Safety Controllers for Distributed Safety Applications

Jan. 28, 2019
By increasing modularity and scalability, a new generation of Beckhoff TwinSAFE safety controllers permits optimum adaptation to the specific safety requirements of individual machine concepts.

The ability to distribute the intelligence of an entire safety application across multiple I/O modules means flexible implementation of increasingly modular architectures. These safety architectures can adapt to varied system requirements more effectively than in the past. The new I/O components include the EL1918 TwinSAFE EtherCAT digital terminal with eight safe inputs, the EL2911 TwinSAFE EtherCAT safe potential supply terminal with four safe inputs and one safe output, and the EP1957-0022 TwinSAFE EtherCAT Box: IP67-protected digital combi module with eight safe inputs and four safe outputs. The new I/O modules can be used as controllers for the direct execution of user-specific safety projects. A special feature is their communication capability. Like a dedicated controller, the safety project on the corresponding TwinSAFE I/O component can establish direct communication relationships with other safety-relevant devices and pre-process the data internally. This makes it possible to implement highly granular machine modules with distributed safety applications. The central safety controller, if it exists in the application scenario, only needs to process the data already accumulated.

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Beckhoff Automation
www.beckhoffautomation.com
952.890.0000