Section 7 Message Details
Section 7
Host Communications Specifications
179
RFID System
User's Manual
(Modbus TCP)
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
Response Format
Normal Response
Error Response
Execution Example
Setting the Communications Option to Auto
TX: 000000000009FF10B0000001020001
RX: 000000000006FF10B0000001
Parameter Description
Register address The register address (B000 hex) that specifies the RF Tag communications option setting.
Word count Number of words of data (0001 hex)
Byte count Number of bytes of data (02 hex)
Tag communications
option setting
Specify the RF Tag communications option in 4-digit hexadecimal.
0000 hex: Once
0001 hex: Auto
0002 hex: FIFO trigger (Without ID code check)
0012 hex: FIFO trigger (With ID code check)
Parameter Description
Register address Contains the register address that was specified in the query.
Word count Contains the word count that was specified in the query.
Parameter Description
Exception code For details, refer to Exception Code Table in this section.
p.167
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9 Byte 10 Byte 11 Byte 12 Byte 13 Byte 14
Transaction
identifier
Protocol
identifier
Field length
Unit
identifier
Function code
Register
address
Word count
Byte
count
Tag communications
option setting
XX
0000 hex 0009 hex
FF hex 10 hex
B000 hex 0001 hex
02 hex 2 bytes
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9 Byte 10 Byte 11
Transaction
identifier
Protocol
identifier
Field length
Unit
identifier
Function code Register address Word count
X X 0000 hex 0006 hex FF hex 10 hex B000 hex 0001 hex
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
Transaction
identifier
Protocol identifier Field length
Unit
identifier
Function
code
Exception
code
X X 0000 hex 0003 hex FF hex 90 hex 1 byte
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