ProSoft Technology MVI56E-MCMR - Manual (Page 6)

Contents MVI56E-MCMR ♦ ControlLogix Platform
User Manual Modbus Communication Module with Reduced Data Block
Page 6 of 225 ProSoft Technology, Inc.
May 13, 2014
2.4.4 Floating-Point Data Handling (Modbus Slave) ....................................................... 87
2.5 Ethernet Configuration ............................................................................................ 90
2.6 Connecting Your PC to the Module's Ethernet Port ............................................... 91
2.6.1 Setting Up a Temporary IP Address ....................................................................... 91
2.7 Downloading the Project to the Module .................................................................. 95
2.7.1 Using CIPconnect
®
to Connect to the Module ........................................................ 96
2.7.2 Using RSWho to Connect to the Module .............................................................. 106
3 Verify Communication 107
3.1 Verify Master Communications ............................................................................. 108
3.1.1 Status Data Definition as a Master ....................................................................... 108
3.1.2 Command Error Codes ......................................................................................... 110
3.1.3 MCM Status Data ................................................................................................. 114
3.2 Verify Slave Communications ............................................................................... 115
3.2.1 Status Data Definition as a Slave ......................................................................... 116
4 Ladder Logic 117
4.1 MVI56E-MCMR User Defined Data Types ........................................................... 118
4.1.1 Module Status Data and Variables (MCMRModuleDef) ....................................... 118
5 Diagnostics and Troubleshooting 123
5.1 Ethernet LED Indicators ........................................................................................ 124
5.1.1 Scrolling LED Status Indicators ............................................................................ 124
5.1.2 Non-Scrolling LED Status Indicators .................................................................... 125
5.2 Using the Diagnostics Menu in ProSoft Configuration Builder ............................. 126
5.2.1 Connect to the Module’s Web Page ..................................................................... 129
5.2.2 The Diagnostics Menu .......................................................................................... 130
5.2.3 Monitoring Backplane Information ........................................................................ 130
5.2.4 Monitoring Database Information.......................................................................... 131
5.2.5 Monitoring General Information ............................................................................ 132
5.2.6 Monitoring Modbus Port Information .................................................................... 132
5.2.7 Data Analyzer ....................................................................................................... 133
5.3 Reading Status Data from the Module ................................................................. 137
5.3.1 Required Hardware ............................................................................................... 137
5.3.2 Viewing the Error Status Table ............................................................................. 137
5.4 Communication Error Codes ................................................................................ 138
5.4.1 Clearing a Fault Condition .................................................................................... 140
5.4.2 Troubleshooting .................................................................................................... 141
6 Reference 143
6.1 About the Modbus Protocol .................................................................................. 144
6.2 Specifications ........................................................................................................ 145
6.2.1 General Specifications .......................................................................................... 145
6.2.2 Hardware Specifications ....................................................................................... 146
6.2.3 General Specifications - Modbus Master/Slave .................................................... 147
6.2.4 Functional Specifications ...................................................................................... 147
6.3 Functional Overview ............................................................................................. 148
6.3.1 Processor/Module Data Transfers ........................................................................ 148