11 Safety Function
11.3 Safety Logic Circuit
11-19
HW1485509
HW1485509
Table 11-5: Input Types
No. Display Contents
1 Normally Open contact.
If the signal is TRUE (ON), then
this expression is CLOSED
(ACTIVE).
2 Normally Closed contact.
If the signal is TRUE (ON), then
this expression is OPEN
(INACTIVE).
3 Detect OFF
→ ON
Detect a rising edge of signal.
If the signal changes from
FALSE (OFF) to TRUE (ON)
then this expression is CLOSED
(ACTIVE) for only ONE cycle of
the Safety Logic Circuit.
Output to far right of t
his signal
must be a PU
LSE output type.
4 Detect ON
→ OFF
Detect a falling edge of signal.
If the signal changes from
TRUE (ON) to FALSE (OFF)
then this expression is CLOSED
(ACTIVE) for only ONE cycle of
the Safety Logic Circuit.
Output to far right of this signal
must be PULSE output type.