Purpose of U2: Supply of SC outputs
Supply voltage U2: 24 V
Type of supply voltage U2: DC
Potential isolation U2: Yes
Purpose of UINT1: Module supply

I/O expansion for PNOZmulti 2: Provides 8 digital inputs (DI) and 4 semiconductor outputs (DO) for extending the functionality of base units.
24 V DC supply with isolation: Outputs powered via a dedicated U2 supply (24 V DC) with potential isolation for enhanced safety and reliability.
Compact modular design: Space-saving form factor allows seamless DIN rail mounting alongside other modules in the PNOZmulti 2 system.
Flexible application integration: Suitable for monitoring safety devices and controlling actuators within configurable safety architectures.

The Pilz PNOZ m EF 8DI4DO (772142) is an expansion module designed for the PNOZmulti 2 configurable small controller system, offering additional inputs and outputs for enhanced safety and automation control. Compact and flexible, it provides an ideal way to scale safety systems as machinery requirements evolve, supporting applications from simple monitoring tasks to complex multi-device architectures.

This module features 8 digital inputs (DI), enabling the connection and monitoring of safety devices such as emergency stop buttons, guard switches, enabling devices, and light curtains. By expanding input capacity, the module allows engineers to integrate multiple safety devices into a single system, ensuring reliable monitoring of all access points and hazardous areas.

In addition, the module provides 4 digital outputs (DO), which can be used for controlling safety actuators, signalling devices, or other connected equipment. These outputs are powered through a dedicated 24 V DC SC supply (U2), ensuring that the safety outputs remain stable and reliable even during challenging operating conditions. This separation of supply also improves fault tolerance and safety system integrity.

The internal voltage (UINT1) is sourced directly from the PNOZmulti 2 base unit, simplifying wiring and reducing commissioning effort. Integration into the system is seamless, with the expansion module automatically recognised by the base unit when connected. Engineers can then configure the additional inputs and outputs using the PNOZmulti Configurator software, a user-friendly graphical interface that enables drag-and-drop programming of safety logic without the need for complex coding.

The PNOZ m EF 8DI4DO module is designed with flexibility and scalability in mind, making it suitable for both standalone machines and complex production systems. Its modularity allows safety systems to grow alongside machinery, avoiding the need for costly redesigns when requirements change.

Built for industrial reliability, the module supports compliance with international safety standards including EN ISO 13849 (up to PL e) and IEC 62061 (up to SIL 3). Its rugged design ensures long-term stability in diverse industrial environments, from automotive assembly lines and packaging plants to process automation and robotics applications.

In summary, the Pilz PNOZ m EF 8DI4DO (772142) is a scalable, flexible, and robust expansion module that enhances the capacity of the PNOZmulti 2 small controller system. With 8 digital inputs, 4 digital outputs, a dedicated 24 V DC output supply, and seamless integration via the base unit, it provides an efficient and reliable solution for extending safety and automation functions in modern industrial environments.