Bihl+Wiedemann
Integrated safety unit up to SIL3
The BTL-certified ASi BACnet/IP controller with integrated safety unit up to SIL3 BWU4001 from Bihl+Wiedemann combines the advantages of BACnet, ASi and ASi Safety in one device.
This makes it suitable for controlling safe fire protection and smoke extraction dampers, for example. All data from the field level is available in BACnet via the ASi BACnet/IP controller, without the need for additional 'converters'.
The device, which has two ASi masters and an integrated safety unit, can be used as a stand-alone small controller for safe fire and smoke dampers, which typically achieve a safety level of SIL2. However, it can also be connected to a higher-level BACnet DDC or GLT and thus act as a gateway between the control system and the ASi installation. Diagnostic functions for fast system analysis are then available via BACnet, web server or as a plain text message on the gateway's integrated display.
Bihl+Wiedemann at the SPS 2021: Hall 7, Stand 200
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