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Description of FINS Commands
Section
6-3
188
command code
READ ERROR LOG
21 02
Function
Reads the error log on the Loop Control Unit.
The configuration of each error log is as follows, and error logs are stored in
RAM (battery-backed up) on the Loop Control Unit. The configuration of each
error log is as follows and is regarded as a single record. For details on error
codes, see 7-1 Errors and Alarm Troubleshooting.
Error code
Detailed information
1 record
Date (year/month) and time (hour/minute/second) of occurrence
Command format
Command code
Data format
21 Hex
02 Hex
Read start record
number
Number of read
records
Data length
(bytes)
1
1
2
2
1) Read start record number
Specify the first record number to read in Hex.
The first record number (oldest record) is 0000 Hex.
2) Number of read records
Specify the number of records to read in Hex from 0000 onwards.
Response format
Command code
Response
code
Data
format
21 Hex 02 Hex MRES SRES
Maximum
number of
stored records
Number of
stored
records
Number of
read
records
Data length
(bytes)
1
1
1
1
2
2
2
Data
format
Error code
Detailed
information
Minute Second
Date
Hour
Year
Month
Data length
(bytes)
2
2
1
1
1
1
1
1
1) Maximum number of stored records
The maximum number of error logs that can be stored is returned in Hex.
2) Number of stored records
The number of error log records currently stored at the time of command
execution is returned in Hex.
1 record