ABB AC500-S Safety User Manual page 383

B.5.2 Cyclic non-safe data exchange
In Automation Builder, use the tab "Data exchange configuration" of safety CPU to configure
cyclic non-safe data exchange functionality. It enables data exchange between the safety CPU
and non-safety CPU for a fast cyclic communication and big data amount transfer via DPRAM.
In most safety applications, this functionality is not needed and shall not be used. As default,
checkbox "Cyclic non-safe data exchange" is unselected. If you still need it, please refer to the
description on how to use cyclic non-safe data exchange functionality, available via
www.abb.com/plc - document no. 3ADR025195M0202.
Cyclic non-safe data exchange with AC500 V2 CPUs is supported from Automation Builder
1.0.1.
2020/06/19 3ADR025091M0208, 12, en_US
Usage of safety CPU with V2 non-safety CPU PM5xx
383