Sel SEL-787 User manual

Instruction Manual
20150130
SEL-787 Relay
Transformer Protection Relay
Instruction Manual
*PM787-01-NB*

SEL-787 Relay Instruction Manual Date Code 20150130
© 2006–2015 by Schweitzer Engineering Laboratories, Inc. All rights reserved.
All brand or product names appearing in this document are the trademark or registered trademark of their respective holders. No SEL
trademarks may be used without written permission. SEL products appearing in this document may be covered by U.S. and Foreign patents.
Schweitzer Engineering Laboratories, Inc. reserves all rights and benefits afforded under federal and international copyright and patent laws in
its products, including without limitation software, firmware, and documentation.
The information in this document is provided for informational use only and is subject to change without notice. Schweitzer Engineering
Laboratories, Inc. has approved only the English language document.
This product is covered by the standard SEL 10-year warranty. For warranty details, visit www.selinc.com or contact your customer service
representative. PM787-01

Date Code 20150130 Instruction Manual SEL-787 Relay
Table of Contents
Instruction Manual
List of Tables .......................................................................................................................................................v
List of Figures ....................................................................................................................................................xi
Preface ...............................................................................................................................................................xvii
Manual Overview...........................................................................................................................................xvii
Safety Information.........................................................................................................................................xviii
General Information ........................................................................................................................................xxi
Section 1: Introduction and Specifications
Overview ......................................................................................................................................................... 1.1
Features............................................................................................................................................................1.1
Models, Options, and Accessories...................................................................................................................1.2
Applications..................................................................................................................................................... 1.4
Getting Started................................................................................................................................................. 1.4
Specifications ..................................................................................................................................................1.9
Section 2: Installation
Overview ......................................................................................................................................................... 2.1
Relay Placement..............................................................................................................................................2.1
I/O Configuration ............................................................................................................................................2.2
Rear-Panel Connections ................................................................................................................................2.18
AC/DC Control Connection Diagrams..........................................................................................................2.22
Field Serviceability........................................................................................................................................2.31
Section 3: PC Software
Overview ......................................................................................................................................................... 3.1
Setup................................................................................................................................................................3.2
Terminal...........................................................................................................................................................3.4
Settings Database Management and Drivers................................................................................................... 3.5
Settings............................................................................................................................................................3.6
Event Analysis............................................................................................................................................... 3.10
Meter and Control..........................................................................................................................................3.12
ACSELERATOR QuickSet Help...................................................................................................................... 3.14
Section 4: Protection and Logic Functions
Overview ......................................................................................................................................................... 4.1
Application Data.............................................................................................................................................. 4.2
Group Settings (SET Command).....................................................................................................................4.2
Basic Protection............................................................................................................................................... 4.5
RTD-Based Protection................................................................................................................................... 4.46
Voltage-Based Protection ..............................................................................................................................4.48
Demand Metering..........................................................................................................................................4.62
Trip/Close Logic............................................................................................................................................4.67
Logic Settings (SET L Command)................................................................................................................ 4.70
Global Settings (SET G Command)..............................................................................................................4.81
Port Settings (SET P Command)...................................................................................................................4.94
Front-Panel Settings (SET F Command).......................................................................................................4.97
Report Settings (SET R Command)............................................................................................................4.108
DNP Map Settings (SET DNP n Command, n = 1, 2, or 3)........................................................................................4.110
Modbus Map Settings (SET M Command).................................................................................................4.111

ii
SEL-787 Relay Instruction Manual Date Code 20150130
Table of Contents
Section 5: Metering and Monitoring
Overview ......................................................................................................................................................... 5.1
Power Measurement Conventions ................................................................................................................... 5.2
