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PadPuls M2

The 2-channel pulse adaptor PadPuls M2 allows the use of up to 2 meters with pulse output as M -Bus slaves.

PadPuls M2 | Relay Australia | M-Bus | Automation Industries
  • Two separated pulse inputs

  • Safe detection of up to 15 pulses per second at each input

  • Pulse debouncing

  • Pulse value free adjustable

  • Plug-in terminals simplify the installation wiring

  • Unit free selectable (e.g. Wh, kWh, MWh, kJ, m3, l,...)

  • Counter length: 8 decimal digits

  • Due-date function with integrated realtime clock

  • One yearly value and 15 monthly values (optional)

  • M-Bus protocol according to EN13757-2 and -3

  • Fully parameterizable by M-Bus, including overwrite protection

  • Transmission rate: 300 and 2400 baud with auto baud detection

  • Fully operable in case of M-Bus failure by integrated battery

  • Case for wall mounting W x H x D: 80 x 80 x 52 mm

  • Two battery options available

  • Protective class IP 54 (IP65 is possible)

The devices of the PadPuls M2 series adapt up to two conventional meters with pulse output to a M-Bus system. The two counter inputs are nearly free parameterizable and fit in already existing installations.
Optionally the user can activate a tariff function, by which energy or volume pulses can be accumulated in separate meter readings for primary and secondary tariffs. O one pulse signal and one changeover signal for the tariff are required, for example out of a ripple control receiver from the electricity supplier.
The integrated battery ensures that the impulse adaptor is fully operable, even if the M-Bus network fails. Additional security is provided by the periodic saving of the meter readings in nonvolatile memory.

PadPuls M2 Flow | Relay Australia | M-Bus | Automation Industries

Technical Data

Power supply

Remote supply by M-Bus with automatic switch to battery on bus fail

Bus operation

max. 1.5mA (1 unit load), no load of battery

Battery lifetime 0,23Ah

10 years at max. 80 failure days p.a. (changeable coin type battery)

Batterie lifetime 1,80Ah

10 years at max. 250 failure days p.a.

Operating temperature

0..55 °C

Battery expectancy

Current draw typ. 8μA

Pulse inputs

2, individually programmable

Potential-free contact

Contact voltage

2,5V .. 3,6V

Contact current


Cable pulse generator

max. 10m

Debouncing time



free of potential


open > 1MΩ, closed < 2kΩ

Contact duration

min. 30ms

Temperature range

Pulse frequency

max. 14 Hz

Tariff signal

potential free (data see above)

Floating contact

S0 according to DIN43864

M-Bus protocol

according to EN13757-2 and -3


300, 2400 and 9600 baud (automatic detection)


Wall mounting

Protective class

IP54 (IP65 possible)



Transmission rate


Card IM001

Housing IM001G

Housing IM001GC

Housing IM002GC

Order Information

Order Number



PadPuls M2

Both versions including configuration software MBCONF

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