IAI America ROBO Cylinder Series - Manual (Page 206)

6. Modbus
ASCII
198
Modbus
(5) Query sample
A sample query that reads the present time of PCON-CA (addresses 8420
H
to 8421
H
) of a controller
with axis No. 0 is shown below.
Query: 01038420000256 [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 ‘8’, ‘4’, ‘2’, ‘0’ 38343230
Number of registers ‘0’, ‘0’, ‘0’, ‘2’ 30303032
Error check ‘5’, ‘6’ (in accordance with
CRC calculation)
3536
Trailer ‘CR’, ‘LF’ 0D0A
The response to the query is as follows.
Response: 010304172C1B8B56 [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’ 3034
Data [H] ‘1’, ‘7’, ‘2’, ‘C’, ‘1’, ‘B’, ‘8’, ‘B’ 3137324331423842
Error check [H] ‘5’, ‘6’ (in accordance with
LRC calculation)
3536
Trailer ‘CR’, ‘LF’ 0D0A
Current time is 14h:43m:23s April 26, 2012.
Note The data of the response example is simply an example and will vary depending on various
conditions.