Metering ..........................................................................................................................................................5.3
Small Signal Cutoff for Metering..................................................................................................................5.12
Load Profiling................................................................................................................................................ 5.12
Through-Fault Event Monitoring ..................................................................................................................5.13
Section 6: Settings
Overview ......................................................................................................................................................... 6.1
View/Change Settings With Front Panel.........................................................................................................6.2
View/Change Settings Over Communications Port......................................................................................... 6.4
Setting Entry Error Messages.......................................................................................................................... 6.6
SEL-787 Settings Sheets
Section 7: Communications
Overview ......................................................................................................................................................... 7.1
Communications Interfaces............................................................................................................................. 7.1
Communications Protocols............................................................................................................................ 7.10
SEL ASCII Protocol and Commands............................................................................................................7.14
Section 8: Front-Panel Operations
Overview ......................................................................................................................................................... 8.1
Front-Panel Layout.......................................................................................................................................... 8.1
Human-Machine Interface............................................................................................................................... 8.2
Operation and Target LEDs........................................................................................................................... 8.12
Section 9: Analyzing Events
Overview ......................................................................................................................................................... 9.1
Event Reporting...............................................................................................................................................9.2
Sequential Events Recorder (SER) Report....................................................................................................9.22
Section 10: Testing and Troubleshooting
Overview ....................................................................................................................................................... 10.1
Testing Tools.................................................................................................................................................. 10.1
Commissioning Tests.....................................................................................................................................10.3
Periodic Tests (Routine Maintenance)......................................................................................................... 10.10
Self-Test....................................................................................................................................................... 10.11
Troubleshooting...........................................................................................................................................10.15
Factory Assistance.......................................................................................................................................10.15
Appendix A: Firmware and Manual Versions
Firmware......................................................................................................................................................... A.1
ICD File.......................................................................................................................................................... A.7
Instruction Manual........................................................................................................................................ A.10
Appendix B: Firmware Upgrade Instructions
Overview .........................................................................................................................................................B.1
Upgrade Firmware Using ACSELERATOR QuickSet.......................................................................................B.2
Upgrade Firmware Using a Terminal Emulator..............................................................................................B.6
Relays With IEC 61850 Option.......................................................................................................................B.8
Factory Assistance...........................................................................................................................................B.9

iii
Date Code 20150130 Instruction Manual SEL-787 Relay
Table of Contents
Appendix C: SEL Communications Processors
SEL Communications Protocols......................................................................................................................C.1
SEL Communications Processor.....................................................................................................................C.3
SEL Communications Processor and Relay Architecture...............................................................................C.5
Appendix D: DNP3 Communications
Overview ........................................................................................................................................................ D.1
Introduction to DNP3 ..................................................................................................................................... D.1
DNP3 in the SEL-787..................................................................................................................................... D.6
DNP3 Documentation .................................................................................................................................. D.13
Appendix E: Modbus RTU Communications
Overview .........................................................................................................................................................E.1
Communications Protocol...............................................................................................................................E.2
Modbus Register Map ...................................................................................................................................E.23
Appendix F: IEC 61850 Communications
Features............................................................................................................................................................ F.1
Introduction to IEC 61850............................................................................................................................... F.2
IEC 61850 Operation....................................................................................................................................... F.3
IEC 61850 Configuration.............................................................................................................................. F.11
Logical Node Extensions............................................................................................................................... F.13
