Omron V780 Series, Руководство пользователя

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7 Modbus/TCP Communications
7 - 88 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
 Function
This command sets the access password for RF Tag communications of the Reader/Writer.
 Command Format
 Response Formats
• Normal Response
• Error Response
SET ACCESS PASSWORD
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 000B hex FF hex 10 hex C400 hex 0002 hex
Byte-12 Byte-13 ... Byte-16
Byte
count
Access password
04 hex 4 bytes
Parameter Description Default setting
Register address The register address (C400 hex) that specifies the access password setting
Access password Specify the access password to use for RF Tag communications in
8-digit hexadecimal.
The specified access password is stored in EEPROM memory in
the Reader/Writer.
If the access password in the RF Tag is not all zeros, the access
password that is stored in EEPROM memory must be used to exe-
cute LOCK, ID WRITE, DATA READ, or DATA WRITE commands.
00000000 hex
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 10 hex C400 hex 0002 hex
Parameter Description
Word count Always 0002 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 90 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.