20 MEMORY DUMP FUNCTION
20.2 Trigger Condition
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20.2 Trigger Condition
The following table lists the conditions to be used as a trigger. Set the trigger condition in the memory dump settings. (GX
Works3 Operating Manual)
On the occurrence of consecutive triggers, if the status of data save due to the previous occurrence of trigger is "Save
complete" of collected data, the next trigger is recognized as a trigger again. Note that events other than the above are not
recognized as a trigger condition.
A trigger can be generated with trigger conditions combined. (Page 151 Combining trigger conditions)
Device specification
Data are collected when the specified monitoring target data turns on during the END processing.
For monitoring data, the following devices can be specified.
*1 Index modification, and indirect specification cannot be specified.
*2 To specify these devices with the engineering tool, use T (contact): TS, ST (contact): STS, C (contact): CS, and LC (contact): LCS.
Even though the value of the monitoring target data changes during a single scan, if the value during the END processing is
same as that during the last END processing, it is not recognized as a trigger.
Trigger condition Description
Device specification Data are collected when the specified monitoring target data (bit data) turns on during the END processing.
At the occurrence of an error Data is collected using the SM0 (latest self-diagnosis error) OFF→ON as the trigger.
Type Device
*1
Bit device X, Y, M, L, F, SM, B, SB, T (contact)
*2
, ST (contact)
*2
, C (contact)
*2
, LC (contact)
*2
END END
Program
Data sampling starts.
Data condition
Trigger occurrence
1 scan
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