IAI America ROBO Cylinder Series - Manual (Page 210)

6. Modbus
ASCII
202
Modbus
(4) Sample query (Axis No. 0)
A sample query that reads address 9000
H
in a controller of axis No. 0 is shown below:
Query: 0103900000026A [CR][LF]
Field ASCII mode
fixed character string
Converted ASCII code
data [H]
Header ‘:’ 3A
Slave address ‘0’, ‘1’ 3031
Function code ‘0’, ‘3’ 3033
Start address ‘9’, ‘0’, ‘0’, ‘0’ 39303030
Number of registers ‘0’, ‘0’, ‘0’, ‘2’ 30303032
Error check ‘6’, ‘A’ 3641
Trailer ‘CR’, ‘LF’ 0D0A
The response to the query is as follows.
Response: 010304000013885D [CR][LF]
Field ASCII mode
fixed character string
Converted ASCII code
data [H]
Header ‘:’ 3A
Slave address [H] ‘0’, ‘1’ 3031
Function code [H] ‘0’, ‘3’ 3033
Number of data bytes [H] ‘0’, ‘4’ (4 bytes = 2 registers) 3034
Data 1 [H] ‘0’, ‘0’, ‘0’, ‘0’ 30303030
Data 2 [H] ‘1’, ‘3’, ‘8’, ‘8’ 31333838
Error check [H] ‘5’, ‘D’ (in accordance with
LRC calculation)
3544
Trailer ‘CR’, ‘LF’ 0D0A
The current position is “00001388” o Convert into decimal number o 5000 (x 0.01 mm)
The current position is 50 mm.
Note The data of the response example is simply an example and will vary depending on various
conditions.