32
1 FUNCTIONS
1.1 Input Function
Setting for not-refreshed data
Whether to overwrite the event time stamp data which have not been read can be set for when an external input status
changes 128 times or more before the CPU module refreshes the event time stamp data.
• When the event time stamp data is not overwritten (default), the 128 data sets which have not been read are held and the
subsequent data sets are discarded.
• When the event time stamp data is overwritten, the data is overwritten with the 129th data set or later from the oldest one
even if the data to be overwritten has not been read.
In the following cases, 1 (Discarded/Overwritten) is stored in 'Event time stamp storage status' (Un\G4354).
• When "Data setting which the refresh is not completed yet" has been set to "Don't overwrite" and the data is discarded
• When "Data setting which the refresh is not completed yet" has been set to "Overwrite" and not-refreshed event time stamp
data is overwritten.
Setting procedure
Set the following items from "Application setting".
• "Event time stamp function enable/disable" (
Page 99 Event time stamp function enable/disable)
• "Event time stamp condition setting" (
Page 100 Event time stamp condition setting)
• "Data setting which the refresh is not completed yet" (
Page 100 Setting for not-refreshed data)
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Summary of Contents for MELSEC iQ-RX40NC6B
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