Safety Functions - Festo CAMC-G-S3 Manual

2 Product description of safety module CAMC-G-S3
2.5

Safety functions

The safety functions have a two-part structure, which can be seen in all the functions:
Safety Function
Logic
&
Logic
Input
&
Signals
&
Fig. 2.13 Block diagram, general structure of the safety functions
Term/abbreviation
Logic Input Signals
Logic
Safety Function
VIN_xxx_RSF
VIN_xxx_CSF
VOUT_xxx_SFR
VOUT_xxx_SSR
[5x-x] xxx_ERR
Tab. 2.26 Legend for Fig. 2.13
Logic section (left part)
A configurable logic function (AND , OR gate in disjunctive standard format) is used to define which
input signals (LIN_x) are switched to the safety function for:
– requesting the safety function, VIN_xxx_RSF signal (Request Safety Function)
– terminating the request of the safety function, VIN_xxx_CSF signal (Clear Safety Function)
– selecting additional feedback signals (e. g. for SBC)
Festo – GDCP-CAMC-G-S3-EN – 1406NH – English
VIN
1 VIN_xxx_RSF
VIN_xxx_CSF
...
Explanation
Logical input signals
Logic, configurable for the safety functions using product terms
Safety function
Virtual input: Request safety function xxx (Request Safety Function)
Virtual input: Terminate safety function xxx request
(Clear Safety Function request)
Virtual output: Safety function xxx requested (Safety Function requested)
Virtual output: Safety function xxx Safe state reached (Safe State Reached)
Internal error signal: Error 5x-x
Safety Function
VOUT_xxx_SFR
VOUT_xxx_SSR
[5x-x] xxx_ERR
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