Information.................................................................................................................................56
3.6.16 Edge Wires ...................................................................................................................................................................................57
4. CHAPTER 4 MINI8 CONTROLLER OVERVIEW ...................................................... 58
4.1 Complete list of Function Blocks. ....................................................................................... 59
5. CHAPTER 5 ACCESS FOLDER.............................................................................. 60
6. CHAPTER 6 INSTRUMENT FOLDER..................................................................... 61
6.1 Instrument / Enables ........................................................................................................... 61
6.2 Instrument Options ............................................................................................................. 62
6.3 Instrument / InstInfo...........................................................................................................62
6.4 Instrument / Diagnostics ..................................................................................................... 63
7. CHAPTER 7 I/O FOLDER..................................................................................... 65
7.1 Module ID ........................................................................................................................... 65
7.1.1 Modules..............................................................................................................................................................................................65
7.2 Logic Input .......................................................................................................................... 66
7.2.1 Logic Input Parameters ..................................................................................................................................................................66
7.3 Logic Output ....................................................................................................................... 67
7.3.1 Logic Out Parameters.....................................................................................................................................................................67
7.3.2 Logic Output Scaling.......................................................................................................................................................................68
7.3.3 Example: To Scale a Proportioning Logic Output.................................................................................................................68
7.4 Relay Output....................................................................................................................... 69
7.4.1 Relay Parameters..............................................................................................................................................................................69
7.5 Thermocouple Input............................................................................................................ 70
7.5.1 Thermocouple Input Parameters ................................................................................................................................................70
7.5.2 Linearisation Types and Ranges...................................................................................................................................................72
7.5.3 CJC Type .............................................................................................................................................................................................72
7.5.4 Sensor Break Value .........................................................................................................................................................................73
7.5.5 Fallback...............................................................................................................................................................................................73
7.5.6 User Calibration (Two Point)........................................................................................................................................................74
7.5.7 PV Offset (Single Point) .................................................................................................................................................................74
7.5.8 Using TC4 or TC8 channel as a mV input.................................................................................................................................75
7.6 Resistance Thermometer Input ........................................................................................... 76
7.6.1 RT Input Parameters .......................................................................................................................................................................76
7.6.2 Linearisation Types and Ranges...................................................................................................................................................77
7.6.3 Using RT4 as mA input...................................................................................................................................................................77
7.7 Analogue Output.................................................................................................................78
7.7.1 Example – 4 to 20mA Analogue Output...................................................................................................................................78
7.8 Fixed IO............................................................................................................................... 79
7.9 Current Monitor.................................................................................................................. 80
7.9.2 Single Phase Configurations .........................................................................................................................................................81
7.9.3 Three Phase Configuration ...........................................................................................................................................................83
7.9.4 Parameter Configuration ...............................................................................................................................................................84
7.9.5 Commissioning .................................................................................................................................................................................85
7.9.6 Calibration .........................................................................................................................................................................................87

