7.3 Pulse inputs VA and VB
In addition to pulse inputs V1 and V2, MULTICAL
801 has two extra pulse inputs, VA and VB, for collection and
remote accumulation of pulses from e.g. cold-water meters and electricity meters. The pulse inputs are physically
placed in ”Module 1” like e.g. in ”M-Bus + pulse inputs” which can be placed in the connection bracket, but
accumulation and data logging of values is carried out by the calculator.
Pulse inputs VA and VB function independently of the other inputs/outputs and are therefore not included in any
energy calculation either.
The two pulse inputs are identically constructed and can be individually set up to receive pulses from water meters
with max. 1 Hz or pulses from electricity meters with max. 3 Hz.
Configuration for correct pulse value has been carried out from the factory based on order information or is
configured by means of METERTOOL. See paragraph 3.6 concerning configuration of VA (FF-codes and VB (GG-
codes).
MULTICAL
801 registers the accumulated consumption of the meters connected to VA and VB and saves the
counter values every month and every year on target date. In order to facilitate the identification during data reading
it is also possible to save the meter numbers of the two meters connected to VA and VB. Programming is carried
out with METERTOOL.
The registration, which can both be read from the display (selecting a suitable DDD-code) and via data
communication, includes the following as well as date indication of yearly and monthly data:
Type of registration
Counter value Identification Yearly data Monthly data
VA (accumulated register)
•
Meter number VA
•
Yearly data, up to latest 15 years
•
Monthly data, up to latest 36 months
•
VB (accumulated register)
•
Meter number VB
•
Yearly data, up to latest 15 years
•
Monthly data, up to latest 36 months
•
Counter values VA and VB can be preset to the value of the connected meters at the time of commissioning by
means of METERTOOL.
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