ProSoft Technology MVI71-MCM - Manual (Page 6)

MVI71-MCM ♦ PLC Platform Contents
Modbus Communication Module
Page 6 of 111 ProSoft Technology, Inc.
December 28, 2007
5.2.8 Slave Status Blocks ......................................................................................................................67
5.2.9 Command Control Blocks .............................................................................................................69
5.2.10 Pass-Through Control Blocks........................................................................................................74
5.2.11 Remote Command Control............................................................................................................75
5.2.12 Data Flow Between MVI71-MCM Module and PLC Processor .....................................................76
5.3 Cable Connections .................................................................................................................................79
5.3.1 RS-232 Configuration/Debug Port.................................................................................................79
5.3.2 RS-232..........................................................................................................................................81
5.3.3 RS-422..........................................................................................................................................83
5.3.4 RS-485..........................................................................................................................................84
5.3.5 DB9 to RJ45 Adaptor (Cable 14)...................................................................................................84
5.4 MVI71-MCM Database Definition ...........................................................................................................85
5.5 MVI71-MCM Status Data Definition ........................................................................................................85
5.6 MVI71-MCM Configuration Data Definition.............................................................................................87
5.6.1 Backplane Setup ...........................................................................................................................87
5.6.2 Port 1 Setup ..................................................................................................................................88
5.6.3 Port 2 Setup ..................................................................................................................................90
5.6.4 Port 1 Commands .........................................................................................................................93
5.6.5 Port 2 Commands .........................................................................................................................93
5.6.6 Command Control .........................................................................................................................94
5.7 MVI71-MCM Command Error Codes......................................................................................................94
5.7.1 Standard Modbus Protocol Errors .................................................................................................94
5.7.2 Module Communication Error Codes ............................................................................................94
5.7.3 Command List Entry Errors ...........................................................................................................94
5.8 Configuration Error Codes ......................................................................................................................95
5.8.1 BTR...............................................................................................................................................95
5.9 Frequently Asked Questions...................................................................................................................96
5.9.1 What is the MVI71-MCM? .............................................................................................................96
5.9.2 Why does the module have to break down the data in blocks of 64 words? .................................96
5.9.3 How do I read and write data between the internal MVI71-MCM database and the PLC?............96
5.9.4 What is the procedure to change the module's configuration?......................................................97
5.9.5 How do I set a Port Modbus Master command? ...........................................................................97
5.9.6 The Modbus Master Command is not working, what should I do? ................................................97
5.9.7 What is the Pass-Through feature?...............................................................................................97
5.9.8 How can I check a Slave's status connected to an MVI71-MCM Master port? .............................97
5.9.9 Should I use the sample ladder logic? ..........................................................................................98
5.9.10 Is it possible to control the Master Modbus Commands from ladder logic? ..................................98
5.9.11 How is the MVI71-MCM database divided into Discrete Output, Discrete Input, Input Registers,
and Holding Registers? ................................................................................................................................98
6 SUPPORT, SERVICE & WARRANTY.........................................................................................................99
6.1 How to Contact Us: Sales and Support ................................................................................................100
6.2 Return Material Authorization (RMA) Policies and Conditions..............................................................101
6.2.1 All Product Returns .....................................................................................................................101
6.3 Procedures for Return of Units Under Warranty ...................................................................................101
6.4 Procedures for Return of Units Out of Warranty ...................................................................................102
6.4.1 Un-repairable Units .....................................................................................................................102
6.4.2 Purchasing Warranty Extension ..................................................................................................103
6.5 LIMITED WARRANTY ..........................................................................................................................103
6.5.1 What Is Covered By This Warranty .............................................................................................103
6.5.2 What Is Not Covered By This Warranty ......................................................................................104
6.5.3 DISCLAIMER REGARDING HIGH RISK ACTIVITIES................................................................105
6.5.4 DISCLAIMER OF ALL OTHER WARRANTIES...........................................................................105
6.5.5 LIMITATION OF REMEDIES**....................................................................................................105
6.5.6 Time Limit for Bringing Suit .........................................................................................................105
6.5.7 No Other Warranties ...................................................................................................................106
6.5.8 Intellectual Property ....................................................................................................................106
6.5.9 Additional Restrictions Relating To Software And Other Intellectual Property ............................106
6.5.10 Allocation of risks ........................................................................................................................107
6.5.11 Controlling Law and Severability .................................................................................................107
INDEX .................................................................................................................................................................109