Rockwell Automation Allen-Bradley MicroLogix 1400 User manual

MicroLogix 1400
Programmable
Controllers
Bulletin1766Controllersand1762
Expansion I/O
User Manual

Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application,
Installation and Maintenance of Solid State Controls (publication SGI-1.1
available from your local Rockwell Automation sales office or online at
http://literature.rockwellautomation.com) describes some important
differences between solid state equipment and hard-wired electromechanical
devices. Because of this difference, and also because of the wide variety of
uses for solid state equipment, all persons responsible for applying this
equipment must satisfy themselves that each intended application of this
equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for
indirect or consequential damages resulting from the use or application of
this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with
any particular installation, Rockwell Automation, Inc. cannot assume
responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to
use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of Rockwell Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware
of safety considerations.
Rockwell Automation, Allen-Bradley, SLC 5/02, SLC 5/03, PLC-5, MicroLogix, SLC 500, RSLogix, RSLinx, RSLogix 500, RSLogix
Micro, and TechConnect are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
WARNING Identifies information about practices or circumstances that can cause
an explosion in a hazardous environment, which may lead to personal
injury or death, property damage, or economic loss.
IMPORTANT Identifies information that is critical for successful application and
understanding of the product.
ATTENTION Identifies information about practices or circumstances that can lead
to: personal injury or death, property damage, or economic loss.
Attentions help you identify a hazard, avoid a hazard, and recognize
the consequence.
SHOCK HAZARD Labels may be on or inside the equipment, such as a drive or motor, to
alert people that dangerous voltage may be present.
BURN HAZARD Labels may be on or inside the equipment, such as a drive or motor, to
alert people that surfaces may reach dangerous temperatures.

3Publication 1766-UM001A-EN-P - October 2008
Table of Contents
Preface
Who Should Use this Manual. . . . . . . . . . . . . . . . . . . . . . . . 11
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . 12
Common Techniques Used in this Manual . . . . . . . . . . . . . . 12
Chapter 1
Hardware Overview
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Component Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MicroLogix 1400 Memory Module and Built-in Real-Time
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Communication Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Communication Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 2
Installing Your Controller
Agency Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Compliance to European Union Directives . . . . . . . . . . . . . . 19
EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Low Voltage Directive . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installation Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Hazardous Location Considerations . . . . . . . . . . . . . . . . 22
Disconnecting Main Power. . . . . . . . . . . . . . . . . . . . . . . 23
Safety Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Power Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Periodic Tests of Master Control Relay Circuit . . . . . . . . . 24
Power Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Isolation Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power Supply Inrush . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Loss of Power Source. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Input States on Power Down . . . . . . . . . . . . . . . . . . . . . 25
Other Types of Line Conditions . . . . . . . . . . . . . . . . . . . 25
Preventing Excessive Heat. . . . . . . . . . . . . . . . . . . . . . . . . . 26
Master Control Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Using Emergency-Stop Switches . . . . . . . . . . . . . . . . . . . 28
Schematic (Using IEC Symbols) . . . . . . . . . . . . . . . . . . . 29
Schematic (Using ANSI/CSA Symbols). . . . . . . . . . . . . . . 30
Installing a Memory Module . . . . . . . . . . . . . . . . . . . . . . . . 31
Using the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Connecting the Battery Wire Connector . . . . . . . . . . . . . 33
Controller Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . 34
Controller and Expansion I/O Spacing . . . . . . . . . . . . . . . . . 34
Mounting the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
DIN Rail Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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4Table of Contents
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1762 Expansion I/O Dimensions . . . . . . . . . . . . . . . . . . . . . 38
Mounting 1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . 38
DIN Rail Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Connecting Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 3
Wiring Your Controller
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Wiring Recommendation . . . . . . . . . . . . . . . . . . . . . . . . 41
Wire without Spade Lugs . . . . . . . . . . . . . . . . . . . . . . . . 42
Wire with Spade Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Using Surge Suppressors . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Recommended Surge Suppressors . . . . . . . . . . . . . . . . . 45
Grounding the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Terminal Block Layouts . . . . . . . . . . . . . . . . . . . . . . . . . 47
Sinking and Sourcing Wiring Diagrams . . . . . . . . . . . . . . . . 48
1766-L32BWA, 1766-L32AWA, 1766-L32BXB, 1766-L32BWAA,
1766-L32AWAA, 1766-L32BXBA Wiring Diagrams . . . . . . 49
Controller I/O Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Minimizing Electrical Noise. . . . . . . . . . . . . . . . . . . . . . . 51
Wiring Your Analog Channels . . . . . . . . . . . . . . . . . . . . . . . 51
Analog Channel Wiring Guidelines . . . . . . . . . . . . . . . . . 52
Minimizing Electrical Noise on Analog Channels . . . . . . . 53
Grounding Your Analog Cable . . . . . . . . . . . . . . . . . . . . 53
Expansion I/O Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Digital Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 55
Analog Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Chapter 4
Communication Connections
Supported Communication Protocols . . . . . . . . . . . . . . . . . . 67
Default Communication Configuration . . . . . . . . . . . . . . . . . 68
Using the Communications Toggle Functionality . . . . . . . . . 68
Changing Communication Configuration. . . . . . . . . . . . . 69
Connecting to the RS-232 Port . . . . . . . . . . . . . . . . . . . . . . . 72
Making a DF1 Point-to-Point Connection . . . . . . . . . . . . 72
Using a Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Connecting to a DF1 Half-Duplex Network. . . . . . . . . . . 76
Connecting to a RS-485 Network . . . . . . . . . . . . . . . . . . . . . 79
DH-485 Configuration Parameters. . . . . . . . . . . . . . . . . . 79
Recommended Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
DH-485 Communication Cable . . . . . . . . . . . . . . . . . . . . 81

