Operating instructions

Contents PTQ-MCM ♦ Quantum / Unity Platform
Modbus Communication Module
Page 6 of 139 ProSoft Technology, Inc.
April 29, 2008
7.1.2 The Configuration/Debug Menu ................................................................................................ 80
7.1.3 Main Menu................................................................................................................................. 82
7.1.4 Modbus Database View ............................................................................................................84
7.1.5 Backplane Menu........................................................................................................................ 86
7.1.6 Data Analyzer............................................................................................................................ 87
7.1.7 Data Analyzer Tips .................................................................................................................... 89
7.1.8 Protocol Serial Menu ................................................................................................................ 91
7.1.9 Master Command Error List Menu ............................................................................................ 93
7.2 LED Status Indicators............................................................................................................... 94
7.3 Error Status Table .................................................................................................................... 95
7.3.1 Standard Modbus Protocol Errors ............................................................................................. 95
7.3.2 Module Communication Error Codes ........................................................................................ 95
7.3.3 Command List Entry Errors .......................................................................................................95
8 REFERENCE.................................................................................................................................. 97
8.1 Product Specifications .............................................................................................................. 97
8.1.1 Features and Benefits ............................................................................................................... 97
8.1.2 General Specifications .............................................................................................................. 97
8.1.3 Hardware Specifications............................................................................................................ 98
8.1.4 Functional Specifications........................................................................................................... 98
8.2 Functional Overview ................................................................................................................. 99
8.2.1 Backplane Data Transfer........................................................................................................... 99
8.2.2 Special Functions .................................................................................................................... 100
8.2.3 Event Command...................................................................................................................... 100
8.2.4 Command Control Block.......................................................................................................... 101
8.2.5 Warm Boot .............................................................................................................................. 104
8.2.6 Cold Boot................................................................................................................................. 104
8.2.7 Pass-Thru Control Blocks........................................................................................................ 105
8.3 Status Data Definition............................................................................................................. 110
8.3.1 Status Data Block Structure .................................................................................................... 110
8.4 Configuration Data.................................................................................................................. 112
8.4.1 Port 1 Setup ............................................................................................................................ 112
8.4.2 Port 2 Setup ............................................................................................................................ 113
8.4.3 Port 1 Commands ................................................................................................................... 113
8.4.4 Port 2 Commands ................................................................................................................... 114
8.5 Port Specific Information ........................................................................................................ 114
8.5.1 Serial Port Details.................................................................................................................... 114
8.5.2 RS-232 Configuration/Debug Port........................................................................................... 114
8.6 Modbus Protocol Specification ............................................................................................... 114
8.6.1 Read Output Status (Function Code 01) ................................................................................. 114
8.6.2 Read Input Status (Function Code 02) .................................................................................... 115
8.6.3 Read Holding Registers (Function Code 03) ........................................................................... 116
8.6.4 Read Input Registers (Function Code 04) ............................................................................... 117
8.6.5 Force Single Coil (Function Code 05) ..................................................................................... 118
8.6.6 Preset Single Register (Function Code 06) ............................................................................. 119
8.6.7 Diagnostics (Function Code 08) .............................................................................................. 119
8.6.8 Force Multiple Coils (Function Code 15) ................................................................................. 122
8.6.9 Preset Multiple Registers (Function Code 16)......................................................................... 122
8.6.10 MODBUS Exception Responses ............................................................................................. 123
8.7 Frequently Asked Questions .................................................................................................. 125
8.7.1 What kind of data transfer rates can I expect between the PLC and the module? .................. 125
8.7.2 Is a .MDC available for configuration of the Module? .............................................................. 125
8.7.3 Does the module work in a remote rack? ................................................................................ 125
8.7.4 Can I use the module in a hot backup system?...................................................................... 125
9 SUPPORT, SERVICE & WARRANTY ......................................................................................... 127
9.1 How to Contact Us: Sales and Support.................................................................................. 128
9.2 Return Material Authorization (RMA) Policies and Conditions............................................... 128
9.2.1 All Product Returns ................................................................................................................. 129
9.3 Procedures for Return of Units Under Warranty .................................................................... 129
9.4 Procedures for Return of Units Out of Warranty .................................................................... 130