ABB AC500-S Safety User Manual page 401

C.5.2.2 Checklist for cyclic non-safe data exchange
No. Item to check
1. Make sure that only safety functions with up to SIL 2 (IEC 61508 and
IEC 62061) and PL d (ISO 13849-1) will be triggered if sending data using
cyclic non-safe data exchange.
Note:
If cyclic non-safe data exchange is used to send safety-critical data, then
SIL 3 (IEC 61508 and IEC 62061) and PL e (ISO 13849-1) safety require-
ments 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 if sending
data using cyclic non-safe data exchange or use PROFIsafe safety output
to trigger safety functions.
2. Verify that the variable names of cyclic non-safe data exchange which are
created for the safety CPU do not start with "S_", "GS_", "IS_" or "OS_".
Reviewer(s):
Machine/Application <ID>:
Signature:
Date:
2020/06/19
NOTICE!
If you use the compatibility mode
V2 to AC500 V3 (compatibility mode)" on page 400, use the checklist for cyclic
non-safe data exchange with AC500 V2
data exchange" on page 383.
3ADR025091M0208, 12, en_US
Usage of safety CPU with V3 non-safety CPU PM56xx
Ä Appendix C.5.2.1 "Migration from AC500
Ä Appendix B.5.2 "Cyclic non-safe
Fulfilled
(yes / no)?
Comment
401