Modbus – IAI America ROBO Cylinder Series User Manual
Page 204
6. Modbus
ASCII
196
Modbus
6.4.5 Present Time Reading <
(1) Function
This bit reads the present time.ᴾ
[Dedicated for PCON-CA/CFA and SCON-CA]
(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’
Register reading
Start address [H]
4
SCON-CA:
‘8’, ‘4’, ‘1’, ‘A’
PCON-CA/CFA:
‘8’, ‘4’, ‘2’, ‘0’
Present time monitor
Number of registers [H]
4
‘0’, ‘0’, ‘0’, ‘2’
Reading addresses 8402
H
to 8403
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’
Register reading
Number of data bytes [H]
2
‘0’, ‘4’
Reading 2 registers
= 4 bytes
Data [H]
8
Present time
Refer to (4) for conversion
at time.
Error check [H]
2
LRC calculation result
Trailer
2
‘CR’, ‘LF’
Silent interval
Total number of bytes
19