PadPuls M2

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

  • 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.


Technical Data

Power supplyRemote supply by M-Bus with automatic switch to battery on bus fail
Bus operationmax. 1.5mA (1 unit load), no load of battery
Battery operationCurrent draw typ. 8μA
Battery lifetime 0,23Ah10 years at max. 80 failure days p.a. (changeable coin type battery)
Batterie lifetime 1,80Ah10 years at max. 250 failure days p.a.
Operating temperature0..55 °C
Pulse inputs2, individually programmable
Contact voltage2,5V .. 3,6V
Contact current30μA
Debouncing time5ms
Cable pulse generatormax. 10m
Requirements to contacts of pulse generators 
Potentialfree of potential
Resistanceopen > 1MΩ, closed < 2kΩ
Contakt duration, - pasuemin. 30ms
Pulse frequencymax. 14 Hz
Tariff signalpotential free (data see above)
M-Bus protocolaccording to EN13757-2 and -3
Baudrates300, 2400 and 9600 baud (automatic detection)
MountingWall mounitng
Protective classIP54 (IP65 possible)


Ordering information

Order NumberDescription
IM003GPadPuls M2

Both versions including configuration software MBCONF