Event History Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.11

Event History Function

This function collects errors and alarms that occur on and operations executed on the pulse input module as event information
in the CPU module.
The CPU module collects the event information of the pulse input module and keeps it in the data memory inside of the CPU
module or on an SD memory card.
The event information collected by the CPU module can be displayed on an engineering tool to check the occurrence history
in a time series.
Event type Classification
System Error
Warning
Information
Security Warning
Information
Operation Warning
Information
Setting method
The event history function can be set from the event history setting window of the engineering tool. For the setting method,
refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
Displaying the event history
Access the menu window of the engineering tool. For details on the operating procedure and how to view the contents, refer
to the following.
 GX Works3 Operating Manual
Lists of event history data
The following tables list the events that occur on the pulse input module when the event type is set to "System" or "Operation".
• The event type is "System"
Event Event Event name
code classification
500 Information Carry over detection
• The event type is "Operation"
Event Event Event name
code classification
20013 Information Error reset for a channel
20040 Information Error clear
27000 Information Counter reset
Description
An error detected by the self-diagnostics in each module.
A warning (alarm) detected in each module.
The operation by the normal detection of the system that is not classified as Error or Warning, or the operation
performed automatically by the system.
Operation that is judged as an unauthorized access to each module.
Operation that is hard to be judged as the success of unlocking passwords or an unauthorized access.
Deleting (data clear) operations that may change the action. (These operations are not judged as errors by the
self-diagnostics.)
Operations performed by users to change the system operation or configuration.
Event details
Carry over was detected in the accumulating counter.
■Cause
'CH1 Accumulating count value' (Un\G2, Un\G3)
exceeded 99999999 when the ring counter was selected.
■Action
Set 'CH1 Carry over reset request' (Un\G387) to Reset
request (1).
Event details
An error reset request was issued.
■Cause
An error reset request was issued for a specified channel
by the user.
An error clear operation was executed.
■Cause
An error clear operation was executed by the user.
A counter reset request was issued.
■Cause
A counter reset request was issued for a specified
channel by the user.
Additional information
Corresponding channel number
Additional information
Corresponding channel number

• Corresponding channel number
• Preset setting value for
accumulating count value (for
the corresponding channel)
1 FUNCTIONS
1.11 Event History Function
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