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 3
8. CHAPTER 8 ALARMS ..........................................................................................88
8.1 Further Alarm Definitions....................................................................................................88
8.2 Analogue Alarms..................................................................................................................89
8.2.1 Analogue Alarm Types................................................................................................................................................................... 89
8.3 Digital Alarms......................................................................................................................90
8.3.1 Digital Alarm Types......................................................................................................................................................................... 90
8.4 Alarm Outputs .....................................................................................................................90
8.4.1 How Alarms are Indicated............................................................................................................................................................ 90
8.4.2 To Acknowledge an Alarm ........................................................................................................................................................... 90
8.5 Alarm Parameters ................................................................................................................91
8.5.1 Example: To Configure Alarm 1................................................................................................................................................. 92
8.6 Digital Alarm Parameters ....................................................................................................93
8.6.1 Example: To Configure DigAlarm 1 .......................................................................................................................................... 93
8.7 Alarm Summary ...................................................................................................................94
8.8 Alarm Log ............................................................................................................................96
9. CHAPTER 9 BCD INPUT.......................................................................................97
9.1 BCD Parameters...................................................................................................................97
9.1.1 Example: To wire a BCD Input ................................................................................................................................................... 98
10. CHAPTER 10 DIGITAL COMMUNICATIONS...........................................................99
10.1 Configuration Port...............................................................................................................99
10.1.1 Configuration Communications Parameters..................................................................................................................... 99
10.2 Field Communications Port................................................................................................100
10.3 Modbus..............................................................................................................................100
10.3.1 Modbus Connections............................................................................................................................................................. 100
10.3.2 Communications Parameters............................................................................................................................................... 101
10.3.3 Communications Identity...................................................................................................................................................... 101
10.3.4 Modbus Address Switch........................................................................................................................................................ 102
10.3.5 Baud Rate .................................................................................................................................................................................. 102
10.3.6 Parity........................................................................................................................................................................................... 102
10.3.7 RX/TX Delay Time ................................................................................................................................................................... 102
10.4 Modbus Broadcast Master Communications......................................................................103
10.4.1 Mini8 Controller Broadcast Master ................................................................................................................................... 103
10.4.2 Wiring Connections ................................................................................................................................................................ 104
10.5 DeviceNet ..........................................................................................................................105
10.6 Enhanced DeviceNet Interface...........................................................................................105
10.6.1 Address Switch......................................................................................................................................................................... 105
10.6.2 Baud Switch .............................................................................................................................................................................. 105
10.7 Switch Position in iTools ....................................................................................................105
10.8 CANopen............................................................................................................................106
10.8.1 Instrument setup..................................................................................................................................................................... 106
10.8.2 Mini8 Controller CANopen Features................................................................................................................................. 106
10.8.3 Communication Interface..................................................................................................................................................... 107
10.8.4 Network Management (NMT) ............................................................................................................................................. 108
10.8.5 Device Profile DS-404 ............................................................................................................................................................ 109
10.8.6 Default PDOs............................................................................................................................................................................ 109
10.8.7 Enabling and Disabling PDO Communications............................................................................................................... 112
10.8.8 Changing PDO Mapping........................................................................................................................................................ 112
10.8.9 Remapping over the network.............................................................................................................................................. 115
10.8.10 Enabling & Disabling PDO Change of State transmission. .......................................................................................... 117
10.8.11 General Communication Objects ....................................................................................................................................... 117
10.8.12 Device Type Information ...................................................................................................................................................... 117
10.8.13 Error Register ........................................................................................................................................................................... 118
10.8.14 Manufacturer Device Name................................................................................................................................................. 118
10.9 Profibus .............................................................................................................................122
10.10 Ethernet.........................................................................................................................123
10.10.1 Instrument setup..................................................................................................................................................................... 123
10.10.2 Unit Identity.............................................................................................................................................................................. 123
10.10.3 Dynamic Host Configuration Protocol (DHCP) Settings .............................................................................................. 123
10.10.4 iTools Setup.............................................................................................................................................................................. 124
10.10.5 Ethernet Parameters............................................................................................................................................................... 125

Engineering Handbook Mini8 Controller
4 Part No HA028581 Issue 7.0 Dec-09
11. CHAPTER 11 COUNTERS, TIMERS, TOTALISERS, RT CLOCK ............................. 126
11.1 Counters............................................................................................................................ 126
11.1.1 Counter Parameters............................................................................................................................................................... 127
11.2 Timers ............................................................................................................................... 128
11.2.1 Timer Types .............................................................................................................................................................................. 128
11.2.2 On Pulse Timer Mode ........................................................................................................................................................... 128
11.2.3 On Delay Timer Mode........................................................................................................................................................... 129
11.2.4 One Shot Timer Mode .......................................................................................................................................................... 130
11.2.5 Minimum On Timer or Compressor Mode ..................................................................................................................... 131
11.2.6 Timer Parameters ................................................................................................................................................................... 132
11.3 Totalisers........................................................................................................................... 133
11.3.1 Totaliser Parameters .............................................................................................................................................................. 134
11.4 Real Time Clock ................................................................................................................ 135
11.4.1 Real Time Clock Parameters................................................................................................................................................ 135
12. CHAPTER 12 APPLICATIONS ............................................................................ 136
12.1 Humidity ........................................................................................................................... 136
12.1.1 Overview.................................................................................................................................................................................... 136
12.1.2 Temperature Control of an Environmental Chamber.................................................................................................. 136
12.1.3 Humidity Control of an Environmental Chamber ......................................................................................................... 136
12.1.4 Humidity Parameters ............................................................................................................................................................. 137
12.2 Zirconia (Carbon Potential) Control.................................................................................. 138
12.2.1 Temperature Control............................................................................................................................................................. 138
12.2.2 Carbon Potential Control ..................................................................................................................................................... 138
12.2.3 Sooting Alarm.......................................................................................................................................................................... 138
12.2.4 Automatic Probe Cleaning ................................................................................................................................................... 138
12.2.5 Endothermic Gas Correction............................................................................................................................................... 138
12.2.6 Clean Probe.............................................................................................................................................................................. 138
12.2.7 Probe Status ............................................................................................................................................................................. 138
12.2.8 Zirconia Parameters ............................................................................................................................................................... 139
13. CHAPTER 13 INPUT MONITOR......................................................................... 141
13.1 Description........................................................................................................................ 141
13.1.1 Maximum Detect .................................................................................................................................................................... 141
13.1.2 Minimum Detect..................................................................................................................................................................... 141
13.1.3 Time Above Threshold.......................................................................................................................................................... 141
13.2 Input Monitor Parameters................................................................................................. 142
14. CHAPTER 14 LOGIC AND MATHS OPERATORS. ................................................ 143
14.1 Logic Operators................................................................................................................. 143
14.1.1 Logic 8........................................................................................................................................................................................ 143
14.1.2 2 input Logic Operations...................................................................................................................................................... 144
14.1.3 Logic Operator Parameters.................................................................................................................................................. 145
14.2 Eight Input Logic Operators .............................................................................................. 146
14.3 Maths Operators ............................................................................................................... 147
14.3.1 Math Operations..................................................................................................................................................................... 148
14.3.2 Math Operator Parameters.................................................................................................................................................. 149
14.3.3 Sample and Hold Operation................................................................................................................................................ 150
14.4 Multiple Input Operator Block .......................................................................................... 151
14.4.1 Cascaded operation ............................................................................................................................................................... 152
14.4.2 Fallback Strategy..................................................................................................................................................................... 152
14.4.3 Multiple Input Operator Block Parameters .................................................................................................................... 153
14.5 Eight Input Analog Multiplexers........................................................................................ 154
14.5.1 Multiple Input Operator Parameters ................................................................................................................................ 154
14.5.2 Fallback...................................................................................................................................................................................... 154
15. CHAPTER 15 INPUT CHARACTERISATION......................................................... 155
15.1 Input Linearisation ............................................................................................................ 155
15.1.1 Compensation for Sensor Non-Linearities ...................................................................................................................... 156
15.1.2 Input Linearisation Parameters........................................................................................................................................... 157
15.2 Polynomial ........................................................................................................................ 158
16. CHAPTER 16 LOAD .......................................................................................... 160
16.1 Load Parameters ............................................................................................................... 160