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Table of Contents 5
Connecting the Communication Cable to the DH-485
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Grounding and Terminating the DH-485 Network . . . . . . 83
Connecting the AIC+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Cable Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Recommended User-Supplied Components. . . . . . . . . . . 88
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Install and Attach the AIC+. . . . . . . . . . . . . . . . . . . . . . . 90
Powering the AIC+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Connecting to DeviceNet. . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Cable Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Connecting to Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Ethernet Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Chapter 5
Using the LCD
Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Startup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Main Menu and Default Screen. . . . . . . . . . . . . . . . . . . 100
Operating Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Using Menus to Choose Values. . . . . . . . . . . . . . . . . . . 102
Selecting Between Menu Items . . . . . . . . . . . . . . . . . . . 103
Cursor Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Setting Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
I/O Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Viewing I/O Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Monitor User Defined Target Files . . . . . . . . . . . . . . . . . . . 107
Target User Defined File Number (TUF) . . . . . . . . . . . . 107
Monitoring a Bit File . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Monitoring Integer Files . . . . . . . . . . . . . . . . . . . . . . . . 112
Monitoring Double Integer files . . . . . . . . . . . . . . . . . . 119
Monitor Floating point Files . . . . . . . . . . . . . . . . . . . . . 124
Monitor System Status Files . . . . . . . . . . . . . . . . . . . . . 125
Using the Mode Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Controller Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Changing Mode Switch Position . . . . . . . . . . . . . . . . . . 127
Using a User Defined LCD Screen . . . . . . . . . . . . . . . . . . . 128
User Defined LCD Screen. . . . . . . . . . . . . . . . . . . . . . . 129
Configuring Advanced Settings . . . . . . . . . . . . . . . . . . . . . 131
Changing Key In Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Key In Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Changing Key In Mode . . . . . . . . . . . . . . . . . . . . . . . . 132
Using Communications Toggle Functionality . . . . . . . . . . . 133
Ethernet Network Configuration . . . . . . . . . . . . . . . . . . . . 134
Viewing Ethernet Status . . . . . . . . . . . . . . . . . . . . . . . . 134
Configuring the IP Address. . . . . . . . . . . . . . . . . . . . . . 135

