Data Sheet for Product

6
Building Technologies
CE2N5323_en--_b
2018-01-23
Parameter settings via the meter
The following parameters can be entered directly on the meter using both operating buttons:
● Next due date
● Display of kWh or MWh/MJ or GJ
● Selection of levels to be displayed
● Display of meter read outs with or without checksum
In addition for devices with solar modification:
● Ratio of glycol on solar plants
Communication
The meter is supplied with an optical close-range interface.
Add-on modules
The following external communication modules are available:
● M-bus module WFZ51
● RF add-on module WFZ662
The ACT50 software can be used to configure the RF add-on module.
M-bus module WFZ51
Function description
The M-bus module (WFZ51) enables the meter to communicate with an M-bus central
communication unit to transmit the measured values. The module can be read out 24/7 as
often as you want via M-bus. The heat meter measured values are read out and saved from
the module at 10-minute intervals.
Readout parameters
The following parameters are read out via the M-bus interface:
● Device number (8 digits)
● Medium/software version
● Time/Date
● Error state (readout 5 or 45 times a day)
● Error date