Omron V680 Series User Manual page 200

Section 7
Host Communications Specifications
 GET RECENT ERROR QUERY INFORMATION
This query reads the recent error information from 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
Transaction
identifier
X X
Byte 9 Byte 10
Operating time
4 bytes
Byte count
Recent error query
information
Error Response
Byte 0 Byte 1
Transaction
identifier
X
Parameter
Exception code
RFID System
198
User's Manual
(Modbus TCP)
Byte 2 Byte 3 Byte 4
Protocol identifier Field length
X 0000 hex
The register address (C700 hex) that specifies the recent error query information.
The number of words in the recent error query information to read (007D hex)
Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
Unit
Protocol identifier Field length
identifier
0000 hex 00FD hex FF hex
Byte 11 Byte 12 Byte 13 Byte 14 Byte 15
IP address of remote node
4 bytes
Parameter
Operating time
IP address of
remote node
Error code
Exception code
Communications
query information
size
Communications
query information
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
0006 hex FF hex 03 hex
Description
Byte 7 Byte 8
Function code Byte count
03 hex FA hex
Byte 16 Byte 17 Byte 18 Byte 19 Byte 20
Error code
4 bytes
The number of bytes in the recent error query information that was read (FA hex)
The operating time from when the Reader/Writer was started in 8-digits
hexadecimal (Unit: ms)
Contains the IP address that was read in 8-digits hexadecimal.
Example: C0A801C8 hex (192.168.1.200)
For details, refer to Error Codes in this section.
p.168
For details, refer to Exception Code Table in this section.
p.167
Contains the number of bytes in the communications query information in 2-digit
hexadecimal.
Query that was invoked when an error occurred.
Byte 5 Byte 6
Unit Function
Field length
identifier
0003 hex FF hex 83 hex
Description
Byte 8 Byte 9 Byte 10 Byte 11
Register address
C700 hex
Byte
Byte 9 ···
258
Recent error query information
250 bytes
Byte 21 Byte 22 Byte 3
Communications
Excepti Communications query
query information
on code
size
1 byte 1 byte
Description
Byte 7 Byte 8
Exception
code code
1 bute
Word count
007D hex
··· Byte 258
information
236 bytes