Logical Nodes................................................................................................................................................ F.15
Protocol Implementation Conformance Statement ....................................................................................... F.29
ACSI Conformance Statements..................................................................................................................... F.35
Appendix G: DeviceNet Communications
Overview ........................................................................................................................................................ G.1
DeviceNet Card .............................................................................................................................................. G.2
Features........................................................................................................................................................... G.2
Electronic Data Sheet..................................................................................................................................... G.3
Appendix H: Synchrophasors
Introduction .................................................................................................................................................... H.1
Synchrophasor Measurement ......................................................................................................................... H.2
Settings for Synchrophasors........................................................................................................................... H.4
Synchrophasor Relay Word Bits..................................................................................................................... H.9
View Synchrophasors Using the MET PM Command................................................................................. H.10
C37.118 Synchrophasor Protocol................................................................................................................. H.11
Appendix I: MIRRORED BITS Communications
Overview ..........................................................................................................................................................I.1
Operation..........................................................................................................................................................I.1
Settings.............................................................................................................................................................I.5
Appendix J: Relay Word Bits
Overview ..........................................................................................................................................................J.1
Definitions ........................................................................................................................................................J.4
Appendix K: Analog Quantities
Glossary
Index
SEL-787 Relay Command Summary

This page intentionally left blank

Date Code 20150130 Instruction Manual SEL-787 Relay
List of Tables
Instruction Manual Table 1.1 SEL-787 Serial Port Settings.................................................................................................. 1.6
Table 2.1 Power Supply Card Inputs Terminal Designation.................................................................. 2.4
Table 2.2 Communication Ports.............................................................................................................2.4
Table 2.3 Communication Card Interfaces and Connectors................................................................... 2.5
Table 2.4 6 ACI Current Card Inputs Terminal Designation .................................................................2.6
Table 2.5 1 ACI/3 AVI or 1 ACI Current/Voltage Card Inputs Terminal Designation ..........................2.7
Table 2.6 Four Analog Input/Four Analog Output (4 AI/4 AO) Card Terminal Allocation.................. 2.7
Table 2.7 I/O (3 DI/4 DO/1 AO) Card Terminal Allocation.................................................................. 2.8
Table 2.8 RTD (10 RTD) Card Terminal Allocation.............................................................................. 2.8
Table 2.9 Four Digital Input/Four Digital Output (4 DI/4 DO) Card Terminal Allocation ................... 2.9
Table 2.10 Eight Digital Input (8 DI) Card Terminal Allocation.............................................................2.9
Table 2.11 Four Digital Inputs, One Form-B Digital Output, Two Form-C Digital Outputs
(4 DI/3DO) Card Terminal Allocation .............................................................................2.10
Table 2.12 Jumper Functions and Default Positions.............................................................................. 2.16
Table 2.13 Typical Maximum RTD Lead Length.................................................................................. 2.21
Table 3.1 SEL Software Solutions......................................................................................................... 3.1
Table 3.2 ACSELERATOR QuickSet SEL-5030 Software....................................................................... 3.1
Table 3.3 File/Tools Menus.................................................................................................................... 3.7
Table 3.4 ACSELERATOR QuickSet Help............................................................................................. 3.14
Table 4.1 Identifier Settings...................................................................................................................4.2
Table 4.2 Configurations and Ratings (Phase CTs, Power Transformer) .............................................. 4.3
Table 4.3 Configurations and Ratings (Optional Neutral CT, Phase PT) ..............................................4.4
Table 4.4 Differential Element Settings...............................................................................................4.10
Table 4.5 Preferred Compensation Settings (W1CTC and W2CTC) .................................................. 4.22
Table 4.6 Restricted Earth Fault Settings.............................................................................................4.33
Table 4.7 Winding n Maximum Phase Overcurrent Settings (n = 1 or 2)............................................ 4.34
Table 4.8 Winding n Residual Overcurrent Settings (n = 1, 2)............................................................4.37
Table 4.9 Winding n Negative-Sequence Overcurrent Settings (n = 1 or 2)........................................4.37
Table 4.10 Winding n Maximum Phase Time-Overcurrent (n = 1 or 2)................................................4.38
Table 4.11 Winding n Phase A, B, and C Time-Overcurrent (n = 1 or 2)....................................................4.39
Table 4.12 Residual Time-Overcurrent Settings (n = 1 or 2)................................................................. 4.40
Table 4.13 Winding n Negative-Sequence Time-Overcurrent Settings (n = 1, 2) ...................................... 4.41
Table 4.14 Neutral Overcurrent Settings................................................................................................ 4.41
Table 4.15 Neutral Time-Overcurrent Settings......................................................................................4.42
Table 4.16 Equations Associated With U.S. Curves..............................................................................4.43
Table 4.17 Equations Associated With IEC Curves............................................................................... 4.43
Table 4.18 RTD Settings........................................................................................................................4.46
Table 4.19 RTD Resistance Versus Temperature ...................................................................................4.47
Table 4.20 Undervoltage Settings .......................................................................................................... 4.48
