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Technical Description
Response Time
Response time is the period between the input signal change and the output signal change.
This time is typically the sum of the following elements (see also Figure 2-15):
•
the inherent delay of the input module
•
the program scan time
The delay of the output modules is negligible.
1
I 0.0
0
1
Q 1.0
0
Program scanning
n -1
Under worst-case circumstances, the response time is twice the program scan time.
2-26
Response Time
Input
module
delay
Program scanning
n
Figure 2-15. Response Time
S5-115U Manual
Time
Program scanning
n +1
EWA 4NEB 811 6130-02b
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