Chapter 6 Wiring, Communication Setting and Network Construction
6-21
Function code Indication
writable/readable
Available
register
16#01
Read output bit register values. 256 Bit register
16#02 Read bit register values. 256 Bit register
16#03
Read one single or multiple word register
values.
100 Word register
16#05 Write one single bit register value. 1 Bit register
16#06 Write one single word register value. 1 Word register
16#0F Write multiple bit register values. 256 Bit register
16#10 Write multiple word register values. 100 Word register
response
Indication
16#01
Unsupported function code
16#02 Unsupported Modbus address
16#03
The data length is out of the valid range.