Modbus – IAI America ROBO Cylinder Series User Manual
Page 237
6. Modbus
ASCII
229
Modbus
6.4.19 Special Input Port Input Signal Status Query <<SIPM>>
(1) Function
This query reads the status of input ports other than the normal input port.
[Refer to 4.3.2 (16), “Data of special input port monitor registers” for the data input via the special
input port.]
(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’, ‘1’, ‘2’
Special input port monitor
Number of registers [H]
4
‘0’, ‘0’, ‘0’, ‘1’
Reading address 9012
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’
Reading registers
Number of data bytes [H]
2
‘0’, ‘2’
Reading 1 register
= 2 bytes
Data [H]
4
Special port monitor
Refer to 4.3.2 (16), “List
table.”
Error check [H]
2
LRC calculation result
Trailer
2
‘CR’, ‘LF’
Total number of bytes
15