IAI America ROBO Cylinder Series - Manual (Page 131)

5. Modbus RTU
123
Modbus
(4) Query sample
A sample query that forcefully releases the break of a controller of axis No. 0 is shown below.
Query (silent intervals are inserted before and after the query)
01 05 04 08 FF 00 0C C8
Field RTU mode
8-bit data
Start Silent interval
Slave address [H] 01
Function code [H] 05
Start address [H] 0408
Changed data [H] FF00
Error check [H]
0CC8 (in accordance with
CRC calculation)
End Silent interval
If the change is successful, the response message will be the same as the query.