ABB AC500-S Safety User Manual page 395

C.5.2 Cyclic non-safe data exchange
How to use 1.
cyclic non-safe
2.
data exchange
2020/06/19
DANGER!
If cyclic non-safe data exchange is used to send safety data from safety CPU to
non-safety CPU, then SIL 3 (IEC 61508 and IEC 62061) and PL e
(ISO 13849-1) functional safety requirements will not be fulfilled for sent data
(independently on application safety communication profile used), because only
one microprocessor (no 1oo2 safety architecture in the background) on safety
CPU handles the sending direction.
Contact ABB technical support on how to reach SIL 3 and PL e, or use
PROFIsafe safety outputs, e.g., from DX581-S to trigger safety functions.
DANGER!
It must be guaranteed by proper Automation Builder user management configu-
ration that only users of the safety group are allowed to implement cyclic non-
safe data exchange.
Right-click on the safety CPU node and select "Add object" .
Select "Cyclic non-safe data exchange" .
ð Cyclic non-safe data exchange instance is added to the safety CPU node.
3ADR025091M0208, 12, en_US
Usage of safety CPU with V3 non-safety CPU PM56xx
395