Omron V680 Series User Manual page 204

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
Byte 0 Byte 1
Transaction
identifier
X
Parameter
Register address
Word count
 Response Format
Normal Response
Byte 0 Byte 1 Byte 2
Transaction identifier Protocol identifier
X X 0000 hex
Byte count
Number of record
System error log
record information
Error Response
Byte 0 Byte 1
Transaction
identifier
X
Parameter
Exception code
 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
RFID System
202
User's Manual
(Modbus TCP)
Byte 2 Byte 3 Byte 4
Protocol identifier Field length
X 0000 hex 0006 hex
The register address (C500 hex) that specifies the system error log information.
The number of words in the system error log information to read (0041 hex)
Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
Unit
Field length identifie Function code
r
0085 hex FF hex 03 hex
Byte 11 ··· Byte 14
Operating time
4 bytes
Parameter
Operating time
Error code
Attached information 1
Attached information 2
Byte 2 Byte 3 Byte 4
Protocol identifier
X 0000 hex
For details, refer to Exception Code Table in this section.
p.167
Byte 5 Byte 6 Byte 7
Unit Function
identifier code
FF hex 03 hex
Description
Byte 8 Byte 9 Byte 10
Byte count Number of records
82 hex 1 word
Byte 15 ··· Byte 18 Byte 19 ···
Error code Attached information 1
4 bytes 4 bytes
The number of bytes in the system error log that was read (82 hex)
The number of record in the system error log that was read.
The operating time from when the Reader/Writer was started in 8-digits
hexadecimal (Unit: ms)
For details, refer to Error Codes in this section.
p.168
Byte 5 Byte 6 Byte 7
Unit Function
Field length
identifier
0003 hex FF hex 83 hex
Description
Byte 8 Byte 9 Byte 10 Byte 11
Register address
C500 hex
Byte 11 ··· Byte 26 ··· Byte 123
Most recent system error record Most recent system error log
···
information record information 7
8 words ···
Byte 22 Byte 23 ··· Byte 26
Attached information 2
4 bytes
Description
Byte 8
Exception
code code
1 byte
Word count
0041 hex
··· Byte 138
8 words