User Documentation

3 System description of safe I/O modules | Processing time
14 1484600000/07/11.2020u-remote IP20 modules for functional safety manual
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+24 V DC
GND
DI X
AUX-O X
AUX-O Y
DI Y
+24 V DC
DI X (PN)
AUX-O X
AUX-O Y
DI Y (P)
+24 V DC
DI X (PN)
AUX-O X
AUX-O Y
DI Y (P)
GND module
Example for the operation without own test pulses
In the event that the module shall be used as
typeA source with disabled test pulses the DIX
input must be parameterised N-switching.
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DI X (N)
AUX-O X
AUX-O Y
DI Y (P)
Operation without own test pulses, typeA source with N-switching DIX
3.8 Processing time
The processing time of a signal within the safety chain can
be calculated as follows:
Input delay (parameterised)
+ Response time input
+ Response time output
+ Data transfer from and to the PLC
+ PLC computing time
= Processing time
The response times of the inputs and the outputs of safe
I/O modules are indicated in the technical data tables.