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Section 7 Message Details
RFID System
User's Manual
(Modbus TCP)
Section 7
Host Communications Specifications
GET SYSTEM ERROR LOG
This query reads the log of system errors (fatal errors) that have occurred in the Reader/Writer.
Query Format
Response Format
Normal Response
Error Response
Execution Example
Reading the System Error Log When an Error with an Error Code of 10010000 Occurred at an
Operating Time of 1111111111 and an Error with an Error Code of 20030000 Occurred at an
Operating Time of 2222222222 (No Attached Information for Either Error)
TX: 000000000006FF03C5000041
RX:
000000000085FF03820002423A35C710010000000000000000000084746B8E20030000000000000000000000000000···
00
Parameter Description
Register address The register address (C500 hex) that specifies the system error log information.
Word count The number of words in the system error log information to read (0041 hex)
Parameter Description
Byte count The number of bytes in the system error log that was read (82 hex)
Number of record The number of record in the system error log that was read.
System error log
record information
Operating time The operating time from when the Reader/Writer was started in 8-digits
hexadecimal (Unit: ms)
Error code For details, refer to Error Codes in this section.
p.168
Attached information 1
Attached information 2
Parameter Description
Exception code For details, refer to Exception Code Table in this section.
p.167
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 C500 hex 0041 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
···
Byte 26
···
Byte 123
···
Byte 138
Transaction identifier Protocol identifier Field length
Unit
identifie
r
Function code
Byte count
Number of records
Most recent system error record
information
···
Most recent system error log
record information 7
XX
0000 hex 0085 hex
FF hex 03 hex 82 hex 1 word 8 words
···
8 words
Byte 11
···
Byte 14 Byte 15
···
Byte 18 Byte 19
···
Byte 22 Byte 23
···
Byte 26
Operating time Error code Attached information 1 Attached information 2
4 bytes 4 bytes 4 bytes 4 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