Table 4.21 Overvoltage Settings ............................................................................................................ 4.49
Table 4.22 Volts Per Hertz Settings........................................................................................................ 4.53
Table 4.23 Power Element Settings........................................................................................................4.58
Table 4.24 Frequency Settings............................................................................................................... 4.60
Table 4.25 Demand Meter Settings........................................................................................................ 4.62
Table 4.26 Trip/Close Logic Settings.....................................................................................................4.67
Table 4.27 Enable Settings.....................................................................................................................4.70
Table 4.28 Latch Bits Equation Settings................................................................................................4.72
Table 4.29 SELOGIC Control Equation Operators (Listed in Operator Precedence) ............................. 4.74
Table 4.30 Other SELOGIC Control Equation Operators/Values............................................................4.77
Table 4.31 SELOGIC Variable Settings...................................................................................................4.77
Table 4.32 Counter Input/Output Description........................................................................................ 4.78
Table 4.33 Order of Precedence of the Control Inputs........................................................................... 4.79

vi List of Tables
SEL-787 Relay Instruction Manual Date Code 20150130
Table 4.34 Control Output Equations and Contact Behavior Settings................................................... 4.80
Table 4.35 General Global Settings .......................................................................................................4.81
Table 4.36 Setting Group Selection ....................................................................................................... 4.83
Table 4.37 Time and Date Management Settings .................................................................................. 4.83
Table 4.38 Breaker Failure Setting.........................................................................................................4.85
Table 4.39 Summary of Steps ................................................................................................................ 4.87
Table 4.40 Analog Input Card in Slot 3 .................................................................................................4.89
Table 4.41 Output Setting for a Card in Slot 3....................................................................................... 4.90
Table 4.42 Slot C Input Debounce Settings........................................................................................... 4.93
Table 4.43 Setting Change Disable Setting............................................................................................ 4.93
Table 4.44 Time-Synchronization Source Setting.................................................................................. 4.94
Table 4.45 Front-Panel Serial Port Settings........................................................................................... 4.94
Table 4.46 Ethernet Port Settings...........................................................................................................4.95
Table 4.47 Fiber-Optic Serial Port Settings ...........................................................................................4.95
Table 4.48 Rear-Panel Serial Port Settings ............................................................................................4.96
Table 4.49 Rear-Panel Serial Port (EIA-232/EIA-485) Settings............................................................ 4.96
Table 4.50 Rear-Panel DeviceNet Port Settings.....................................................................................4.97
Table 4.51 Display Point and Local Bit Default Settings ......................................................................4.98
Table 4.52 Front-Panel General Settings ............................................................................................... 4.98
Table 4.53 LCD Display Point Settings................................................................................................. 4.98
Table 4.54 Settings That Always, Never, or Conditionally Hide a Display Point ................................. 4.99
Table 4.55 Entries for the Four Strings................................................................................................4.100
Table 4.56 Binary Entry in the Name String Only...............................................................................4.102
Table 4.57 Analog Entry in the Name String Only..............................................................................4.102
Table 4.58 Entry in the Name String and the Alias Strings.................................................................4.103
Table 4.59 Example Settings and Displays..........................................................................................4.104
Table 4.60 Target LED Settings........................................................................................................... 4.107
Table 4.61 Pushbutton LED Settings ...................................................................................................4.107
Table 4.62 Auto-Removal Settings ......................................................................................................4.108
Table 4.63 SER Trigger Settings..........................................................................................................4.109
Table 4.64 Enable Alias Settings .........................................................................................................4.109
Table 4.65 SET R SER Alias Settings .................................................................................................4.109
Table 4.66 Event Report Settings......................................................................................................... 4.110
Table 4.67 Load Profile Settings..........................................................................................................4.110
Table 4.68 DNP Map Settings..............................................................................................................4.110
Table 4.69 User Map Register Settings ...............................................................................................4.111
Table 5.1 Measured Fundamental Meter Values....................................................................................5.3
Table 5.2 Measured Differential Meter Values ......................................................................................5.4
Table 5.3 Thermal Meter Values............................................................................................................ 5.5
Table 5.4 RTD Input Status Messages ................................................................................................... 5.5
Table 5.5 Maximum/Minimum Meter Values........................................................................................5.6
Table 5.6 RMS Meter Values ................................................................................................................. 5.8
Table 5.7 Demand Values..................................................................................................................... 5.10
Table 5.8 Measured Harmonic Meter Values....................................................................................... 5.10
Table 5.9 Synchrophasor Measured Values ......................................................................................... 5.11
Table 5.10 Through-Fault Element Settings .......................................................................................... 5.14
