[ RadSafe ] Interlock question

[roger.bryant at hubersuhner.com]

European Standard EN 60204-1997 prohibited programmable electronic equipment for category 0 (all power off)emergency stop functions) . Subsequently various programmable safety systems and bus systems have been approved and can be used.
There are quite stringent assessment requirements for these systems to ensure that they meet the required Safety Integrity Level (SIL). A lot of these systems include continuous dynamic testing. See EN 60518.

There is a lot of literature available from the various suppliers:

ABB JOKAB

PILZ

Allen Bradley Guardmaster

Best regards

Roger
Roger Bryant
HUBER+SUHNER AG
CH-8330 Pfaeffikon, Switzerland
LF Low Frequency Division
Prozess Techniker
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