IAI America ROBO Cylinder Series - Manual (Page 277)

6. Modbus
ASCII
269
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: 01 05 04 27 FF 00 D0
Field ASCII mode 8-bit data Converted ASCII
code data [H]
Start ‘:’ 3A
Slave address [H] ‘0’, ‘1’ 3031
Function code [H] ‘0’, ‘5’ 3035
Start address [H] ‘0’, ‘4’, ‘2’, ‘7’ 30343237
Changed data [H] ‘F’, ‘F’, ‘0’, ‘0’ 46463030
Error check [H] ‘D’, ‘0’ (in accordance with LRC calculation) 4430
End ‘CR’, ‘LF’ 0D0A
If the change is successful, the response message will be the same as the query.