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General Information
System expansion - decentral, safe AS-interface output slaves
With the system expansion focused on the safe connection of decentral, safe AS-interface output
slaves acc. to IEC 61508 SIL 3, additional device models with a safe AS-interface output are made
available. These models (ASM2E/1 / ASM2E/2) are used in the following applications:
1.
Safe integration and monitoring of AS-interface actuators or AS-interface actuator groups, e.g.
for enabling motor starters or valve units through the safe AS-interface output of the safety
monitor.
ASM2E/1
ASM2E/2
ASM2E/1
ASM2E/2
Host
+
Master
Safe 
AS-interface 
output
15A
31
15B
Safe AS-interface actuator/group 1
Safe slave address:
31
Standard A/B slave address: 15A/15B
30
17
30
18
30
TNT 35/7-24V
31
Safe 
AS-interface 
output
19
Safe AS-interface actuator/group 2
Safe slave address:
30
Standard A/B slave address: 17/18/19
Figure 1.2: Example - Monitoring of 2 decentral AS-interface actuator groups
Edition: 08/2012
Notice!
An AS-interface safety monitor can only monitor one actuator group.
AS-i safety monitor V 3.10 M
11
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