Siemens SIMATIC ET 200SP Equipment Manual page 69

Response times
Maximum response time for discrepancy error for 1oo2 evaluation (one fault delay time, OFDT)
Maximum response time (T
Discrepancy time
T1p = Time for short-circuit test (sensor 1)
T2p = Startup time of sensor after short-circuit test (sensor 1)
T1s = Time for short-circuit test (sensor 2)
T2s = Startup time of sensor after short-circuit test (sensor 2)
72
) = 2 * T + Input delay + 2 * max (T1p + T2p, T1s + T2s) +
OFDT cycle
Digital input module F-DI 8x24VDC HF (6ES7136-6BA01-0CA0)
Equipment Manual, 10/2021, A5E50578307-AA