MVI56E-MCMR ♦ ControlLogix Platform Contents
Modbus Communication Module with Reduced Data Block User Manual
ProSoft Technology, Inc. Page 7 of 223
6.4.1 Ethernet Cable Specifications ............................................................................... 169
6.4.2 Ethernet Cable Configuration ................................................................................ 170
6.4.3 Ethernet Performance ........................................................................................... 170
6.4.4 RS-232 Application Port(s) .................................................................................... 171
6.4.5 RS-422 .................................................................................................................. 173
6.4.6 RS-485 Application Port(s) .................................................................................... 173
6.4.7 DB9 to RJ45 Adaptor (Cable 14) .......................................................................... 174
6.5 MVI56E-MCMR Status Data Definition ................................................................. 175
6.6 Modbus Protocol Specification .............................................................................. 177
6.6.1 Commands Supported by the Module ................................................................... 177
6.6.2 Read Coil Status (Function Code 01) ................................................................... 178
6.6.3 Read Input Status (Function Code 02) .................................................................. 179
6.6.4 Read Holding Registers (Function Code 03) ........................................................ 180
6.6.5 Read Input Registers (Function Code 04) ............................................................. 181
6.6.6 Force Single Coil (Function Code 05) ................................................................... 182
6.6.7 Preset Single Register (Function Code 06) ........................................................... 183
6.6.8 Diagnostics (Function Code 08) ............................................................................ 184
6.6.9 Force Multiple Coils (Function Code 15) ............................................................... 185
6.6.10 Preset Multiple Registers (Function Code 16) ...................................................... 186
6.6.11 Modbus Exception Responses .............................................................................. 187
6.7 Using the Optional Add-On Instruction Rung Import ............................................. 190
6.7.1 Before You Begin .................................................................................................. 190
6.7.2 Overview................................................................................................................ 190
6.7.3 Installing the Rung Import with Optional Add-On Instruction ................................ 191
6.7.4 Reading the Ethernet Settings from the Module ................................................... 196
6.7.5 Writing the Ethernet Settings to the Module.......................................................... 197
6.7.6 Reading the Clock Value from the Module ............................................................ 199
6.7.7 Writing the Clock Value to the Module .................................................................. 200
6.8 Using the Sample Program - RSLogix 5000 Version 15 and earlier ..................... 201
6.8.1 Adding the Sample Ladder to an Existing Application .......................................... 201
6.8.2 Add the Module to the Project ............................................................................... 201
6.8.3 Copying the User Defined Data Types .................................................................. 204
6.8.4 Copy Sample Controller Tags ............................................................................... 204
6.8.5 Add the Ladder Logic ............................................................................................ 205
6.8.6 Ladder Logic - RSLogix Version 15 and Lower .................................................... 206
7 Support, Service & Warranty 217
7.1 Contacting Technical Support ............................................................................... 217
7.2 Warranty Information ............................................................................................. 219
Index 221