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MVI56E-MNETR ♦ ControlLogix Platform
Contents
Modbus TCP/IP Interface Module with Reduced Data Block
User Manual
ProSoft Technology, Inc.
Page 7 of 175
June 14, 2011
5.5
Modbus Protocol Specification .............................................................................. 132
5.5.1
Commands Supported by the Module ................................................................... 132
5.5.2
Read Coil Status (Function Code 01) ................................................................... 133
5.5.3
Read Input Status (Function Code 02) .................................................................. 134
5.5.4
Read Holding Registers (Function Code 03) ........................................................ 135
5.5.5
Read Input Registers (Function Code 04) ............................................................. 136
5.5.6
Force Single Coil (Function Code 05) ................................................................... 137
5.5.7
Preset Single Register (Function Code 06) ........................................................... 138
5.5.8
Diagnostics (Function Code 08) ............................................................................ 139
5.5.9
Force Multiple Coils (Function Code 15) ............................................................... 141
5.5.10
Preset Multiple Registers (Function Code 16) ...................................................... 142
5.5.11
Modbus Exception Responses .............................................................................. 143
5.6
Using the Optional Add-On Instruction Rung Import ............................................. 146
5.6.1
Before You Begin .................................................................................................. 146
5.6.2
Overview................................................................................................................ 146
5.6.3
Installing the Rung Import with Optional Add-On Instruction ................................ 147
5.6.4
Reading the Ethernet Settings from the Module ................................................... 150
5.6.5
Writing the Ethernet Settings to the Module.......................................................... 152
5.6.6
Reading the Clock Value from the Module ............................................................ 153
5.6.7
Writing the Clock Value to the Module .................................................................. 154
5.7
Adding the Module to an Existing Project ............................................................. 155
5.8
Using the Sample Program ................................................................................... 158
5.8.1
Opening the Sample Program in RSLogix ............................................................ 158
5.8.2
Choosing the Controller Type ............................................................................... 160
5.8.3
Selecting the Slot Number for the Module ............................................................ 161
5.8.4
Downloading the Sample Program to the Processor ............................................ 162
6
Support, Service & Warranty
163
Contacting Technical Support ......................................................................................................... 163
6.1
Return Material Authorization (RMA) Policies and Conditions.............................. 165
6.1.1
Returning Any Product .......................................................................................... 165
6.1.2
Returning Units Under Warranty ........................................................................... 165
6.1.3
Returning Units Out of Warranty ........................................................................... 166
6.2
LIMITED WARRANTY ........................................................................................... 166
6.2.1
What Is Covered By This Warranty ....................................................................... 167
6.2.2
What Is Not Covered By This Warranty ................................................................ 167
6.2.3
Disclaimer Regarding High Risk Activities ............................................................ 168
6.2.4
Intellectual Property Indemnity .............................................................................. 168
6.2.5
Disclaimer of all Other Warranties ........................................................................ 169
6.2.6
Limitation of Remedies ** ...................................................................................... 170
6.2.7
Time Limit for Bringing Suit ................................................................................... 170
6.2.8
No Other Warranties ............................................................................................. 170
6.2.9
Allocation of Risks ................................................................................................. 170
6.2.10
Controlling Law and Severability ........................................................................... 171
Index
173