ProSoft MVI56E-MCMR - Page 6

Contents MVI56E-MCMR ♦ ControlLogix Platform
User Manual Modbus Communication Module with Reduced Data Block
Page 6 of 223 ProSoft Technology, Inc.
2.7 Downloading the Project to the Module .................................................................. 92
2.7.1 Using CIPconnect
®
to Connect to the Module ........................................................ 94
2.7.2 Using RSWho to Connect to the Module .............................................................. 104
3 Verify Communication 105
3.1 Verify Master Communications ............................................................................. 106
3.1.1 Status Data Definition as a Master ....................................................................... 106
3.1.2 Command Error Codes ......................................................................................... 108
3.1.3 MCM Status Data ................................................................................................. 112
3.2 Verify Slave Communications ............................................................................... 113
3.2.1 Status Data Definition as a Slave ......................................................................... 114
4 Ladder Logic 115
4.1 MVI56E-MCMR User Defined Data Types ........................................................... 116
4.1.1 Module Status Data and Variables (MCMRModuleDef) ....................................... 116
5 Diagnostics and Troubleshooting 121
5.1 Ethernet LED Indicators ........................................................................................ 122
5.1.1 Scrolling LED Status Indicators ............................................................................ 122
5.1.2 Non-Scrolling LED Status Indicators .................................................................... 123
5.2 Using the Diagnostics Menu in ProSoft Configuration Builder ............................. 124
5.2.1 Connect to the Module’s Web Page ..................................................................... 127
5.2.2 The Diagnostics Menu .......................................................................................... 128
5.2.3 Monitoring Backplane Information ........................................................................ 128
5.2.4 Monitoring Database Information.......................................................................... 129
5.2.5 Monitoring General Information ............................................................................ 130
5.2.6 Monitoring Modbus Port Information .................................................................... 130
5.2.7 Data Analyzer ....................................................................................................... 131
5.3 Reading Status Data from the Module ................................................................. 135
5.3.1 Required Hardware ............................................................................................... 135
5.3.2 Viewing the Error Status Table ............................................................................. 135
5.4 Communication Error Codes ................................................................................ 136
5.4.1 Clearing a Fault Condition .................................................................................... 138
5.4.2 Troubleshooting .................................................................................................... 139
6 Reference 141
6.1 About the Modbus Protocol .................................................................................. 142
6.2 Specifications ........................................................................................................ 143
6.2.1 General Specifications .......................................................................................... 143
6.2.2 Hardware Specifications ....................................................................................... 144
6.2.3 General Specifications - Modbus Master/Slave .................................................... 145
6.2.4 Functional Specifications ...................................................................................... 145
6.3 Functional Overview ............................................................................................. 146
6.3.1 Processor/Module Data Transfers ........................................................................ 146
6.3.2 Normal Data Transfer Blocks ................................................................................ 149
6.3.3 Special Function Blocks ........................................................................................ 150
6.3.4 Master Driver ........................................................................................................ 166
6.3.5 Slave Driver .......................................................................................................... 168
6.4 Cable Connections ............................................................................................... 169