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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
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
Содержание V680S Series
Страница 16: ...14 RFID System User s Manual Modbus TCP Introduction Introduction MEMO ...
Страница 58: ...56 Section 1 Data Characteristics RFID System User s Manual Modbus TCP Section 1 Product Overview MEMO ...
Страница 64: ...62 Section 2 System Configuration RFID System User s Manual Modbus TCP Section 2 System Configuration MEMO ...
Страница 72: ...70 Section 3 Component Names RFID System User s Manual Modbus TCP Section 3 Component Names MEMO ...
Страница 242: ...240 Section 8 Operation Interface RFID System User s Manual Modbus TCP Section 8 Web Browser Interface ...
Страница 337: ...Index 335 RFID System User s Manual Modbus TCP Index ...
Страница 342: ...340 RFID System User s Manual Modbus TCP MEMO ...
Страница 343: ......