Instruction Manual

6. Modbus ASCII
261
Modbus
(4) Sample query
[1] A sample query that makes a controller of axis No. 0 jog is shown below.
Query: 01 05 04 16 FF 00 E1
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’, ‘1’, ‘6’ 30343136
Changed data [H] ‘F’, ‘F’, ‘0’, ‘0’ 46463030
Error check [H] ‘E’, ‘1’ (In accordance with LRC calculation) 4531
End ‘CR’, ‘LF’ 0D0A
If the change was 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:
First time: 01 05 04 16 FF 00 E1 --- Inching movement
Second time: 01 05 04 16 00 00 E0 --- 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’, ‘1’, ‘6’ 30343046
Changed data [H] First time: ‘F’, ‘F’, ‘0’, ‘0’
Second time: ‘0’, ‘0’, ‘0’, ‘0’
(Restore the normal status.)
46463030
30303030
Error check [H] First time: ‘E’, ‘1’ (In accordance with LRC
calculation)
Second time: ‘E’, ‘0’ (In accordance with
LRC calculation)
4531
4530
End ‘CR’, ‘LF’ 0D0A
If the change is successful, the response message will be the same as the query.