Modbus – IAI America ROBO Cylinder Series User Manual
Page 223
6. Modbus
ASCII
215
Modbus
6.4.12 Controller Status Signal Reading 2 <<DSS2>>
(1) Function
This query reads the internal status 2 of the controller.
[Refer to 4.3.2 (13), “Data of device status register 2.”]
(2) Query format
Field
Number of characters ASCII mode character
string (fixed)
Remarks
Header
1
‘:’
Slave address [H]
2
Arbitrary
Axis number + 1
(01
H
to 10
H
)
Function code [H]
2
‘0’, ‘3’
Reading registers
Start address [H]
4
‘9’, ‘0’, ‘0’, ‘6’
Device status register 2
Number of registers [H]
4
‘0’, ‘0’, ‘0’, ‘1’
Reading address 9006
H
Error check [H]
2
LRC calculation result
Trailer
2
‘CR’, ‘LF’
Total number of bytes
17
(3) Response format
A response message contains 16 bits of data per register.
Field
Number of characters ASCII mode character
string (fixed)
Remarks
Header
1
‘:’
Slave address [H]
2
Arbitrary
Axis number + 1
(01
H
to 10
H
)
Function code [H]
2
‘0’, ‘3’
Internal controller status
Number of data bytes [H]
2
‘0’, ‘2’
Reading 1 register
= 2 bytes.
Data [H]
4
Status 2
Status 2 [Hex]
Error check [H]
2
LRC calculation result
Trailer
2
‘CR’, ‘LF’
Total number of bytes
15