Omron V780 Series, Руководство пользователя

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7 Modbus/TCP Communications
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
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6 V780 Co
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Detail
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7-6
-9 Maintenance Comma
nds:
Log Infor
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ation
 Function
This command is used to check the most recent command error information from the Reader/Writer.
The most recent command error information is cleared when the Reader/Writer is restarted.
 Command Format
 Response Formats
• Normal Response
GET MOST RECENT COMMAND ERROR INFORMATION
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 D900 hex 000C hex
Parameter Description
Register address The register address (D900 hex) that specifies reading the most recent command
error information
Word count The number of words in the most recent command error information to read (000C
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 identifier Function code Byte count
X X 0000 hex 001B hex FF hex 03 hex 18 hex
Byte-9 ... Byte-12 Byte-13 ... Byte-16 Byte-17 Byte-18 Byte-19 Byte-20 Byte-21 Byte-22
Most recent command error information
Time information IP address of the remote
device
Transaction identifier Command code Error code
4 bytes 4 bytes 2 bytes 2 bytes 2 bytes
Byte-23 Byte-24 Byte-25 Byte-26 Byte-27 Byte-28 Byte-29 Byte-30 Byte-31 Byte-32
Most recent command error information
Reader/Writer Number Attached information 1 Attached information 2
2 bytes 4 bytes 4 bytes
Parameter Description
Byte count The number of bytes in the most recent command error informa-
tion that was read (18 hex)
Most recent
command error
information Time information Gives the time information in 8-digit hexadecimal
IP address of the remote
device Gives the IP address that was read in 8-digit hexadecimal.
Example: C0A801C8 hex (192.168.1.200)
Transaction identifier The transaction identifier specified in the command that produced
the error
Command code Gives the command code in 8-digit hexadecimal.
Error code For details, refer to 9-2-1 Command Errors on page 9-4.
Reader/Writer Number This displays the Reader/Writer number of the reader/writer com-
municating with the RF Tag in 4 hexadecimal digits.
* This is 0000 hex if Multi-Reader/Writer mode is disabled or if
there is a command error.
Attached information 1 Gives additional information 1 on the error in 8-digit hexadecimal.
Attached information 2 Gives additional information 2 on the error in 8-digit hexadecimal.