Response times
D.1 Response Times
Fail-safe signal modules
324 Installation and Operating Manual, 01/2010, A5E00085586-10
Response time of SM 336; AI 6 x 13Bit
Calculation of the response time (conversion time) of SM 336; AI 6 x 13Bit (with and without
active fault) according to the following formula:
Response time = N × response time per channel + basic response time
Where N represents the number of activated channels
Example all channels connected (N = 6), interference frequency = 50 Hz:
Response time = 6 x 50 ms + 50 ms = 350 ms
If an error occurred, the response time is extended by the assigned discrepancy time if "2
sensors” was assigned and the signal has no safe failure direction (or the assigned
“standard value” does not conform with the safe failure direction).
Note
Calculate the maximum response time by inserting the maximum values derived from
Technical data - SM 336; AI 6 x 13Bit (Page 218) of the SM 336; AI 6 x 13Bit in the formula
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