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 5
17. CHAPTER 17 CONTROL LOOP SET UP............................................................... 162
17.1 What is a Control Loop? ....................................................................................................162
17.2 Loop Parameters - Main.....................................................................................................163
17.3 Loop Set up........................................................................................................................163
17.3.1 Types of Control Loop........................................................................................................................................................... 164
17.4 PID Control ........................................................................................................................164
17.4.1 Proportional Term .................................................................................................................................................................. 165
17.4.2 Integral Term............................................................................................................................................................................ 165
17.4.3 Derivative Term ....................................................................................................................................................................... 166
17.4.4 High and Low Cutback .......................................................................................................................................................... 167
17.4.5 Integral action and manual reset ....................................................................................................................................... 167
17.4.6 Relative Cool Gain................................................................................................................................................................... 167
17.4.7 Loop Break................................................................................................................................................................................ 168
17.4.8 Cooling Algorithm .................................................................................................................................................................. 168
17.4.9 Gain Scheduling....................................................................................................................................................................... 169
17.4.10 PID Parameters ........................................................................................................................................................................ 170
17.5 Tuning Function Block ....................................................................................................... 171
17.5.1 Loop Response......................................................................................................................................................................... 171
17.5.2 Initial Settings........................................................................................................................................................................... 171
17.5.3 Multi-zone applications......................................................................................................................................................... 172
17.5.4 Automatic Tuning ................................................................................................................................................................... 173
17.5.5 Tune Parameters ..................................................................................................................................................................... 174
17.5.6 To Auto Tune a Loop - Initial Settings.............................................................................................................................. 174
17.5.7 To Start Autotune ................................................................................................................................................................... 174
17.5.8 Autotune and Sensor Break................................................................................................................................................. 175
17.5.9 Autotune and Inhibit ............................................................................................................................................................. 175
17.5.10 Autotune and Gain Scheduling........................................................................................................................................... 175
17.5.11 Autotune from Below SP – Heat/Cool.............................................................................................................................. 176
17.5.12 Autotune From Below SP – Heat Only ............................................................................................................................. 177
17.5.13 Autotune at Setpoint – Heat/Cool..................................................................................................................................... 178
17.5.14 Failure Modes........................................................................................................................................................................... 179
17.5.15 Manual Tuning ......................................................................................................................................................................... 180
17.5.16 Manually Setting Relative Cool Gain ................................................................................................................................. 180
17.5.17 Manually Setting the Cutback Values ............................................................................................................................... 181
17.6 Setpoint Function Block ....................................................................................................182
17.6.1 Setpoint Function Block........................................................................................................................................................ 182
17.6.2 SP Tracking................................................................................................................................................................................ 183
17.6.3 Manual Tracking...................................................................................................................................................................... 183
17.6.4 Rate Limit .................................................................................................................................................................................. 183
17.6.5 Setpoint Parameters............................................................................................................................................................... 183
17.6.6 Setpoint Limits ......................................................................................................................................................................... 185
17.6.7 Setpoint Rate Limit ................................................................................................................................................................. 185
17.6.8 Setpoint Tracking .................................................................................................................................................................... 186
17.6.9 Manual Tracking...................................................................................................................................................................... 186
17.7 Output Function Block ......................................................................................................187
17.7.1 Output Limits ........................................................................................................................................................................... 189
17.7.2 Output Rate Limit ................................................................................................................................................................... 190
17.7.3 Sensor Break Mode ................................................................................................................................................................ 190
17.7.4 Forced Output ......................................................................................................................................................................... 190
17.7.5 Feedforward ............................................................................................................................................................................. 191
17.7.6 Effect of Control Action, Hysteresis and Deadband..................................................................................................... 192
18. CHAPTER 18 SETPOINT PROGRAMMER ........................................................... 193
18.1.1 Time to Target Programmer................................................................................................................................................ 193
18.1.2 Ramp Rate Programmer........................................................................................................................................................ 194
18.2 Mini8 Controller Programmer Block(s) ..............................................................................194
18.3 Segment Types...................................................................................................................195
18.3.1 Rate ............................................................................................................................................................................................. 195
18.3.2 Dwell........................................................................................................................................................................................... 195
18.3.3 Step ............................................................................................................................................................................................. 195
18.3.4 Time ............................................................................................................................................................................................ 195
18.3.5 GoBack ....................................................................................................................................................................................... 195
18.3.6 Wait............................................................................................................................................................................................. 196
18.3.7 End............................................................................................................................................................................................... 196

