ProSoft Technology MVI69L-MBS - Manual (Page 6)

Contents MVI69L-MBS ♦ CompactLogix Platform
User Manual Communication Module
Page 6 of 154 ProSoft Technology, Inc.
January 6, 2014
4.3.1 Write Block: Request from the Processor to the Module ........................................ 70
4.3.2 Read Block: Response from the Module to the Processor ..................................... 70
4.3.3 Read and Write Block Transfer Sequences ........................................................... 71
4.4 Data Flow Between the Module and Processor ..................................................... 72
4.4.1 Slave Mode ............................................................................................................. 72
4.4.2 Master Mode ........................................................................................................... 74
5 Using Controller Tags 77
5.1 Controller Tags ....................................................................................................... 78
5.1.1 MVI69L-MBS Controller Tags ................................................................................. 78
5.2 User-Defined Data Types (UDTs)........................................................................... 80
5.2.1 MVI69L-MBS User-Defined Data Types ................................................................. 80
5.3 Using Controller Tags ............................................................................................. 81
5.4 Controller Tag Overview ......................................................................................... 82
5.4.1 MBS.CONFIG ......................................................................................................... 82
5.4.2 MBS.DATA .............................................................................................................. 82
5.4.3 MBS.CONTROL...................................................................................................... 83
5.4.4 MBS.STATUS ......................................................................................................... 87
5.4.5 MBS.UTIL ............................................................................................................... 88
6 Diagnostics and Troubleshooting 89
6.1 Ethernet LED Indicators .......................................................................................... 90
6.2 LED Status Indicators ............................................................................................. 90
6.2.2 Troubleshooting the LEDs ...................................................................................... 91
6.3 Connecting the PC to the Module's Ethernet Port .................................................. 92
6.3.1 Setting Up a Temporary IP Address ....................................................................... 93
6.4 Using the Diagnostics Menu in ProSoft Configuration Builder ............................... 95
6.4.1 Diagnostics Menu ................................................................................................... 97
6.4.2 Monitoring General Information .............................................................................. 97
6.4.3 Monitoring Network Configuration Information ....................................................... 98
6.4.4 Monitoring Backplane Information .......................................................................... 98
6.4.5 Port 1 Module Information ...................................................................................... 99
6.4.6 Monitoring Data Values in the Module’s Database............................................... 100
6.5 Communication Error Codes ................................................................................ 101
6.6 Connecting to the Module’s Web Page ................................................................ 102
7 Reference 103
7.1 Product Specifications .......................................................................................... 104
7.1.1 General Specifications - Modbus Master/Slave .................................................... 104
7.1.2 Hardware Specifications ....................................................................................... 105
7.2 About the Modbus Protocol .................................................................................. 106
7.2.1 Function Codes Supported by the Module ........................................................... 107
7.2.2 Read Coil Status (Function Code 01) ................................................................... 107
7.2.3 Read Input Status (Function Code 02) ................................................................. 108
7.2.4 Read Holding Registers (Function Code 03) ........................................................ 109
7.2.5 Read Input Registers (Function Code 04) ............................................................ 110
7.2.6 Force Single Coil (Function Code 05) .................................................................. 111
7.2.7 Preset Single Register (Function Code 06) .......................................................... 112
7.2.8 Diagnostics (Function Code 08) ........................................................................... 113
7.2.9 Force Multiple Coils (Function Code 15) .............................................................. 115