IAI America ROBO Cylinder Series - Manual (Page 253)

6. Modbus
ASCII
245
Modbus
(4) Query sample
A sample query that resets the alarms of a controller of axis No. 0 is shown below.
First time 01 05 04 07 FF 00 F0 --- Execute alarm reset
Second time 01 05 04 07 00 00 EF --- Restore normal status
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’, ‘0’, ‘7’ 30343037
Changed data [H] First time: ‘F’, ‘F’, ‘0’, ‘0’
Second time: ‘0’, ‘0’, ‘0’, ‘0’
(Write 0000
H
after resetting alarms to restore
the normal status.)
46463030
30303030
Error check [H] First time: ‘F’, ‘0’ (in accordance with LRC
calculation)
Second time: ‘E’, ‘F’ (in accordance with
LRC calculation)
4630
4546
End ‘CR’, ‘LF’ 0D0A
If the change is successful, the response message will be the same as the query.