West Control Solutions 8700+ - Manual (Page 10)

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- DIN Controllers & Indicators - Product Manual
59305, Issue 7
– March 2014 Page 5
Device Addressing .................................................................................................................................. 123
Supported Modbus Functions ................................................................................................................. 123
Function Descriptions ............................................................................................................................. 123
Read Coil/Input Status (Function 01 / 02) ......................................................................................... 124
Read Holding/Input Registers (Function 03 / 04) .............................................................................. 124
Force Single Coil (Function 05) ......................................................................................................... 125
Pre-Set Single Register (Function 06) ............................................................................................... 125
Loopback Diagnostic Test (Function 08) ........................................................................................... 125
Pre-Set Multiple Registers (Function 10 Hex) ................................................................................... 126
Exception Responses ........................................................................................................................ 126
14 ASCII Communications ...................................................................................................... 127
Physical Layer ......................................................................................................................................... 127
Device Addressing .................................................................................................................................. 127
Session Layer ......................................................................................................................................... 127
Type 1 Message ................................................................................................................................ 128
Type 2 Message ................................................................................................................................ 129
Type 3 Message ................................................................................................................................ 129
Type 4 Message ................................................................................................................................ 130
Error Response ....................................................................................................................................... 130
15 Calibration Mode ................................................................................................................ 131
Equipment Required For Checking or Calibrating the Universal Input ................................................... 131
Calibration Check .................................................................................................................................... 131
Recalibration Procedure ......................................................................................................................... 132
16 Appendix 1 – Glossary ....................................................................................................... 133
Active Setpoint Type: Controller Definition .......................................................................................... 133
Actual Setpoint Type: Controller Definition ......................................................................................... 133
Alarm Hysteresis Type: General Parameter ....................................................................................... 134
Alarm Operation Type: General Definition ........................................................................................... 135
Alarm Inhibit Type: General Parameter ............................................................................................... 136
Annunciator Type: Limit Controller Definition ...................................................................................... 136
Automatic Reset (Integral) Type: Controller Tuning Parameter ......................................................... 136
Auto Pre-Tune Type: Controller Tuning Parameter ............................................................................ 136
Auxiliary Input Type: General Definition ............................................................................................. 136
Band Alarm 1 Value Type: General Parameter ................................................................................... 136
Band Alarm 2 Value Type: General Parameter ................................................................................... 136
Bias (Manual Reset) Type: Controller Tuning Parameter .................................................................... 137
Bumpless Transfer Type: Controller Definition .................................................................................... 137
Boundless VMD Control Type: VMD Controller Definition ................................................................... 137
Cascade Control Type: Controller Definition ....................................................................................... 137
Communications Write Enable Type: General Definition .................................................................... 138