IAI America ROBO Cylinder Series - Manual (Page 237)

6. Modbus
ASCII
229
Modbus
6.4.19 Special Input Port Input Signal Status Query <>
(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