IAI America ROBO Cylinder Series - Manual (Page 153)

5. Modbus RTU
145
Modbus
(4) Response
If the change is successful, the response message will be the same as the query.
If invalid data is sent, an exception response (refer to section 7) will be returned, or no response
will be returned.
(5) Query sample
A sample query that enables the Modbus command of the operation of a controller of axis No. 0 is
shown below.
Query (silent intervals are inserted before and after the query)
01 05 04 27 FF 00 3D 01
Field RTU mode
8-bit data
Start Silent interval
Slave address [H] 01
Function code [H] 05
Start address [H] 0427
Changed data [H] FF00
Error check [H] 3D01 (in accordance with
CRC calculation)
End Silent interval
If the change is successful, the response message will be the same as the query.