30
1 FUNCTIONS
1.1 Input Function
Event time stamp function
This function records the time data when an input status changes.
When this function is used, the events in the entire system can be recorded in the correct order of occurrence based on the
time data and time stamp value recorded individually by the input module with diagnostic functions. This record helps
investigate a cause when a trouble occurs.
Up to 128 event time stamp data sets can be recorded in a module.
The event time stamp data recorded in the input module with diagnostic functions can be read to the CPU module and saved
to an SD memory card using function blocks (FB). (To use function blocks (FB), set "Target" to "Module Label" in "Refresh
settings".)
Module labels and function blocks (FB) cannot be used when the input module with diagnostic functions is used with a remote
head module.
To read the event time stamp data, use the REMFR instruction.
However, when the scan time of the CPU module is long, all the time stamp data set of the events which have occurred may
not be read.
Starting collecting event time stamp data
To start collecting the event time stamp data, set the parameter for using the event time stamp function and turn on and off
'Operating condition setting request' (Y12).
The event time stamp data is collected at the interval of 200
s.
When the status of an external input changes, the time data at the change, the set condition (rise or fall), and the terminal
number of the changed input are stored in Event time stamp data (Un\G4608 to Un\G5375).
Accuracy
The accuracy of the time data of the event time stamp data is 1ms.
The accuracy of when the module is mounted on a slave station of CC-Link IE Field Network is 730ms at a
maximum.
ON
OFF
ON
OFF
Time data A
External input
(X0)
External input
(X1)
Time data A, rising edge, X0
Event time stamp data
(Un\G4352 to Un\G5375)
Time data B, rising edge, X1
Time data C, rising edge, X0
Time data C
Time data B
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