Making safety interlocks bus capable

Bihl+Wiedemann now offers ASi Safety active distributors with integrated ASi chip especially for Schmersal and Pilz interlocks. They are used to easily incorporate safety interlocks from these manufacturers into ASi systems : The connection between the interlock and our module is done with 8-conductor M12 cables integrated into the active distributor. The cable length between the distributor and interlock thus has no effect on the allowable total length of the ASi network.

Position safety interlocks as desired

Their especially compact form factor is ideal for cable ducts, allowing you freedom in cable routing paths. And thanks to pre-assembled cables you save hardware costs and wiring time while at the same time minimizing possible wiring mistakes.


Versions for interlocks from other manufacturers are available on request.

Fig.: ASi active distributor for Schmersal AZM400 safety interlocks ( BWU3565 )

Technical details for the new active distributors for safety interlocks

  • Pin configuration for
    • Interlock AZM400 from Schmersal ( BWU3565 )
    • Interlock AZM200 from Schmersal ( BWU3635 )
    • Interlocks from Pilz ( BW3488 )
  • Especially flat form factor, can be installed in cable duct (B × H × T: 60 × 45 × 19 mm)
  • 1 two-channel safe input, 1 digital input
  • 1 digital output In- & output voltage provided from AUX (24 V auxiliary power)
  • Connection of ASi and AUX using profile cable
  • Connection of periphery using 1 × M12 socket (straight, 8-pin)
  • Protection rating IP67

Questions about our products and solutions?