The ProSafe-PLC system consists of a series of plug-in modules, each dedicated to a particular task. The two categories of ProSafe-PLC modules include control modules and I/O modules. Control modules execute any combination of four distinct control languages (function block, ladder logic, sequential function chart or structured text), while a series of I/O modules act as an interface between the control module and field termination signals.
A wide range of safety critical discrete, high-level analog, low-level analog and non-critical discrete type modules are available.

ProSafe-PLC’s architecture brings these safety system elements together in a scalable and flexible manner. The modular controller hardware and operator interface options allow the system to start very small and grow incrementally at minimal cost. Expansion or new technology can be accommodated by simply adding modules.
A ProSafe-PLC system is created for a particular application by simply selecting functionality as individual modules and populating a module rack such as the ten-slot MODULRACK.