
6 Communication settings and guide of HMI connecting with controller
Internal Register
(Double words)
------ MD0.00-7.15 D.DD
Indirect Register
(Double words)
------ KD0.00-7.15 D.DD
ABB AC500
Device Bit Address Word Address Format
PLC Register MB0.0—8191.7 ------ DDDD.O
Internal Register ------ MW0.0—1.32767 D.DDDDD
Internal Register (Double words) ------ MD0.0—1.16383 D.DDDDD
Note:
1)Select “MODBUS” mode in the ABB AC500 programming software;
2)If selecting “COM1 MODBUS”, serial communication setting must be “slave” in the 15th
“Operation mode”. Other parameters match the touch-screen.
3)Example: MB address: 0.0.1, please input 0.1 in the HMI.
Cable Diagram
ABB AC31 RS232
ABB AC31 RS485
ABB AC500 port1 RS232
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