IAI America ROBO Cylinder Series - Manual (Page 244)

6. Modbus
ASCII
236
Modbus
(4) Query sample
A sample query that reads the expansion system status register (address 9015
H
) of a controller of
axis No. 0 is shown below.
Query: 01039015000156 [CR] [LF]
Field ASCII mode
fixed character string
Converted ASCII
code data [H]
Start ‘:’ 3A
Slave address [H] ‘0’, ‘1’ 3031
Function code [H] ‘0’, ‘3’ 3033
Start address [H] ‘9’, ‘0’, ‘1’, ‘5’ 39303135
Number of registers [H] ‘0’, ‘0’, ‘0’, ‘1’ 30303031
Error check [H] ‘5’, ‘6’ (in accordance with LRC
calculation)
3536
End ‘CR’, ‘LF’ 0D0A
The response to the query is as follows.
Response: 0103020100F9 [CR] [LF]
Field ASCII mode
fixed character string
Converted ASCII
code data [H]
Start ‘:’ 3A
Slave address [H] ‘0’, ‘1’ 3031
Function code [H] ‘0’, ‘3’ 3033
Number of data bytes [H] ‘0’, ‘2’ (2 bytes = 1 register) 3032
Data 1 [H] ‘0’, ‘1’, ‘0’, ‘0’ 30313030
Error check [H] ‘F’, ‘9’ (in accordance with LRC
calculation)
4639
End ‘CR’, ‘LF’ 0D0A
Note The data of the response example is simply an example and will vary depending on
various conditions