User's Manual

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7 Modbus/TCP Communications
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
7-6 V780 Command Details
7
7-6-6 Reader/Writer Setting Commands: Communications Settings
 Function
This command is used to check the channel that is set in the Reader/Writer.
 Command Format
 Response Formats
• Normal Response
• Error Response
 Execution Examples
Execution When Channel 2 Is Set for the Reader/Writer
TX: 000000000006FF03C2000001
RX: 000000000005FF03020002
GET CHANNEL
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 C200 hex 1 byte
Parameter Description
Register address The register address (C200 hex) that specifies the
channel
Word count Always 0001 hex.
Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10
Transaction identi-
fier
Protocol identifier Field length Unit
identifier
Function
code
Byte
count
Channel
X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes
Parameter Description Default setting
Field length Always 0005 hex.
Byte count Always 02 hex.
Channel Gives the channel in 4-digit hexadecimal.
0000 hex: Auto
0002 hex: Channel 2
0008 hex: Channel 8
000E hex: Channel 14
0000 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 iden-
tifier
Function
code
Excep-
tion code
X X 0000 hex 0003 hex FF hex 83 hex 1 byte
Parameter Description
Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for
Error Completion on page 7-7.