Mitsubishi Electric MELSEC iQ-R Series User Manual page 104

Error log area (Un\G150 to 311)
The history of an error occurred in a recorder module can be checked.
Buffer memory name
Error count
Error log write pointer
Error log 1
Error log 2 to 16
■Error count (Un\G150)
The total number of times an error log is registered in the error log area is stored.
■Error log write pointer (Un\G151)
An error log number in which the latest error log is registered is stored. (When '16' is stored, the latest error log is registered in
the area of error log 16.)
Up to 15 continuation errors and 1 stop error are registered.
If 15 continuation errors are displayed, new continuation errors will not be registered. If the new error has the same error code
as the already registered error, the error occurrence date/time and its detailed information will not be updated.
Even if a new error occurs after a stop error occurs, the new one is not registered.
6 RECORDER MODULE (DETAILED SPECIFICATIONS)
102
6.4 Buffer Memory
Address
Un\G150
Un\G151
Error code Un\G152
Time Un\G154
Un\G155
Un\G156
Un\G157
Un\G158
Un\G159
Un\G162 to 311
Description
The total number of times an error log is registered in the error log area is
stored.
An error log number in which the latest error log is registered is stored.
0: No error
1 to 16: Error log number
An error code is stored.
b0 to 7: Time zone and summer time flag
b8 to 15: System area
b0 to 7: Last two digits of the year
b8 to 15: Month (01 to 12)
b0 to 7: Day (01 to 31)
b8 to 15: Hour (00 to 23)
b0 to 7: Minute (00 to 59)
b8 to 15: Second (00 to 59)
b0 to 7: Day of the week (0: Sun, 1: Mon, 2: Tue, 3: Wed, 4: Thu, 5: Fri, 6:
Sat)
b8 to 15: First two digits of the year
b0 to 7: First two digits of the millisecond
b8 to 15: Last two digits of the millisecond
Details are the same as error log 1.