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Festo — CPX-F8DE-P — 2022-10d
System overview CPX-F8DE-P
This function mode serves to evaluate a mode selector switch or a rotary indexing table.
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Use only consecutive channel pairs for channel bundling.
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Activate this function mode for all channel pairs in use. Variants: 1 of 2, 1 of 4, 1 of 6 or 1 of 8.
The circuit diagram (
Fig. 15) shows as an example variant “1 of 4”. The directly consecutive channel
pairs E2/E3 and E4/E5 are used, both of which must be configured to function mode 9. The power
supply can be optionally switched from T2 or 24 V to one of the inputs E2, E3, E4, E5.
Required for this example: channel pairs E0/E1 and E6/E7 are not configured to function mode 9.
Functional safety
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PL c, Cat. 1/SIL 2
with tried and tested switches/sensors in accordance with EN 13849-2, Table D.3
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up to PL e, Cat. 3/SIL 3
with certified switches/sensors of an appropriate safety classification.
Multiple channel pairs in function mode 9
NOTICE
When evaluating more than two signals in a circuit:
• Use directly consecutive channel pairs.
When configuring two independent “1 of N” circuits on one input module:
• Ensure that the channel pairs used for the different circuits are not directly consecutive to one
another.
All permitted configurations for setting function mode 9 for multiple channel pairs are listed in the
next section.
Fig. 16: Function mode 9 for up to 2 circuits
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Set the remaining channel pairs as desired – but not to function mode 9.