Table 5.11 Through-Fault Events Report Messages .............................................................................. 5.17
Table 6.1 Methods of Accessing Settings..............................................................................................6.1
Table 6.2 SHOW Command Options..................................................................................................... 6.4
Table 6.3 SET Command Options ......................................................................................................... 6.4
Table 6.4 SET Command Editing Keystrokes........................................................................................ 6.5
Table 6.5 SET Command Format...........................................................................................................6.5
Table 6.6 Setting Interdependency Error Messages...............................................................................6.6
Table SET.1 Port Number Settings That Must be Unique...................................................................SET.39
Table 7.1 SEL-787 Communications Port Interfaces............................................................................. 7.1
Table 7.2 EIA-232/EIA-485 Serial Port Pin Functions......................................................................... 7.7

viiList of Tables
Date Code 20150130 Instruction Manual SEL-787 Relay
Table 7.3 Protocols Supported on the Various Ports............................................................................7.10
Table 7.4 Settings Associated With SNTP...........................................................................................7.13
Table 7.5 Serial Port Automatic Messages ..........................................................................................7.15
Table 7.6 Command Response Header Definitions ............................................................................. 7.17
Table 7.7 Access Commands ............................................................................................................... 7.18
Table 7.8 ANALOG Command ........................................................................................................... 7.19
Table 7.9 ANALOG Command Format............................................................................................... 7.20
Table 7.10 COM Command...................................................................................................................7.22
Table 7.11 CONTROL Command ......................................................................................................... 7.22
Table 7.12 Three Remote Bit States....................................................................................................... 7.23
Table 7.13 COPY Command.................................................................................................................. 7.23
Table 7.14 COUNTER Command ......................................................................................................... 7.23
Table 7.15 Date Command.....................................................................................................................7.23
Table 7.16 EVENT Command (Event Reports)..................................................................................... 7.24
Table 7.17 EVENT Command Format...................................................................................................7.25
Table 7.18 FILE Command....................................................................................................................7.25
Table 7.19 GOOSE Command Variants.................................................................................................7.25
Table 7.20 GROUP Command...............................................................................................................7.27
Table 7.21 HELP Command .................................................................................................................. 7.28
Table 7.22 HISTORY Command ........................................................................................................... 7.28
Table 7.23 IDENTIFICATION Command.............................................................................................7.28
Table 7.24 IRI Command.......................................................................................................................7.29
Table 7.25 LDP Commands...................................................................................................................7.29
Table 7.26 LDP Command Parameters..................................................................................................7.30
Table 7.27 L_D Command (Load Firmware) ........................................................................................7.30
Table 7.28 LOO Command....................................................................................................................7.30
Table 7.29 Meter Command...................................................................................................................7.31
Table 7.30 Meter Command Parameters................................................................................................ 7.31
Table 7.31 Meter Class...........................................................................................................................7.32
Table 7.32 PASSWORD Command.......................................................................................................7.33
Table 7.33 PAS Command Format.........................................................................................................7.33
Table 7.34 Factory-Default Passwords for Access Levels 1, 2, and C...................................................7.33
Table 7.35 Valid Password Characters................................................................................................... 7.33
Table 7.36 PUL OUTnnn Command ..................................................................................................... 7.34
Table 7.37 QUIT Command................................................................................................................... 7.35
Table 7.38 R_S Command (Restore Factory Defaults).......................................................................... 7.35
Table 7.39 SER Command (Sequential Events Recorder Report)......................................................... 7.35
Table 7.40 SER Command Format ........................................................................................................ 7.35
Table 7.41 SER D Command.................................................................................................................7.36
Table 7.42 SET Command (Change Settings) ....................................................................................... 7.36
Table 7.43 SET Command Format.........................................................................................................7.36
Table 7.44 SET Command Editing Keystrokes...................................................................................... 7.37
Table 7.45 SHOW Command (Show/View Settings)............................................................................. 7.37
Table 7.46 SHOW Command Format....................................................................................................7.37
Table 7.47 STATUS Command (Relay Self-Test Status)....................................................................... 7.40
Table 7.48 STATUS Command Report and Definitions ........................................................................ 7.40
Table 7.49 SUMMARY Command........................................................................................................7.41
Table 7.50 TARGET Command (Display Relay Word Bit Status)........................................................ 7.42
Table 7.51 TARGET Command Format ................................................................................................7.42
Table 7.52 Front-Panel LEDs and the TAR 0 Command.......................................................................7.42
