Omron V680S Series User Manual page 105

Reader/Writer Settings
 SET TAG COMMUNICATIONS OPTION
This query sets the communications option of the Reader/Writer to Once, Auto, or FIFO Trigger.
 Query Format
Byte 0 Byte 1 Byte 2 Byte 3
Transaction Protocol
identifier identifier
X X 0000 hex
Parameter
Register address
Word count
Byte count
Tag communications
option setting
 Response Format
Normal Response
Byte 0 Byte 1 Byte 2 Byte 3
Transaction Protocol
identifier identifier
X X 0000 hex
Parameter
Register address
Word count
Error Response
Byte 0 Byte 1 Byte 2
Transaction
Protocol identifier
identifier
X X 0000 hex
Parameter
Exception code
 Execution Example
Setting the Communications Option to Auto
TX: 000000000009FF10B0000001020001
RX: 000000000006FF10B0000001
Byte 4 Byte 5 Byte 6 Byte 7
Unit
Field length Function code
identifier
0009 hex FF hex 10 hex
The register address (B000 hex) that specifies the RF Tag communications option setting.
Number of words of data (0001 hex)
Number of bytes of data (02 hex)
Specify the RF Tag communications option in 4-digit hexadecimal.
Once: 0000 hex (default), Auto: 0001 hex, FIFO trigger: 0002 hex
Byte 4 Byte 5 Byte 6 Byte 7
Unit
Field length Function code
identifier
0006 hex FF hex 10 hex
Contains the register address that was specified in the query.
Contains the word count that was specified in the query.
Byte 3 Byte 4 Byte 5
Field length
0003 hex
For details, refer to Exception Code Table in this section.
p.91
Host Communications Specifications
Byte 8 Byte 9 Byte 10 Byte 11
Register
Word count
address
B000 hex 0001 hex
Description
Byte 8 Byte 9 Byte 10 Byte 11
Register address Word count
B000 hex 0001 hex
Description
Byte 6 Byte 7 Byte 8
Unit Function Exception
identifier code code
FF hex 90 hex 1 byte
Description
Section 5
Byte 12 Byte 13 Byte 14
Byte Tag communications
count option setting
02 hex 2 bytes
RFID System
User's Manual
103