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6Table of Contents
Configuring the Ethernet Port . . . . . . . . . . . . . . . . . . . . 139
Configuring Ethernet Protocol Setup . . . . . . . . . . . . . . . 142
Using Trim Pots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Trim Pot Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Changing Data Value of a Trim Pot. . . . . . . . . . . . . . . . 145
Trim Pot Configuration in LCD Function File. . . . . . . . . 147
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Viewing System Information . . . . . . . . . . . . . . . . . . . . . . . 148
Viewing Fault Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Saving/Loading Communication EEPROM . . . . . . . . . . . . . 151
Saving communication EEPROM. . . . . . . . . . . . . . . . . . 151
Loading communication EEPROM. . . . . . . . . . . . . . . . . 152
LCD setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Configuring contrast value . . . . . . . . . . . . . . . . . . . . . . 154
Configuring the backlight . . . . . . . . . . . . . . . . . . . . . . . 155
Chapter 6
Using Real-Time Clock and
Memory Modules
Real-Time Clock Operation . . . . . . . . . . . . . . . . . . . . . . . . 159
Operation at Power-up and Entering a Run or Test Mode . .
159
Writing Data to the Real-Time Clock. . . . . . . . . . . . . . . 160
RTC Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . 160
Memory Module Operation . . . . . . . . . . . . . . . . . . . . . . . . 161
User Program , User Data, Datalog and Recipe Back-up 161
Program Compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Data File Download Protection. . . . . . . . . . . . . . . . . . . 162
Memory Module Write Protection . . . . . . . . . . . . . . . . . 162
Removal/Insertion Under Power. . . . . . . . . . . . . . . . . . 162
Memory Module Information File . . . . . . . . . . . . . . . . . 162
Program /Data Download . . . . . . . . . . . . . . . . . . . . . . 163
Program /Data Upload . . . . . . . . . . . . . . . . . . . . . . . . . 163
Chapter 7
Online Editing
Directions and Cautions for MicroLogix 1400 Online
Editing User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
A Download is Required Before Starting Online Editing. 165
Types of Online Editing . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Edit Functions in Runtime Online Editing . . . . . . . . . . . 167
Edit Functions in Program Online Editing . . . . . . . . . . . 167
Appendix A
Specifications
Specifications for Inputs . . . . . . . . . . . . . . . . . . . . . . 169
Specifications for Outputs in Hazardous Locations
(Class 1, Division 2, Groups A, B, C, D) . . . . . . . . . . . . 171

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Table of Contents 7
SpecificationsforOutputsin(Non-Hazardous)Locationsonly
172
Working Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Expansion I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . 177
Digital I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Analog Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
-Appendix B
Replacement Parts
MicroLogix 1400 Replacement Kits. . . . . . . . . . . . . . . . . . . 193
Lithium Battery (1747-BA) . . . . . . . . . . . . . . . . . . . . . . . . 194
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Battery Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
1762 Expansion I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Expansion I/O Replacement Doors. . . . . . . . . . . . . . . . 198
Expansion I/O Replacement DIN Latches . . . . . . . . . . . 198
Expansion I/O Replacement Door Labels . . . . . . . . . . . 198
Appendix C
Troubleshooting Your System
Understanding the Controller Status Indicators . . . . . . . . . . 199
Controller Status LED Indicators . . . . . . . . . . . . . . . . . . 199
Status Indicators on the LCD . . . . . . . . . . . . . . . . . . . . 200
I/O Status Indicators on the LCD . . . . . . . . . . . . . . . . . 201
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Controller Error Recovery Model . . . . . . . . . . . . . . . . . . . . 203
Analog Expansion I/O Diagnostics and Troubleshooting. . . 204
Module Operation and Channel Operation . . . . . . . . . . 204
Power-up Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 204
Critical and Non-Critical Errors . . . . . . . . . . . . . . . . . . . 205
Module Error Definition Table . . . . . . . . . . . . . . . . . . . 205
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Calling Rockwell Automation for Assistance . . . . . . . . . . . . 208
Appendix D
Using ControlFlash to Upgrade
Your Operating System
Preparing for Firmware Upgrade . . . . . . . . . . . . . . . . . . . . 209
Install ControlFlash Software . . . . . . . . . . . . . . . . . . . . 209
Prepare the Controller for Firmware Upgrade . . . . . . . . 210
Using ControlFlash for Firmware Upgrade . . . . . . . . . . . . . 211
ControlFlash Error Messages . . . . . . . . . . . . . . . . . . . . . . . 221
Missing or Corrupt OS state . . . . . . . . . . . . . . . . . . . . . . . . 223
Recovering from Missing or Corrupt OS State . . . . . . . . 224

