Omron V680S Series, Руководство пользователя

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RFID System
User's Manual
(Modbus TCP)
Section 7
Host Communications Specifications
Message Details
RF Tag Communications

READ DATA
This query reads data from an RF Tag in the communications field.

Query Format

Response Format
Normal Response
Error Response

Execution Example
Reading Eight Words of Data Starting from Word Address 1234 Hex in the RF Tag
TX: 000000000006FF0312340008
RX: 000000000013FF031011112222333344445555666677778888
Parameter Description
Register address Specify in 4-digit hexadecimal the start address for reading data.
Setting range: 0000 to 9FFF hex (Specify a word address.)
Word count Specify in 4-digit hexadecimal the number of words of data to read.
Setting range: 0001 to 007D hex
Parameter Description
Byte count Contains the number of bytes of data that was read from the RF Tag in 2-digit hexadecimal.
(02 to FA hex)
Read data The data that was read from the RF Tag is attached.
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
Transaction
identifier
Protocol identifier Field length
Unit
identifier
Function
code
Register address Word count
X X 0000 hex 0006 hex FF hex 03 hex 2 bytes 2 bytes
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9 ··· Byte n
Transaction
identifier
Protocol identifier Field length
Unit
identifier
Function
code
Byte
count
Read data
X X 0000 hex 00 hex FF hex 03 hex 1 byte 2 to 250 bytes
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 83 hex 1 byte