Title: +135.01=370.001-OE401T_02-320 Datablad Energimåler UH50.._.pdf
In addition to possible power supply from the M-bus connection, the WZU-MI module is equipped with a battery. It powers the module processor and the pulse input, if no M-bus voltage is applied. Either isolated contacts (e.g. relay or Reed contacts) or electronic transmitters (open collectors) can be used as pulse transmitters for the pulse inputs. If an open collector circuit is used as the transmitter of the pulse inputs, the cable must always be electrically isolated from the M-bus inputs of the WZU-MI module.CE2N5324en 2018-08-18Building TechnologiesBACnet/Modbus module WZU-485E-BAC WZU-485E-MODThe processor unit uses both modules to communicate over ModBus® or BACnetTM. The ModBus® module is suitable (and preconfigured) for data transmission per the ModBus®-RTU protocol over RS485. The BACnetTM module is suitable (and preconfigured) for data transmission per the BACnetTM protocol over RS485 and BACnetTM MS/TP.Technical designWZU-485E-MOD