User's Manual
Table Of Contents
- Modbus/TCP Communications
- 7-1 Outline
- 7-2 Message Formats
- 7-3 RF Communications Command Options
- 7-4 Communications Procedure
- 7-5 Commands
- 7-6 V780 Command Details
- 7-6-1 Single-access Communications Commands
- 7-6-2 Multiaccess Communications Commands
- 7-6-3 Modbus Expansion Communications Commands
- 7-6-4 Reader/Writer Control Commands
- 7-6-5 Reader/Writer Setting Commands: Network Settings
- 7-6-6 Reader/Writer Setting Commands: Communications Settings
- 7-6-7 Reader/Writer Setting Commands: Device Settings
- 7-6-8 Maintenance Commands: Device Information
- 7-6-9 Maintenance Commands: Log Information
- 7-6-10 Maintenance Commands: RF Communications Information
7 Modbus/TCP Communications
7 - 88
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
Function
This command reads the RF Tag selection filter conditions that are set in the Reader/Writer.
Command Format
Response Formats
• Normal Response
*1. If the RF Tag selection filter conditions settings are being disabled, this value is always 0000 hex.
GET RF TAG SELECTION FILTER CONDITIONS
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 identi-
fier
Protocol identifier Field length Unit
identifier
Function
code
Register address Word count
X X 0000 hex 0006 hex FF hex 03 hex C500 hex 0013 hex
Parameter Description
Register address The register address (C500 hex) that specifies setting the RF Tag
selection filter conditions
Word count The number of words in the RF Tag selection filter conditions to
read (0013 hex)
Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8
Transaction identi-
fier
Protocol identifier Field length Unit
identifier
Function
code
Byte
count
X X 0000 hex 0028 hex FF hex 03 hex 26 hex
Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14 Byte-15 ... Byte-46
RF Tag selection filter conditions
Enable/disable Address Data length Data
2 bytes 2 bytes 2 bytes 32 bytes
Parameter Description Default setting
Byte count The number of bytes in the RF Tag selection filter conditions (26 hex)
RF Tag selection
filter conditions
Enable/disable Gives whether RF Tag selection filter conditions are
enabled or disabled in 4-digit hexadecimal.
0000 hex: Disable
0001 hex: Enable
0000 hex
Address
*1.
Gives the address (in words) of the RF Tag to check for
in 4-digit hexadecimal.
1000 to 17FF hex: EPC area
2000 to 27FF hex: TID area
3000 to 37FF hex: User area
0000 hex
Data length
*1.
Gives the number of words of data to check in 4-digit
hexadecimal.
0000 to 0010 hex
0000 hex
Data
*1.
Gives the data to check for. (Always 16 words.)
*Unused data is filled with 0000 hex.
*In compliance with Gen2 standards, bits 0 to 255 are
masked, so the last bit of word 16 (bit 256) is ignored.
00....00 hex