Engineering Handbook Mini8 Controller
6 Part No HA028581 Issue 7.0 Dec-09
18.4 Output Events ................................................................................................................... 197
18.4.1 Digital Events............................................................................................................................................................................ 197
18.4.2 PV Event & User Value.......................................................................................................................................................... 198
18.4.3 Time Event ................................................................................................................................................................................ 198
18.5 Holdback ........................................................................................................................... 201
18.5.1 Guaranteed Soak..................................................................................................................................................................... 201
18.6 PID Select.......................................................................................................................... 202
18.7 Program Cycles ................................................................................................................. 202
18.7.1 Servo........................................................................................................................................................................................... 202
18.8 Power Fail Recovery .......................................................................................................... 203
18.9 To Run, Hold or Reset a Program...................................................................................... 204
18.9.1 Run.............................................................................................................................................................................................. 204
18.9.2 Reset........................................................................................................................................................................................... 204
18.9.3 Hold ............................................................................................................................................................................................ 204
18.9.4 Skip segment............................................................................................................................................................................ 204
18.9.5 Advance segment ................................................................................................................................................................... 205
18.9.6 Fast.............................................................................................................................................................................................. 205
18.10 PV Start......................................................................................................................... 205
18.11 Configuring the Programmer ........................................................................................ 206
18.12 Programmer Run Status ................................................................................................ 208
18.13 Creating a Program ....................................................................................................... 209
18.14 Program Editor.............................................................................................................. 209
18.14.1 Analog View ............................................................................................................................................................................. 210
18.14.2 Digital View............................................................................................................................................................................... 212
18.14.3 Saving & Loading Programs ................................................................................................................................................. 212
18.14.4 Printing a Program ................................................................................................................................................................. 213
18.15 Wiring the Programmer Function Block........................................................................ 214
19. CHAPTER 19 SWITCH OVER ............................................................................. 216
19.1.1 Example: To Set the Switch Over Levels......................................................................................................................... 216
19.1.2 Switch Over Parameters ....................................................................................................................................................... 217
20. CHAPTER 20 TRANSDUCER SCALING ............................................................... 218
20.1 Auto-Tare Calibration ....................................................................................................... 218
20.2 Load Cell ........................................................................................................................... 219
20.3 Comparison Calibration .................................................................................................... 219
20.4 Transducer Scaling Parameters ......................................................................................... 219
20.4.1 Parameter Notes ..................................................................................................................................................................... 221
20.4.2 Tare Calibration....................................................................................................................................................................... 221
20.4.3 Load Cell.................................................................................................................................................................................... 222
20.4.4 Comparison Calibration ........................................................................................................................................................ 222
21. CHAPTER 21 USER VALUES.............................................................................. 223
21.1 User Value Parameters...................................................................................................... 223
22. CHAPTER 22 CALIBRATION.............................................................................. 224
22.1 TC4 / TC8 User calibration ................................................................................................ 224
22.1.1 Set Up ........................................................................................................................................................................................ 224
22.1.2 Zero Calibration ...................................................................................................................................................................... 224
22.1.3 Voltage Calibration ................................................................................................................................................................ 224
22.1.4 CJC Calibration......................................................................................................................................................................... 224
22.1.5 Sensor-Break Limit Check .................................................................................................................................................... 224
22.2 To Return to TC4/TC8 Factory Calibration ........................................................................ 225
22.3 RT4 User calibration.......................................................................................................... 225
22.3.1 Set Up ........................................................................................................................................................................................ 225
22.3.2 Calibration ................................................................................................................................................................................ 225
22.4 To Return to RT4 Factory Calibration ............................................................................... 225
22.5 Calibration Parameters ..................................................................................................... 226
23. CHAPTER 23 OEM SECURITY............................................................................ 227
23.1 Introduction ...................................................................................................................... 227
23.2 Using OEM Security........................................................................................................... 227
23.3 Step 1 – View iTools OPC Server ....................................................................................... 228
23.4 Step 2 – Create Custom Tags............................................................................................. 229

