Ensure that the expansion modules are compatible with the specific model of the base unit you are using. Pilz provides detailed documentation and wiring diagrams for integrating these modules. Expansion modules are typically mounted adjacent to the base unit on a DIN rail and connected via dedicated terminals or bus connections. Safety solutions provider since 2011, We offer Pilz.
Both the base units and expansion modules must adhere to relevant safety standards, such as IEC 61508 or ISO 13849, to ensure reliable and compliant safety functions. http://www.pilz.com These provide additional safety contacts that mirror the switching state of the base unit without any delay. They are used when immediate action is required in response to a safety condition.