A standard input module with eight inputs is available as an expansion to the base unit, complementing the existing standard output modules. The module enables PNOZmulti to monitor safety functions such as emergency stop or safety gates economically, but also standard control functions.
The system makes it easy to implement enable mode. This is a combination of conventional and safe control. The safe output is switched on and off conventionally via signals from the standard input as with a normal PLC. Additional relays are no longer required, reducing hardware costs and simplifying the plant structure.
Enable mode can also be implemented when a standard fieldbus system is used to transfer the signals for the safe output. Fieldbus modules are available to connect the PNOZmulti to a standard fieldbus. Diagnostic, status and controller information is transferred directly from the controller to the safety system, via the fieldbus, saving additional wiring costs.
The standard functions are configured simply and quickly using the PC configuration tool, reducing wiring and hardware costs. The system can cover the functions of additional timers or small controllers.