Omron SYSMAC CJ1W-PRM21, Operation Manual

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Command / Response Reference
Section 5-2
Parameters
First Record Number
(Command) The first record to be read. The first record number can be specified in the
range between 0000 and 0050 (0 to 80 decimal) where 0000 is the oldest
record in the Error Log, since the last performed ERROR LOG READ com-
mand.
Number of Records
(Command, Response) The number of records to read is specified between 0001 and 0050 (1 to 80
decimal) in the command. The response returns the actual number of records
read.
Maximum Number of
Stored Records
(Response) The maximum number of records that can be stored in the error log. In a
PROFIBUS-DP Master Unit, the maximum number of stored records is fixed
at 50 (80 decimal).
Number of Stored
Records (Response) The number of records stored at the time the command is executed.
Error Log Data
(Response) The specified number of error log records from the starting record number is
returned sequentially.
The total number of bytes in the error log is calculated as the number of
records x 10 bytes/record. Each error log record thus consist of 10 bytes, con-
figured as follows:
Error Code, Detailed Information
Details of the error stored in the record. Refer to SECTION 7 Troubleshooting
and Maintenance for details.
Minute, Second, Day, Hour, Year, Month
Indicate the time at which the error stored in the record occurred.
Precautions
The total number of records to be returned is either the number specified in
the command, or the number of available new records in the Error Log, which-
ever is smaller.
If more then one record is read, the records are returned in a oldest-to-newer
sequence, i.e. the oldest record is the first in the response message.
Response Codes
1st byte 10th byte
Error
code Detailed
information
Minutes
Second
Day
Hour
Year
Month
Response code Description
0000 Normal.
1001 Command too large.
1002 Command too small.
1103 Beginning record number is out of range.
110C The number of read records is 0.