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 7
23.5 Step 3 – Activate OEM Security .........................................................................................231
23.6 Step 4 – Deactivate OEM Security .....................................................................................232
23.7 Erasing Memory .................................................................................................................232
24. APPENDIX A MODBUS SCADA TABLE............................................................... 233
24.1 Comms Table .....................................................................................................................233
24.2 SCADA Table......................................................................................................................233
24.2.1 Version 2.xx Programmer Addresses - Decimal............................................................................................................. 257
24.2.2 Version 2.xx Programmer Addresses - Hexadecimal.................................................................................................... 264
25. APPENDIX B DEVICENET PARAMETER TABLES.................................................. 271
25.1 IO Re-Mapping Object .......................................................................................................271
25.2 Application Variables Object .............................................................................................272
25.2.1 Table Modification.................................................................................................................................................................. 276
26. APPENDIX C CANOPEN PARAMETER TABLES ................................................... 277
26.1 Manufacturer Object – Pick List ........................................................................................277
27. APPENDIX D VERSION 1.XX PROGRAMMER ...................................................... 281
27.1 Version 1.xx Parameter Tables...........................................................................................281
27.1.1 Configuring the Programmer (V1.xx)................................................................................................................................ 281
27.1.2 To Select, Run, Hold or Reset a Program (V1.xx).......................................................................................................... 282
27.1.3 Creating a Program (V1.xx).................................................................................................................................................. 282
27.1.4 To Select, Run, Hold or Reset a Program (Version 1.xx) ........................................................................................... 283
27.2 Version 1.xx Programmer SCADA addresses ......................................................................283
28. APPENDIX E SAFETY AND EMC INFORMATION ................................................ 288
29. APPENDIX F TECHNICAL SPECIFICATION.......................................................... 291
29.1 Environmental Specification .............................................................................................. 291
29.2 Network Communications Support....................................................................................291
29.3 Configuration Communications Support ...........................................................................291
29.4 Fixed I/O Resources ...........................................................................................................292
29.5 TC8 8-Channel and TC4 4-Channel TC Input Card ..............................................................292
29.6 DO8 8-Channel Digital Output Card...................................................................................293
29.7 RL8 8-Channel Relay Output Card......................................................................................293
29.8 CT3 3-Channel Current-Transformer Input Card ................................................................293
29.9 Load Failure Detection ......................................................................................................294
29.10 DI8 8-Channel Digital Input Card...................................................................................294
29.11 RT4 Resistance Thermometer Input Card ......................................................................294
29.12 AO8 8-Channel and AO4 4-Channel 4-20mA Output Card ..............................................295
29.13 Toolkit Blocks ................................................................................................................ 296
29.14 PID Control Loop Blocks ................................................................................................297
29.15 Process Alarms ..............................................................................................................297
29.16 Setpoint Programmer ....................................................................................................297
29.17 Recipes ..........................................................................................................................297
30. PARAMETER INDEX ........................................................................................... 298
Issue Status of This Manual
Issue 6 includes Enhanced Devicenet Communications.
Issue 7 corrects terminal numbers in Example 2 section 7.9.2.1, adds references to iTools in sections 1.4.11 and
1.4.12 and adds to section 10.8 ‘Note: from July 09 CANopen option has been discontinued’.

Engineering Handbook Mini8 Controller
8 Part No HA028581 Issue 7.0 Dec-09
Mini8 Multi-Loop Process Controller
1. Chapter 1 Installation and Operation
1.1 What Instrument Do I Have?
Thank you for choosing this Mini 8 Controller.
The Mini8 controller is a compact DIN rail mounting multi-loop PID controller and data acquisition unit. It
offers a choice of I/O and a choice of field communications.
The Mini8 controller mounts on 35mm Top Hat DIN Rail. It is intended for permanent installation, for indoor
use only, and to be enclosed in an electrical panel or cabinet.
The Mini8 controller is pre-assembled in the factory to give the I/O required for the application as specified in
the order code. With standard applications the Mini8 controller is also supplied configured. Alternatively, the
Mini8 controller is configured using Eurotherm’s iTools configuration suite running on a personal computer.
All Safety & EMC information is in Appendix E.
The full Technical Specification is in Appendix F.
Whenever the symbol ☺appears in this handbook it indicates a helpful hint

