QUNDiS MHM5 Instrucciones De Montaje E Instalación página 35

Seal add-on module only after successful operational
startup!
4. Press in seals on the add-on module as far as the screw head
Immediately after placement, the module will make a connec-
tion with the arithmetic logic unit over the optical interface. A
successful connection is indicated on the display of the meter as
follows: "FA[Software-Version] "
After 2 minutes, the identity and the data of the heat metering
system are taken over (primary addresses continue to exist).
Only when the add-on module has taken over the heat
meter data permanently, may a communication with
the module be initiated on the M-Bus (e.g. the start of the
"wildcard search"). Only in this way is it ensured that the
module presents the heat meter data and is itself invisible at
the bus.
Calibration exchange
In case of calibration exchange, the M-bus add-on module is
dismantled from the heat metering system.
1. Loosen seals
2. Loosen bolts
3. Remove add-on module
The M-bus add-on module is mounted on the new heat meter-
ing system in accordance with the directions for operational
startup.
Parameterization
The parameterization of the heat metering system and arith-
metic logic unit must be implemented before the operational
startup of the add-on module directly on the meter.
18.03.2015 FUM5-00MO-DES-MHM5
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