Functional Description - Relay PadPuls M1 User Manual

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1 Functional description

The PadPuls M1 serves for the adaptation to the M-bus system of consumption
measuring instruments, such as, current, gas or water meters. However, the meters to
be adapted must have a floating pulse output. The user can configure the PadPuls M1
with the MBCOPNF program so that the scanned impulses are converted to units such
3
as kWh, m , J and so on. The configuration is very easy with the MBCONF user
interface.
When connected to the M-bus the PadPuls M1 is powered from the bus. A built-in
battery ensures that metering continues even if the M-Bus fails for longer than the
normal calibration time for the water meter or heat counter. The battery also ensures
that the meter readings and the configuration data is maintained in RAM. The battery
jumper should therefore be plugged in at all times. The jumper serves only to
disconnect the battery from the circuitry should the battery need to be replaced.
Device data can be protected against unauthorized configuration. The PadPuls M1 can
be switched to protection mode with a special M-Bus telegram. Subsequent changes to
device parameters cannot be made in this operating mode. The protection mode can
then only be disabled by opening the sealable housing and pressing the unprotect
pushbutton.
2 26.09.01, Version 1.3 PadPuls M1 User Manual