Belimo UK24BAC - MP-Bus to BACnet MS/TP gateway

Belimo UK24BAC gateway

UK24BAC provides digital control of actuators via MP-Bus and makes their current status available through BACnet objects. The BACnet MS/TP side uses an electrically isolated RS-485 interface.

Key features and technical data

• MP-Bus – BACnet MS/TP interface; supported actuators: MP/MPL/MFT(2) and BF-TopLine, max. 8 units.
• Nominal voltage: AC 24 V, 50/60 Hz / DC 24 V; supply voltage range: AC/DC 21.6…26.4 V.
• Communication with actuators: Belimo MP-Bus, Client-Server, 1'200 Bd.
• BACnet MS/TP: max. 32 nodes without a repeater; speeds of 9'600, 19'200, 38'400, 76'800 Bd, set using DIP switches.
• 120 Ω termination and 510 Ω biasing, set using DIP switches.
• BACnet MS/TP and MP-Bus connections: 3-pin plug-in screw terminals; power supply: 2-pin plug-in screw terminals.
• Installation in a control cabinet on a 35 mm rail; ambient temperature: 0…+40 °C.
• Protection rating: IP20.

One sensor can be connected to each MP/MFT(2) actuator: a passive resistive sensor, an active sensor with a DC 0…10 V output, or a switching contact. MPL actuators do not have a sensor input. The length of MP signal cables depends, among other factors, on the number and type of actuators, the power supply arrangement and the cable cross-section.