PLC system
Process control with functional safety
With its Modicon M580 Safety PLC system, the automation company Schneider Electric is now combining the performance of the M580 series with a safety-oriented co-processor. According to the manufacturer, this enables the simultaneous, standard-compliant execution of automation tasks and safety applications (SIL3/Ple) on one PLC control unit.
The manufacturer's overall solution concept supports the standardization of functional safety applications with process control and is designed to ensure the protection of the entire operating environment. The product has a redundant design to ensure correct operation. While one processor is responsible for executing the safety functions, a second processor ensures the integrity of the computing operations.
According to Schneider Electric, an error in the standard part therefore does not lead to a failure of the safety system or influence the system safety and the connected protective devices. Both safety and PLC applications should also only require a single programming software (Unity Pro XLS). The product fulfills the safety requirements in accordance with IEC 61508/61511. sw