Table 7.53 TIME Command (View/Change Time)................................................................................7.43
Table 7.54 TRIGGER Command (Trigger Event Report)..................................................................... 7.43
Table 7.55 VEC Command .................................................................................................................... 7.44
Table 8.1 Front-Panel Automatic Messages (FP_AUTO := OVERRIDE) ............................................ 8.3
Table 8.2 Front-Panel Pushbutton Functions ......................................................................................... 8.5
Table 8.3 Possible Warning Conditions (Flashing TRIP LED) ...........................................................8.13

viii List of Tables
SEL-787 Relay Instruction Manual Date Code 20150130
Table 8.4 SEL-787 Front-Panel Operator Control Functions .............................................................. 8.15
Table 9.1 Event Types............................................................................................................................9.4
Table 9.2 Analog Event Report Columns Definitions............................................................................9.8
Table 9.3 Digital Event Report Column Definitions............................................................................ 9.15
Table 9.4 Differential Event Report Column Definitions for Analog Quantities........................................ 9.20
Table 9.5 Differential Event Report Digital Column Definitions for Protection, Control, and
I/O Elements..................................................................................................................... 9.20
Table 10.1 Resultant Scale Factors for Inputs........................................................................................10.2
Table 10.2 Serial Port Commands That Clear Relay Data Buffers........................................................10.6
Table 10.3 CTR1 Phase Current Measuring Accuracy .......................................................................... 10.7
Table 10.4 CTR2 Phase Current Measuring Accuracy .......................................................................... 10.8
Table 10.5 Power Quantity Accuracy—Wye Voltages...........................................................................10.9
Table 10.6 Power Quantity Accuracy—Delta Voltages....................................................................... 10.10
Table 10.7 Periodic Relay Checks .......................................................................................................10.10
Table 10.8 Relay Self-Tests.................................................................................................................. 10.11
Table 10.9 Troubleshooting..................................................................................................................10.15
Table A.1 200 Series Firmware Revision History ................................................................................. A.1
Table A.2 100 Series Firmware Revision History ................................................................................. A.5
Table A.3 DeviceNet Card Versions ...................................................................................................... A.7
Table A.4 EDS File Compatibility......................................................................................................... A.7
Table A.5 SEL-787 ICD File Revision History ..................................................................................... A.8
Table A.6 Instruction Manual Revision History.................................................................................. A.10
Table C.1 Supported Serial Command Sets............................................................................................C.1
Table C.2 Compressed ASCII Commands .............................................................................................C.2
Table C.3 SEL Communications Processors Protocol Interfaces...........................................................C.4
Table C.4 SEL Communications Processor Port 1 Settings ...................................................................C.7
Table C.5 SEL Communications Processor Data Collection Automessages..........................................C.7
Table C.6 SEL Communications Processor Port 1 Automatic Messaging Settings...............................C.8
Table C.7 SEL Communications Processor Port 1 Region Map ............................................................C.8
Table C.8 Communications Processor METER Region Map.................................................................C.9
Table C.9 Communications Processor TARGET Region Map.............................................................C.10
Table C.10 Communications Processor DEMAND Region Map...........................................................C.11
Table D.1 DNP3 Implementation Levels............................................................................................... D.1
Table D.2 Selected DNP3 Function Codes............................................................................................D.2
Table D.3 DNP3 Access Methods.......................................................................................................... D.4
Table D.4 TCP/UDP Selection Guidelines............................................................................................D.6
Table D.5 DNP3 Access Methods.......................................................................................................... D.6
Table D.6 SEL-787 Event Buffer Capacity............................................................................................ D.9
Table D.7 Port DNP3 Protocol Settings............................................................................................... D.11
Table D.8 Serial Port DNP3 Modem Settings...................................................................................... D.12
Table D.9 SEL-787 DNP Object List................................................................................................... D.13
Table D.10 DNP3 Reference Data Map................................................................................................. D.18
Table D.11 DNP3 Default Data Map..................................................................................................... D.19
Table D.12 SEL-787 Object 12 Control Operations.............................................................................. D.22
Table D.13 Sample Custom DNP3 AI Map........................................................................................... D.26
Table E.1 Modbus Query Fields.............................................................................................................E.2
Table E.2 SEL-787 Modbus Function Codes.........................................................................................E.2
Table E.3 SEL-787 Modbus Exception Codes.......................................................................................E.3
Table E.4 01h Read Discrete Output Coil Status Command..................................................................E.3
Table E.5 Responses to 01h Read Discrete Output Coil Query Errors ..................................................E.4
Table E.6 02h Read Input Status Command...........................................................................................E.4
Table E.7 02h SEL-787 Inputs ...............................................................................................................E.5
Table E.8 Responses to 02h Read Input Query Errors ...........................................................................E.8
Table E.9 03h Read Holding Register Command...................................................................................E.8
Table E.10 Responses to 03h Read Holding Register Query Errors ........................................................E.8
Table E.11 04h Read Input Register Command.......................................................................................E.9