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Data Processing Timing Appendix C
Example 3 Timing Hold: Maximum hold
No. of Mean Value Processings: 2
Input Sampling Speed: Fast
Data Read
When a ladder program is used to automatically read the data to be input, the data is sampled in synchroniza-
tion with timing input. Therefore, the CPU used with the Unit must read the data in synchronization with the
sampling timing.
Timing Input Connected in Parallel
The timing signal can connect with the TIMING/GATE terminal and the input word of the CPU in parallel as
shown in the following illustration to synchronize the operation of the CPU and the sampling timing of the Unit.
The Unit requires time to process input and to set data to its input word corresponding to the input. The actual
data reading timing must be later than the moment timing input to the Unit is ON. The input process time varies
with the timing hold currently selected. The following is the input process time with its timing hold set to sam-
pling hold.
Maximum hold processing This value is invalid.
Waiting for next
timing input
Timing input
B'B'
CQM1-LSE01/LSE02
CPU
Timing signal
Input sampling Operation process and data set
Time required until the data is set.
Timing input
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