Contents
1 Set up of the controller...........................................................................................1
2 System Configuration ............................................................................................2
2.1 RS485 Communication System.................................................................2
2.2 RS232 Communication System.................................................................2
3 Wiring Connection.................................................................................................3
3.1 RS485 Communication Wiring..................................................................3
3.2 RS232 Communication Wiring..................................................................3
4 MODBUS RTU Protocol.......................................................................................4
4.1 Message Configuration..............................................................................4
4.2 ID Number (Slave Address).......................................................................4
4.3 Function Code............................................................................................4
4.4 Data............................................................................................................4
4.5 Error Check CRC.......................................................................................4
4.6 Abnormal Code..........................................................................................5
4.7 Message example of RTU mode................................................................5
4.7.1 Reading ( Read PV from slave controller 1)..................................5
4.7.2 Setting (Set SV = 10.0 to slave controller 1).................................5
4.7.3 Setting (Set SV = 10.0 and OUTL=100.0 to slave controller 1)....6
5 MODBUS ASCII Protocol.....................................................................................7
5.1 Message Configuration..............................................................................7
5.2 ID Number(Slave Address)........................................................................7
5.3 Function Code............................................................................................7
5.4 Data............................................................................................................7
5.5 Error Check LRC.......................................................................................7
5.6 Abnormal Code..........................................................................................8
5.7 Message example of ASCII mode..............................................................8
5.7.1 Setting (Set SV = 10.0 to slave controller 1).................................8
5.7.2 Setting (Set SV = 10.0 and OUTL=100.0 to slave controller 1)....9
6 TAIE Protocol......................................................................................................10
6.1 Message Configuration............................................................................10
6.2 Command.................................................................................................10
6.3 ID Number ...............................................................................................10
6.4 Register Address ......................................................................................10
6.5 Data..........................................................................................................10
6.6 Check Sum...............................................................................................11
6.7 Message example of TAIE Protocol ........................................................11
