Omron CS1W-CRM21 - Page 210

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FINS Commands Addressed to CompoNet Master Units and Responses Appendix A
Reads the CompoNet Master Unit error history.
Command Format
Response Format
End Codes (MRES/SRES)
Note (1) If there is insufficient error history data for the number of records to read, all the records currently
stored are returned and a normal completion (0000 hex) response is returned.
(2) If 0000 hex is specified for the beginning record number read, the response will be taken as normal
completion (0000 hex) even if the number of records stored is 0000 hex. A response will be returned
containing the maximum number of records, the number of records stored, and the number of
records read.
Parameter Details
First Record to Read (Command)
Specify the first record number read in hexadecimal.
With the top record number (the oldest record) taken as 0000 hex, the first record number read is specified
from 0000 to 003F (0 to 63 decimal).
Number of Records to Read (Command)
Specify in hexadecimal the number of records to read. Any number from 0001 to 0035 (1 to 53 decimal) can be
specified.
(Error history records beyond 53 must be read separately, with the First record to read set to 0035 hex.)
Maximum Number of Records (Response)
The maximum number of error history records that can be stored is returned in hexadecimal.
With CompoNet Master Units, this number is always 0040 hex (64 decimal).
Number of Records Stored (Response)
The number of error history records stored when the command is executed is returned in hexadecimal.
READ ERROR LOG 2102
MRC
21
SRC
02
First record to
read
Number of
records to read
1B 1B 2B 2B
MRC
21
SRC
02
MRES SRES Max. number
of records
Number of
records stored
Number of
records read
Error history
records
1B 1B 1B 1B 2B 2B 2B 10B
End code (hex) Contents
0000 Normal completion
1001 The maximum permissible command length was exceeded.
1002 The command length is less than the minimum command length.
1103 An error occurred because an out-of-range address was specified. The begin-
ning record number read is greater than the number of records currently stored.
110B The maximum response length was exceeded. The response exceeded the
maximum frame length.
110C Another error occurred. The number of read records is 0.