Integration of pumps into building automation is achieved using an IF-Module. Stratos high-efficiency pumps have already been modified into CAB-Bus-capable versions.
Compared with other systems, CAN-Bus is said to offer significant cost advantages. In particular, the network can be constructed in a line structure, to which all devices are connected in parallel. Wiring, material and manufacturing costs are reduced because star-shaped wiring is not longer required.
Wilo’s CAN-Bus is an open system that can be interfaced to BACnet, Ethernet, EIB, KNX, LON, DALI or ProfiBus. CAN-Bus works by the multi-master principle, which means that all switchgears have master functions and are addressed equally. CAN-Bus can also be operated by the master-slave principle.
Individual pumps are addressed using Wilo’s red-button technology, which is shown on the pump’s display. Other operating parameters can be set, modified or called in this way.
Other functions include selecting between heating or cooling/air-conditioning mode, which differ in terms of their deactivation behaviour in the event of faults.
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Keywords: pumps, Wilo
