Response Times; Safe Response Time Of Digital Inputs In The Event Of A Failure - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-667/000-003 4FDI/4FDO 24V/2A PROFIsafe V2 iPar
4.6.10

Response Times

4.6.10.1

Safe Response Time of Digital Inputs in the Event of a Failure

Only use response times in the event of a failure for the safety response
time!
To prevent any personal injury or property damage, only use the values of the
safe response time for errors for defining the safety response time.
For the safety response time, take into account the execution times of the
local bus, fieldbus and cycle time of the safe PLC!
To prevent any personal injury or property damage, always take the execution
times of the local bus and of the fieldbus and the cycle time of the safe PLC into
account when calculating the safety response time.
The safe response time of the digital inputs indicates the maximum time from a
signal change on one single-channel input or two two-channel digital inputs to
preparation of the PROFIsafe telegram on the local bus. It is part of the safety
response time of a safety application.
Therefore, take into account the execution times or response times of the safe
sensors and actuators used, local bus, fieldbus, as well as the cycle time of the
safe PLC when designing the safety response time.
The safe response time of the digital inputs significantly depends on the
configured input filter time. Changing the input filter time changes the safe
response time of the digital inputs.
The safe response time can differ depending on the device configuration for each
digital input or for the individual input pars (for dual channel evaluation). You can,
for example, set the Dual channel evaluation parameter to "yes" and the value
of the Valence evaluation to "Equivalent". In this case, the affected input pair
has a quicker safe response time than, for example, a single-channel digital input
used or if you have set the Valence evaluation parameter to "Antivalent". The
safe response times listed in the following table refer to an individual digital input
or an individual input par that is analyzed two-channel.
Configuring the F I/O module is described in the section "Parameteriziation of the
F I/O module with the WAGO Parameterization Tool".
Version 1.4.2, valid from HW/SW Version 01/02
Device Description
Manual
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