PILZ PSS u2 B 4

The PSSu2 B 4 by Pilz refers to a base module within the PSSu2 series of industrial automation systems. The B designation indicates that it is a base module, serving as the central unit for connecting and managing other components within a modular control or safety system. The 4 in the designation typically refers to the specific version or configuration, which may include the number of slots or communication interfaces available for expanding the system. This base module is essential for integrating input, output, and safety modules, providing a flexible foundation for control and automation systems in industrial applications.