These days, software used in mechanical engineering is not just limited to classic areas such as the programming of logic controllers (PLC) or human machine interfaces (HMI); increasingly it must also undertake safety functions.
In order to meet these requirements, safety relay manufacturers are increasingly offering freely programmable systems. Externally they are designed just like standard PLCs, but they are usually characterized by multi-channel structures. The principle of redundancy guarantees safety through cross-monitoring. Read more
Wednesday, December 23, 2009
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