1 Description of functions
The Falcon MJ makes it possible to read out Honeywell / Elster water meters M100i and M120i
in a M-Bus system or via a digital pulse output.
FALCON MJ Pulse/M-Bus communications module
Once the meter index is configured via the M-Bus, the Falcon MJ will transfer the exact meter
index shown on the water meter's register. The free of charge software MBCONF can be used
for parameterization. Because of its intuitive user interface, MBCONF is very simple to use.
Another feature of the Falcon MJ is its due date function. The user can program an annual due
date. In conjunction with the unit's real-time clock with calendar function, the meter's current
index will be specially stored on the configured date at 00:00 (change of day to the reporting
date). A write-protect function prevents pre-set values from being modified. This write protection
can be improved by using a password (optional).
Warning: If this password get lost, the write protection cannot be disabled anymore!
When the module is connected to a M-Bus network, the device gets its power from the M-Bus.
The internal battery backs up operation even when the M-Bus has an failure. The battery is
already activated when the unit is delivered.
The Falcon MJ stores the meter index on the first day of every month at 00:00.
The Falcon MJ offers two different telegram types which are selectable by the user: The long
telegram contains all values, including monthly values. The short telegram does not contain any
monthly values. Even though the short telegram type may be selected, monthly values are
stored internally and are available later on for read out if the telegram type is changed.
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