Siemens has released its modular safety system — the Sirius 3RK3 series that combines the functionality of a safety relay and a fail-safe programmable logic controller.
The core of the system is the central unit with eight safety-related inputs, one safety-related relay output and one safety-related solid-state output. Up to seven safety or standard expansion modules can be connected to the central unit.
The expandability makes the one system easily scalable for applications from three to 40 functions.
The system requires no wiring due to its modular design and extra functions can be added by installing additional expansion modules.
The ES (MSS ES) parameterisation software can replace individual function wiring by fast online parameterisation.
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