IAI America ROBO Cylinder Series - Manual (Page 145)

5. Modbus RTU
137
Modbus
(4) Query sample
[1] A sample query that makes a controller of axis No. 0 jog is shown below.
Query (silent intervals are inserted before and after the query)
01 05 04 16 FF 00 6C CE
Field RTU mode
8-bit data
Start Silent interval
Slave address [H] 01
Function code [H] 05
Start address [H] 0416
Changed data [H] FF00
Error check [H] 6CCE (in accordance with
CRC calculation)
End Silent interval
If the change is successful, the response message will be the same as the query.
[2] A sample query that makes a controller of axis No. 0 inch is shown below.
Query (silent intervals are inserted before and after the query)
First time 01 05 04 16 FF 00 6C CE --- Perform inching movement
Second time 01 05 04 16 00 00 2D 3E --- Restore the normal status
Field RTU mode
8-bit data
Start Silent interval
Slave address [H] 01
Function code [H] 05
Start address [H] 0416
Changed data [H] First time: FF00
Second time: 0000
(Restore the normal status.)
Error check [H] First time: 6CCE
(in accordance with CRC calculation)
Second time: 2D3E
(in accordance with CRC calculation)
End Silent interval
If the change is successful, the response message will be the same as the query.