Event History Collection Function - Mitsubishi Electric MELSEC Q Series User Manual

11.9

Event History Collection Function

Up to 500 events that occurred in the C Controller system will be registered as event history with occurrence time. If
the number of event history items exceeds 500, the oldest event is deleted.
For this setting, use the following functions in Setting/monitoring tools for the C Controller module.
•
[Diagnostics]  [Event history]  <<Event history>>
● As the clock data in the C Controller module is used for event history occurrence time, be sure to set the accurate time
first.
● If the battery less drive is enabled, clock data are initialized at power-on. The event history occurrence time registered
right after power-on may be the initial value for clock data (00:00:00, Jan 1, 2000).
● If "Do not register system (information) event details." is selected in Project view  "Parameter"  "CCPU Parameter" 
<<RAS Setting>>  "Event history registration settings", event(s) in the C Controller system will not be registered with
the event history.
● If error is occurring, new error(s) may not be registered with the event history.
(1) Event type
There are following types of events in the C Controller system.
Type
System (Err.)
System (Warning)
System (Info.)
Application
For details of events registered by the C Controller module, refer to the following.
 Page 434, Appendix 2
(2) Clearing event history
For this setting, use the following functions in Setting/monitoring tools for the C Controller module.
•
[Diagnostics]  [Event history]  <<Event history>>  "Clear"
The registered event history is all cleared.
(3) Registering events from the user program
Execute the C Controller module dedicated function (CCPU_RegistEventLog) to register event logs with the
event history.
Function name
CCPU_RegistEventLog
Note11.7
Q24DHCCPU-LS
Not supported by Q24DHCCPU-LS and Q26DHCCPU-LS.
The event is a C Controller system error.
The event is a C Controller system warning.
The event is a C Controller system information.
This event is registered by using the C Controller module dedicated function
(CCPU_RegistEventLog) from the user program.
Registers an event log to the event history.
Q26DHCCPU-LS
CHAPTER 11 BASIC FUNCTIONS
Q24DHC-V Q24DHC-VG Q24DHC-LS
Description
Note11.7
Note11.7
Function
Q26DHC-LS Q12DC-V
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