AS-Interface 3SU14
11.9 Connecting
SIRIUS ACT 3SU1 pushbuttons and signaling devices
274 System Manual, 08/2018, A5E03457306020A/RS-AK/010
Connection with AS-Interface modules
Connection options
● Conventional connection with AS-Interface
● Safe connection using ASIsafe
● With 3SK1, 3RK3 safety relays
● Connection to distributed I/O ET 200SP, SIMATIC S7-1500
Safe communication via ASIsafe
Safety-related components can be integrated in AS-Interface by means of ASIsafe – up to
PL e as per ISO 13849-1 or SIL 3 as per IEC 62061. Use the yellow AS-Interface cable to
make this connection.
Safe and standard I/O modules are installed and operated together in a single network.
Safety-related data is transferred over the existing standard bus.
Connecting the ASIsafe modules for front plate mounting
When connecting, note that the maximum cable length up to the first mounting support must
be ≤ 100 mm.
Maximum current I
max
= 8 A.
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