Omron V680 Series User Manual page 195

 GET Model INFORMATION
This query reads the model number from the Reader/Writer.
 Query Format
Byte 0 Byte 1 Byte 2
Transaction
Protocol identifier
identifier
X X 0000 hex
Parameter
Register address
Word count
 Response Format
Normal Response
Byte 0 Byte 1 Byte 2 Byte 3
Transaction Protocol
identifier identifier
X X 0000 hex
Parameter
Byte count
Model number information The model information that was read is given with up to 32 bytes of ASCII characters (up to 31
Error Response
Byte 0 Byte 1 Byte 2
Transaction
Protocol identifier
identifier
X X 0000 hex
Parameter
Exception code
 Execution Example
Reading the Model Information When the Model Number Is V680S-A001
TX: 000000000006FF03C1000010
RX: 000000000023FF032056363830532A4130303100000000000000000000000000000000000000000000
Byte 3 Byte 4 Byte 5
Field length
0006 hex
The register address (C100 hex) that specifies the model number information.
The number of words in the model number information to read (0010 hex)
Byte 4 Byte 5 Byte 6 Byte 7
Unit
Field length Function code
identifier
0023 hex FF hex 03 hex
The number of bytes in the model number information that was read (20 hex)
ASCII characters plus the end code (00 hex)).
If there are fewer than 31 characters, the remaining bytes are filled with 00 hex.
The model information is given with ASCII characters 20 hex (space) to 7E hex (~).
Byte 3 Byte 4 Byte 5
Field length
0003 hex
For details, refer to Exception Code Table in this section.
p.167
Host Communications Specifications
Byte 6 Byte 7 Byte 8
Unit Function
Register address
identifier code
FF hex 03 hex C100 hex
Description
Byte 8 Byte 9 ···
Byte count Model number information
20 hex 32 bytes
Description
Byte 6 Byte 7 Byte 8
Unit Function Exception
identifier code code
FF hex 83 hex 1 bytes
Description
Section 7
Byte 9 Byte 10 Byte 11
Word count
0010 hex
Byte 40
RFID System
User's Manual
(Modbus TCP)
193