ProSoft Technology MVI69L-MBTCP - Manual (Page 6)

Contents MVI69L-MBTCP ♦ CompactLogix Platform
User Manual Communication Module
Page 6 of 152 ProSoft Technology, Inc.
January 6, 2014
4.2 Normal Data Transfer ............................................................................................. 69
4.2.1 Write Block: Request from the Processor to the Module ........................................ 69
4.2.2 Read Block: Response from the Module to the Processor ..................................... 69
4.2.3 Read and Write Block Transfer Sequences ........................................................... 70
4.3 Data Flow Between the Module and Processor ..................................................... 71
4.3.1 Server Driver Overview ........................................................................................... 71
4.3.2 Client Driver Overview ............................................................................................ 73
5 Using Controller Tags 75
5.1 Controller Tags ....................................................................................................... 76
5.1.1 MVI69L-MBTCP Controller Tags ............................................................................ 76
5.2 User-Defined Data Types (UDTs)........................................................................... 78
5.2.1 MVI69L-MBTCP User-Defined Data Types ............................................................ 78
5.3 Controller Tag Overview ......................................................................................... 80
5.3.1 MBTCP.CONFIG .................................................................................................... 80
5.3.2 MBTCP.DATA ......................................................................................................... 80
5.3.3 MBTCP.CONTROL ................................................................................................. 81
5.3.4 MBTCP.STATUS .................................................................................................... 86
5.3.5 MBTCP.UTIL ........................................................................................................... 89
6 Diagnostics and Troubleshooting 91
6.1 Ethernet LED Indicators .......................................................................................... 92
6.2 LED Status Indicators ............................................................................................. 92
6.2.2 Troubleshooting the LEDs ...................................................................................... 93
6.3 Connecting the PC to the Module's Ethernet Port .................................................. 94
6.3.1 Setting Up a Temporary IP Address ....................................................................... 94
6.4 Connecting to the Diagnostics Menu in ProSoft Configuration Builder .................. 97
6.4.1 Diagnostics Menu ................................................................................................... 99
6.4.2 Monitoring General Information .............................................................................. 99
6.4.3 Monitoring Network Configuration Information ..................................................... 100
6.4.4 Monitoring Backplane Status Information ............................................................. 100
6.4.5 Modbus Server Driver Information ........................................................................ 101
6.4.6 Monitoring Data Values in the Module’s Database............................................... 102
6.4.7 Modbus Client Driver Information ......................................................................... 102
6.5 Communication Error Codes ................................................................................ 103
6.6 Connecting to the Module’s Webpage .................................................................. 104
7 Reference 105
7.1 Product Specifications .......................................................................................... 106
7.1.1 General Specifications - Modbus Client/Server .................................................... 106
7.1.2 Hardware Specifications ....................................................................................... 107
7.2 About the Modbus Protocol .................................................................................. 108
7.2.1 Commands Supported by the Module .................................................................. 109
7.2.2 Read Coil Status (Function Code 01) ................................................................... 109
7.2.3 Read Input Status (Function Code 02) ................................................................. 110
7.2.4 Read Holding Registers (Function Code 03) ........................................................ 112
7.2.5 Read Input Registers (Function Code 04) ............................................................ 113
7.2.6 Force Single Coil (Function Code 05) .................................................................. 113
7.2.7 Preset Single Register (Function Code 06) .......................................................... 115
7.2.8 Diagnostics (Function Code 08) ........................................................................... 115