Siemens SIMATIC ET 200SP HA Manual page 34

Technical specifications
Cycle time
The cycle time describes the period of time in which the signals from the inputs are acquired
and processed. The cycle time of the I/O module is 4 ms.
Minimum pulse length
In order for a pulse or an edge transition to be reliably detected by the I/O module or the partner
module (at IO redundancy failover), the signal status must be active for at least for the time
period of the minimum pulse length.
Operating mode
Stand-alone operation
I/O redundancy mode
Each edge transition is detected after a delay of no more than the specified minimum pulse
length. This has a corresponding effect on the time stamps for SoE (Sequence of Events),
Redundancy failover time
With an I/O redundancy failover, the update time of the process values or the detection of an
edge transition is delayed once by a maximum of this time.
The redundancy failover time of the I/O module is 40 ms + input delay.
NAMUR sensors and connected contacts
Monitoring for short-circuit and wire break only for NAMUR sensors and connected contacts.
The response ranges of the diagnostics correspond to IEC 60947-5-6.
34
Minimum pulse length
Input delay + cycle time
40 ms + 2x input delay + 2 x cycle time
Digital Input Module DI 16xNAMUR HA (6DL1131-6TH00-0PH1)
Manual, 11/2017, A5E39293880-AB