Modbus – IAI America ROBO Cylinder Series User Manual
Page 199

6. Modbus
ASCII
191
Modbus
(4) Query sample
A sample query that reads the contents of last occurred alarm (addresses 0500
H
to 0505
H
) of a
controller with axis No. 0 is shown below.
Query: 010305000006F [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
‘0’, ‘5’, ‘0’, ‘0’
30353030
Number of registers
‘0’, ‘0’, ‘0’, ‘6’
30303036
Error check
‘F’, ‘1’ (in accordance with
CRC calculation)
4631
Trailer
‘CR’, ‘LF’
0D0A
The response to the query is as follows.
Response: 01030C0000FFFF00000E8172C643F24[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’, ‘C’ (12 bytes = 6 registers) 3034
Data 1 [H]
‘0’, ‘0’, ‘0’, ‘0’
30303030
Data 2 [H]
‘F’, ‘F’, ‘F’, ‘F’
46464646
Data 3 [H]
‘0’, ‘0’, ‘0’, ‘0’, ‘0’, ‘0’, ‘E’, ‘8’
3030303030304538
Data 4 [H]
‘1’, ‘7’, ‘2’, ‘C’, ‘6’, ‘4’, ‘3’, ‘F’
3137324336343346
Error check [H]
‘2’, ‘4’ (in accordance with
LRC calculation)
3234
Trailer
‘CR’, ‘LF’
0D0A
Alarm detail code:
0000
H
xxxx
No detail code
Alarm address:
FFFF
H
xxx
Disable(no detail code)
Alarm code:
00E8
H
=0E8xxxEncoder AB phase break error
Alarm occurrence time: 172C643F
H
(conversion)2012/04/26 19:53:35[Conversion is refer
to the Section 4.3.2(8)]
Note 1 The data of the response example is simply an example and will vary depending on
various conditions.
Note 2 For the detail of an alarm code, check in the instruction manual of the each
controller.