PadPuls M1C

The 1-channel pulse adaptor PadPuls M1C allows the use of meters with pulse output as M -Bus slaves. So for example, data from a simple water or electricity meter can  central be read out by M-Bus.

  • Supplied by M-Bus, or integrated battery at an M-Bus failure, needs no power supply unit.

  • Full functional even if operated with battery.

  • Inputs: Floating contact or S0 (DIN 43864, IEC 62053-31)

  • Maximum pulse frequency 20Hz

  • Debouncing of pulses

  • Adjustable pulse values and pulse unit

  • M-Bus protocol according to EN1434-3

  • Fully parameterizable by M-Bus, including overwrite protection

  • Mounted on DIN rail

The PadPuls M1 series of devices connects meters with  contact  output to the M-Bus system. This is a simple and flexible solution for reading already installed counters and measuring meters for  electricity, gas, oil, water and heat.
The power for the impulse adaptor is taken from the M-Bus. An integrated battery maintains the count function in case of a  bus  voltage failure. The capacity of the battery allows operation without M- Bus connection for guaranteed 7 years.
During installation the PadPuls M1 can easily be adapted to the pulse output of the meter. The measured medium, the pulse value, the pulse unit and the initial meter count are nearly free adjustable to the individual meter by setup software. An integrated security feature prevents data configuration after installation without opening the sealed housing.

Technical Data

Power supply

supplied by the M-Bus, switches automatically to battery at bus faillure

Bus operation

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

Battery expectancy

only battery operated 7 years

Temperature range

0 .. 55 °C

Pulse frequency

max. 20 Hz

Floating contact

internal supply (3V, 3μA) debouncing time 1ms

S0 according to DIN43864

auxiliary 12..27VDC, 30mA
debouncing time 0.25 ms

M-Bus protocol

according to EN1434-3

Transmission rate

300, 2400 and 9600 baud (with Auto-Baud detect)


primary and secondary

Card IM001

H x W x D = 57 x 71 x 24 mm

Housing IM001G

wall mounted
black plastic
H x W x D = 90 x 130 x 43 mm

Housing IM001GC

rail mounted on TS35
light-grey plastic
H x W x D = 26 x 75 x 111mm


Order Information

Order Number



PadPuls M1C

including configuration software MBCONF

Copyright© 2018  Relay GmbH

Designed By T.McDowell