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 9
1.2 Mini8 Controller Ordering Code
1.
Mini8
controller
2.
Loops
3.
Programs
4.
PSU
5.
Comms
6.
Units
7.
I/O
Slot1
8.
I/O
Slot2
9.
I/O
Slot3
10.
I/O
Slot4
11
Application
12 .
Recipe
13.
Wires
14.
Manual
15.
Config
1 7-10 IO Slots 1-4
MINI8
CONTROLLER Mini 8 controller XXX No module fitted
2 Control Loops TC4 4 Channel TC Input
ACQ IO Acquisition only TC8 8 Channel TC Input
4LP 4 Control loops RT4 4 Channel RTD input
8LP 8 Control loops
16LP 16 Control loops
AO4 4 Channel 4-20mA output
(slot 4 only)
3 Programs
0PRG No Programs
AO8 8 Channel 4-20mA output
(slot 4 only)
1PRG 1 Profile – 50 programs DO8 8 Channel logic output
XPRG Multi-profile – 50 programs CT3 3 Channel CT input
4 PSU RL8 8 Channel relay (slots 2, 3 only)
VL 24Vdc DI8 8 Channel logic input
VH 100 – 264 Vac
5 Communications 11 Application
MODBUS Non Isolated Modbus RTU slave STD No configuration
ISOLMBUS Isolated Modbus RTU slave EC8 8 Loop Extrusion Controller
DEVICENET DeviceNet Slave FC8 8 Loop 4-20mA outputs
PBUSRJ45 Profibus Slave RJ45 12 Wires
PBUS9PIN Profibus Slave 9 pin D type 30 30 User Wires
ENETMBUS Ethernet Modbus TCP IP Slave 60 60 User Wires
CANOPEN CANopen Slave 120 120 User Wires
DNETSEMI DeviceNet Enhanced card 250 250 User Wires
13 Recipes
6 Temperature Units None No Recipes
C Centigrade RCP 8 Recipes
F Fahrenheit 14 Manual
ENG English
GER German
FRA French
SPA Spanish
ITA Italian
15 Configuration Software
NONE No CD
ITOOLS
Itools CD & Mini8 controller
documentation

Engineering Handbook Mini8 Controller
10 Part No HA028581 Issue 7.0 Dec-09
1.3 How to Install the Controller
This instrument is intended for permanent installation, for indoor use only, and to be enclosed in an electrical
panel.
Select a location where minimum vibrations are present and the ambient temperature is within 0 and 50oC (32
and 122oF).
Please read the safety information, Appendix E at the end of this manual, before proceeding and refer to the
EMC Booklet part number HA025497 for further information.
1.3.1 Dimensions
Dimension mm
A 108
B 124
C 115
Figure 1-1: Mini8 Controller Dimensions
1.3.2 To Install the Controller
1. Use 35mm symmetrical DIN Rail to EN50022-35 x 7.5 or 35 x 15,
2. Mount the DIN Rail horizontally as indicated in Figure 1.1. The Mini8 controller is NOT designed to be
mounted in other orientations.
3. Hook the upper edge of the DIN rail clip on the instrument on the top of the DIN rail and push.
4. To remove use a screwdriver to lever down the lower DIN rail clip and lift forward when the clip has
released.
5. A second unit on the same DIN rail may be mounted adjacent to the unit.
6. A second unit mounted above or below the unit requires a gap of at least 25mm between the top of
the lower one and the bottom of the higher one.
1.3.3 Environmental Requirements
Mini8 controller Minimum Maximum
Temperature 0°C 55°C
Humidity (non condensing) 5% RH 95% RH
Altitude 2000m
Allow a minimum of
25mm above and below
each unit
Allow a minimum of 25mm for
terminals and cables
C
B
A

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 11
1.4 Electrical Connections
The Mini8 controller is intended for operation at safe low voltage levels, except the RL8 relay module.
Voltages in excess of 42 volts must not be applied to any terminals other than the RL8 relay module.
A protective earth connection is required.
Do not replace the battery. Return to factory if replacement battery is required.
Figure 1-2: Terminal Layout for Mini8 Controller
1.4.1 Power Supply
The power supply requires a supply between 17.8 to 28.8 V dc, 15 watts maximum
Connector terminals will accept wire sizes from 0.5 to 2.5, 24 to 12 awg.
Note: If the Min8 is used with the VT505 panel ensure that the power supply connectors cannot be mistakenly
changed over. The connectors are physically the same, but the electrical connections are not compatible.
Plugging the VT505 connector into the Mini8 controller will short-circuit the 24 volt supply.
24V Ø 24 V dc
24V Ø 24 V dc
0V Ø 0 V dc
GND Ø Ground
User-Terminals
Power
Supply
Fixed IO
Instrument
LEDs
Communications
LEDs
I/O Slots I to 4
Communications
connector
DeviceNet shown
Communications
settings
Communications
Configuration port

