Table Of Contents - General Measure GM8802F-2 User Manual

1 General description ........................................................................................2
1.1 System sketch map .................................................................................... 3
1.2 Specification ............................................................................................... 4
2 Wiring .............................................................................................................. 5
2.1 Installation .................................................................................................. 5
2.2 Power connection....................................................................................... 6
2.3 Load cell connection................................................................................... 6
2.4 Serial port connection................................................................................. 7
3 Theory instruction .......................................................................................... 8
3.1 Initialization................................................................................................. 8
3.2 Collecting weighing data............................................................................. 8
4 Parameter table............................................................................................... 9
4.1 Calibration parameters ............................................................................... 9
4.2 Operation parameters................................................................................. 9
5 Serial port communication .......................................................................... 10
5.1 Parameters............................................................................................... 10
5.1.1 Configuring address ........................................................................... 10
5.1.2 Configuring communication parameters............................................. 11
5.2 Communication protocols ........................................................................12
5.2.1 GM-SP1 protocol ..............................................................................12
5.2.1.1 Parameters code table ................................................................... 13
5.2.1.2 Read operatioin ..............................................................................14
5.2.1.3 Write operation ...............................................................................15
5.2.1.4 Calibration ....................................................................................... 17
5.2.1.5 Optional operation ..........................................................................18
5.2.1.6 Error message solution .................................................................... 19
5.2.2 Modbus communication ..................................................................... 20
5.2.2.1 Modbus address.............................................................................. 20
5.2.2.2 Modbus communication mode ........................................................ 24
5.2.2.3 Function code .................................................................................. 25
5.2.2.4 Error communication message........................................................ 30
6 Dimension ..................................................................................................... 31
6.1 Outline ...................................................................................................... 31
6.2 Hanging mount and hole size ................................................................... 32
GM8802-F2110101
GM8802F-2 Field Mounting Transmitter
Table
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