INTEGRATED OR SEPARATE?

Safety controllers are becoming increasingly popular as an alternative to relay modules, even on smaller machinery. The designer can opt for one of two concepts: some designers favour integration of safety into the automation PLC, but a separate (small) safety controller offers clear benefits.

Authors: Christian Lumpe and Tobias Thiesmann, Product Manager for Control Systems, Schmersal Group
Source: SPS-Magazin, issue 06-2021

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