Mitsubishi MELSEC-WS series, User Manual

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Chapter 14
142
Annex
14.5 Example for the calculation of the response time
of Flexi Line
Calculation of the response time for a MELSEC-WS safety controller:
Flexi Line Station A
Logic execution time = 4ms
Flexi Line update rate = 2ms
Occurrence In1: Digital inputs Occurrence Out2: Output to EFI device
General Tactile sensor 0ms General Response time of the
actuator (Robot response
time)
40.0ms
General Input processing time 6.5ms
When On/Off filter 8.0ms – When Flexi Line
data are used
logic execution time 4.0ms
When X1 … X8 is connected
at the test output... – – General Output processing time 4.5ms
Total Output 56.0ms
Occurrence Output : Output to Flexi Line
Output to Flexi Line – –
Total In1 6.5ms Total Output 0ms
Evaluation1
1. Inputs Response time of the considered input in
the signal path In1 6.5ms
2. Logic
Response time of the logic
2 × logic execution time 8.0ms
Delay through logic application –
3. Outputs Response time of the considered output in
local out2 56.0ms
Total response time (remote input to local output) 70.5ms
Evaluation2
1. Inputs Response time of the considered input in
the signal path In1 6.5ms
2. Logic
Response time of the logic
2 × logic execution time 8.0ms
Delay through logic application –
3. Outputs Response time of the Flexi Line output Out2 0ms
Total response time (Response time of the Flexi Line output) 14.5ms
Figure 62:
Response times within a
MELSEC-WS safety
controller