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8Table of Contents
Appendix E
Connecting to Networks via
RS-232/RS-485 Interface
RS-232 Communication Interface . . . . . . . . . . . . . . . . . . . . 225
RS-485 Communication Interface . . . . . . . . . . . . . . . . . . . . 225
DF1 Full-Duplex Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 225
DF1 Half-Duplex Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 226
DF1 Half-Duplex Operation . . . . . . . . . . . . . . . . . . . . . 227
Considerations When Communicating as a DF1 Slave
on a Multi-drop Link . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Using Modems with MicroLogix Programmable Controllers .
229
DH-485 Communication Protocol. . . . . . . . . . . . . . . . . . . . 231
DH-485 Configuration Parameters. . . . . . . . . . . . . . . . . 231
Devices that use the DH-485 Network . . . . . . . . . . . . . 232
Important DH-485 Network Planning Considerations. . . 232
Example DH-485 Connections . . . . . . . . . . . . . . . . . . . 237
Modbus Communication Protocol . . . . . . . . . . . . . . . . . . . 239
ASCII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Distributed Network Protocol (DNP3) . . . . . . . . . . . . . . . . 239
Appendix F
Micrologix 1400 Distributed
Network Protocol (DNP3)
Channel Configuration for DNP3 Slave. . . . . . . . . . . . . . . . 241
Channel 0 and Channel 2 Link Layer Configuration
Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
DNP3 Slave Application Layer Configuration Parameters 248
DNP3 Slave Application Layer . . . . . . . . . . . . . . . . . . . . . . 254
Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Internal Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
DNP3 Objects and MicroLogix 1400 Data Files . . . . . . . . . . 259
DNP3 Binary Input Object . . . . . . . . . . . . . . . . . . . . . . 264
DNP3 Binary Output Object . . . . . . . . . . . . . . . . . . . . . 266
DNP3 Double Bit Binary Input Object . . . . . . . . . . . . . 270
DNP3 Counter Object. . . . . . . . . . . . . . . . . . . . . . . . . . 272
DNP3 Frozen Counter Object . . . . . . . . . . . . . . . . . . . . 275
DNP3 Analog Input Object. . . . . . . . . . . . . . . . . . . . . . 278
DNP3 Analog Output Object . . . . . . . . . . . . . . . . . . . . 282
DNP3 BCD Object . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Object Quality Flags. . . . . . . . . . . . . . . . . . . . . . . . . . . 286
DNP3 Device Attribute Object . . . . . . . . . . . . . . . . . . . . . . 288
Event Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Generating Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Control Generating Event . . . . . . . . . . . . . . . . . . . . . . . 300
Reporting Event By Polled Response . . . . . . . . . . . . . . 302
Reporting Event By Unsolicited Response . . . . . . . . . . . 303
Collision Avoidance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Time Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306

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Download a User Program via DNP3 Network . . . . . . . . . . 307
Default Directories and Files. . . . . . . . . . . . . . . . . . . . . 308
Generating *.IMG file using RSLogix 500/RSLogix Micro. 308
Rules for File Authentication. . . . . . . . . . . . . . . . . . . . . 310
Rules for Downloading a User Program . . . . . . . . . . . . 311
Rules for Uploading a User Program. . . . . . . . . . . . . . . 312
Rules for Initializing a User Program. . . . . . . . . . . . . . . 313
Rules for uploading Communication Status Files . . . . . . 313
Starting and Stopping User Programs (Mode Change) via
DNP3 Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Initialize User Program. . . . . . . . . . . . . . . . . . . . . . . . . 314
Start User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Stop User Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Function Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Implementation Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Appendix G
Connecting to Networks via
Ethernet Interface
MicroLogix 1400 Controllers and Ethernet Communication . 331
MicroLogix 1400 Performance Considerations. . . . . . . . . . . 332
MicroLogix 1400 and PC Connections to the
Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Ethernet Network Topology . . . . . . . . . . . . . . . . . . . . . 333
Connecting an Ethernet switch on the Ethernet Network 333
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Ethernet Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Duplicate IP address Detection. . . . . . . . . . . . . . . . . . . . . 337
Configuring the Ethernet Channel on the MicroLogix 1400 . 338
Configuration Using RSLogix 500/RSLogix Micro Programming
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Configuration Via BOOTP . . . . . . . . . . . . . . . . . . . . . . . . . 340
Using the Rockwell BOOTP/DHCP Utility. . . . . . . . . . . 341
Using a DHCP Server To Configure Your Processor . . . . . . 343
Using Subnet Masks and Gateways . . . . . . . . . . . . . . . . . . 344
Manually Configuring Channel 1 for Controllers on
Subnets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
MicroLogix 1400 Embedded Web Server Capability . . . . . . 346
Appendix H
System Loading and Heat
Dissipation
System Loading Calculations. . . . . . . . . . . . . . . . . . . . . . . 347
System Loading Example Calculations . . . . . . . . . . . . . 348
System Loading Worksheet . . . . . . . . . . . . . . . . . . . . . . . . 350
Current Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Calculating Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . 352

Publication 1766-UM001A-EN-P - October 2008
10 Table of Contents
Glossary
Index