Engineering Handbook Mini8 Controller
12 Part No HA028581 Issue 7.0 Dec-09
1.4.2 Fixed IO Connections
These I/O are part of the power supply board and are always fitted.
Digital Inputs : ON requires > 10.8V with 2mA drive, 30V max.
Relays contacts: 1 amp max, 42Vdc. These contacts are NOT rated for mains operation.
1.4.3 Digital Communications Connections
Two communications connections are fitted – a Modbus Configuration port (RJ11) and a Fieldbus port.
The Fieldbus is either Modbus (2 x RJ45 ), DeviceNet, CANopen, Profibus or Ethernet 10baseT.
1.4.4 Configuration Port
The configuration port (Modbus) is on an RJ11 socket, just to the right of the power supply connections. It is a
point to point RS232 connection. Eurotherm supply a standard cable to connect a serial COM port on a
computer to the RJ11 socket, part no. SubMin8/cable/config.
9 pin DF to PC
COM port (RS232)
RJ11
Pin
Function
- 6 N/c
3 (Tx) 5 Rx
2 (Rx) 4 Tx
5 (0v) 3 0v (gnd)
2 N/c
1 Reserved
1.4.5 Modbus
For a full description of the installation of a communications link, including line matching resistors, see
Eurotherm 2000 series communications handbook, part no. HA026230.
RJ45 pin 3 wire 5 wire
8 A RxA
7 B RxB
6 Ground Ground
5
4
3 Ground Ground
2 A TxA
1 B TxB
D1 Ø Digital Input 1
D2 Ø Digital Input 2
C Ø Digital Input common
A1 Ø Relay A n/open
A2 Ø Relay A n/closed
A3 Ø Relay A common
B1 Ø Relay B n/open
B2 Ø Relay B n/closed
B3 Ø Relay B common
Pin 8
Pin 1
Pin 1
Pin 6

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 13
Two RJ45 sockets are provided – one for the incoming connection, the second to loop onto the next instrument
or for a line terminator.
For the address switch see section 10.3.4
The RS485 standard allows one or more instruments to be connected (multi dropped) using a two wire
connection, with cable length of less than 1200m. 31 instruments and one master may be connected.
To use RS485, buffer the RS232 port of the PC with a suitable RS232/RS485 converter. The Eurotherm Controls
KD485 Communications Adapter unit is recommended for this purpose. The use of a RS485 board built into the
computer is not recommended since this board may not be isolated, which may cause noise problems or
damage to the computer, and the RX terminals may not be biased correctly for this application.
Either cut a patch cable and connect the open end to the KD485 converter or, using twin screened cable, crimp
an RJ45 plug on the Mini8 controller end.
The communication line must be daisy chained from device to device and, if the communications line is more
than a metre or two long, it must be correctly terminated. A Modbus terminator containing the correct
termination resistors is available from Eurotherm, order code:
SubMin8/RESISTOR/MODBUS/RJ45. The Modbus terminator is BLACK.
See also the 2000 series Communications Handbook, part number HA026230, available on
www.eurotherm.co.uk. for further information on digital communications.
Figure 1-3: RS485 two-wire Connections
For the 4 wire connection the TxA and TxB are not connected to RxA and RxB but connected separately through
another twisted pair.
220 ohm termination
resistor on the Rx of the
converter unit
Com Rx Tx
RxA
RxB
Com
TxA
TxB
Type KD485
converter
RS232
RS485
Mini8 no. 1 Mini8 no. n
Modbus
Terminator
RJ45 Patch
cables

Engineering Handbook Mini8 Controller
14 Part No HA028581 Issue 7.0 Dec-09
1.4.6 DeviceNet / CANopen
This instrument supports DeviceNetTM CAN interface, CANopen V4.02 CAN interface and Enhanced DeviceNetTM .
DeviceNet and CANopen both use a 5 way, 5.08mm pitch, connector/screw terminal. The DeviceNet bus is
powered (24V) from the system network, not from the instrument. The Mini8 controller requirement is a load
of around 100mA. For the address switch see section 10.5.
Mini8
controller
Label
Colour Description
V+ Red Network power positive terminal. Connect the red wire of the DeviceNet /
CANopen cable here. If the network does not supply the power, connect the
positive terminal of an external 11-25 Vdc power supply.
CAN_H White CAN_H data bus terminal. Connect the white wire of the DeviceNet /
CANopen cable here.
SHIELD None Shield/Drain wire connection. Connect the DeviceNet cable shield here. To
prevent ground loops, the network should be grounded in only one location.
CAN_L Blue CAN_L data bus terminal. Connect the blue wire of the DeviceNet / CANopen
cable here.
V- Black Network power negative terminal. Connect the black wire of the DeviceNet /
CANopen cable here. If the DeviceNet network does not supply the power,
connect the negative terminal of an external 11-25 Vdc power supply.
The DeviceNet specification states that the bus terminators of 121 ohm should not be included as any part of a
master or slave. They are not supplied but should be included in the cabling between CAN_H and CAN_L where
required.
The CANopen Cabling and Connector Pin Assignment specification specifies that the minimum termination
resistance is 118 ohm with the following guidelines. They are not supplied but should be included in the cabling
where required.
Bus length (m) Termination resistance (ohms)
0 – 40 124
40 – 100 150 - 300
Network length depends on Baud rate.
Network Length Varies w/speed, up to 4000m possible w/repeaters
Baud Rate 125 250 500 1M (CANopen)
Thin trunk 100m (328ft) 100m (328ft) 100m (328ft) 100m
Max drop 6m (20ft) 6m (20ft) 6m (20ft) 6m(20ft)
Cumulative drop 156m (512ft) 78m (256ft) 39m (128ft) 19m (64ft)
Pin Legend Function
5 V+ V+
4 CH CAN HIGH
3 DR DRAIN
2 CL CAN LOW
1 V- V- 1
5

