Appendix B - Modbus Tables; Register Tables - ABB Navigator 540 Instruction Manual

Appendix B – Modbus tables
B.1 Register tables
Table name
Digital I/O status
Alarm acknowledgement
Action commands
Read-only single precision float parameters
Read-only 32 bit parameters
Read-only 16 bit parameters
Read-only 8 bit parameters
Read-only string parameters
Read/Write single precision float parameters
Read/Write 16 bit parameters
Read/Write 8 bit parameters
Read/Write string parameters
40 COM/AWT540/PB–EN Rev. C | Navigator 540 | Transmitter
Table type Data type
Input coils Unsigned 8 bit
Output coils Unsigned 8 bit
Output coils Unsigned 8 bit
Input registers Float
Input registers Unsigned 32 bit
Input registers Unsigned 16 bit
Input registers Unsigned 8 bit
Input registers Unsigned 8 bit
Holding registers Float
Holding registers Unsigned 16 bit
Holding registers Unsigned 8 bit
Holding registers Unsigned 8 bit
Start address End address
0 999
0 499
500 949
30000 30999
31000 31999
32000 32999
33000 33999
34000 34999
40000 40999
42000 42999
43000 43999
44000 44999