Up to four printed circuit board modules can be connected per SFB – each of which can be used to connect further digital I/O components. This results in optimum flexibility for customised automation applications.

A particular advantage of the SFB port extension is the ability to connect a larger number of non-safety-related switching devices to the SFB. These can be easily connected and evaluated via the three supported fieldbus protocols – ideal for heterogeneous system environments. Power is supplied directly via the SFB connection, reducing installation costs and simplifying system integration.

Key features at a glance: Plug-in module for customer-specific control boxes, e.g. with illuminated pushbuttons, emergency stop or other digital I/O devices; up to 4 port extensions can be connected per SFB; 8 digital inputs (24 VDC) for electromechanical or electronic switches; 8 digital outputs (24 VDC / 300 mA) for LED indicator lights, lamps and other loads (max. total current 800 mA), 2-channel safety input for connecting safety switches with contacts

With the SFB port extension, Schmersal offers a future-proof solution for expanding decentralised control systems in a compact, powerful and versatile manner.