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 15
1.4.7 Enhanced DeviceNet Interface
This version of DeviceNet has been added for use in the Semiconductor industry. Configuration for both
versions is the same and is described in the DeviceNet Handbook HA027506 which can be downloaded from
www.eurotherm.com.
The Enhanced DeviceNet interface uses a different connector, as described below, but cabling, cable
specification and termination are the same as described in sections 1.4.6 and 1.4.8.
1.4.7.1 Connector
The 5-way connector shown in the previous section is replaced by a ‘Micro-Connect’ circular 5-pin M12 male
connector mounted in the module.
Pin Legend Function
5 CAN_L CAN LOW
4 CAN_H CAN HIGH
3 V- V-
2 V+ V+
1 DR DRAIN
1.4.7.2 Switches and LED Indicators
The Enhanced DeviceNet interface also uses different Module and Network Status indicators, address and baud
rate switches.
To set the Address and Baud Rate, see section 10.6.
For Module and Network Status indication see section 1.6.1.
1
2
34
Plug
Key
View from front
5

Engineering Handbook Mini8 Controller
16 Part No HA028581 Issue 7.0 Dec-09
1.4.8 Typical DeviceNet / CANopen Wiring Diagram
* CANopen specifies 124 ohms, see section 1.4.6.
See also the DeviceNet Communications Handbook HA027506
Mini8
V+
CAN-H
Drain
CAN-L
V-
(SLAVE)
Address 11
V+ 5
CAN-H 4
Drain 3
CAN-L 2
V- 1
RED
WHT
BLU
BLK
Mini8
V+
CAN-H
Drain
CAN-L
V-
(SLAVE)
Address 12
Mini8
V+
CAN-H
Drain
CAN-L
V-
(SLAVE)
Address N+1
121
Ω*
V+
V-
Gnd
Supply
24Vdc (+/- 1%)
250mV p-p Ripple
max
MASTER

Mini8 Controller Engineering Handbook
Part No HA028581 Issue 7.0 Dec-09 17
1.4.9 Profibus DP
Two Profibus communications board options are available for the Mini8 controller.
1. Standard Profibus 3 wire RS485 9 pin D connector intended for installation using standard Profibus cabling.
Note that in this arrangement line terminations must be catered for in the cabling.
2. Profibus 3 wire RS485 via 2 paralleled RJ45 sockets. Instruments may be daisy chained using suitable RJ45 cables
and an RJ45 termination plug is available to terminate the line.
1.4.9.1 Profibus Interface (D-Type Connector)
Connector: 9-Way D-Type, R/A, Female, 4-40 UNC Studs:
Pin Function
1 Shield (Case)
2 N/C
3 RxD/TxD+ P (B)
4 N/C
5 GND (0V)
6 VP (+5V)
7 N/C
8 RxD/TxD- N (A)
9 N/C
Terminations must be included in the cabling.
1.4.9.2 Profibus Interface (RJ45 Connector)
Connector: Two RJ45, parallel connected (for daisy-chain):
Pin 3-Wire
8 (do not use)
7 (do not use)
6 VP (+5V)
5
4
3 GND
2 RxD/TxD+ P (B)
1 RxD/TxD- N (A)
One connector may be used to terminate line using
SubMini8/Term/Profibus/RJ45
This terminator is grey.
8
1

Engineering Handbook Mini8 Controller
18 Part No HA028581 Issue 7.0 Dec-09
1.4.10 Ethernet (Modbus TCP)
The Ethernet connection uses standard Cat5E patch cables (RJ45). These would be used with a 10BaseT hub to
create a network.
A crossover patch cable may be used ‘point-to-point’ i.e. to connect a single instrument directly to a PC.
Connector: RJ45:
Pin Function
8
7
6 RX-
5
4
3 RX+
2 TX-
1 TX+
Network traffic activity is displayed on indicators built into the connector, yellow indicates network activity and
green shows the Mini8 controller is communicating.
8
1