Kamstrup M-Bus Master MultiPort 250D - Functionality Overview

5Kmstrup A/S • 5512853_C1_GB_01.2017
M-Bus Mster MultiPort 250D
2 Functionlity
Kmstrup M-Bus Mster MultiPort 250D is n M-Bus mster designed for the connection of up to 250 meters with
M-Bus interfce. The cble length of  mster cn be up to 2800 m depending on cble type.
The mster supports primry, secondry nd enhnced secondry ddressing. Enhnced secondry ddressing is
supported when the mster is used s level converter, not when reding vi the disply.
All inputs re glvniclly seprted from the M-Bus network.
When designing the mster, it hs been considered importnt tht instlltion nd nlysis work cn be effected
directly from the mster without hving to connect  PC with dedicted softwre.
Configured s  mster, MultiPort 250D is operted vi its disply nd the six front keys.
The disply hs been designed with  user-friendly menu structure, which mkes it simple to perform scnning,
reding nd nlysis of the M-Bus network. Furthermore, the disply currently provides informtion on network sttus
such s current communiction nd number of connected meters (Unit Lods).
Configured s  level converter, one or severl of the integrted communiction ports re connected to  reding
system,  control unit or similr. Communiction is controlled from the connected units.
MultiPort 250D cn be ccessed from ll vilble communiction ports. The integrl port controller prevents collision
in cse of simultneous communiction through more thn one port.
When the port controller detects communiction on one port, communiction on other ports becomes impossible.
When communiction on one port is finished, ll ports re open to communiction.
The repeter function mkes it possible to extend the size of the M-Bus network both s to number of meters nd totl
cble length. If one mster nd four repeters re instlled in  network, the totl cble length cn be extended to
pprox. 14 km, nd up to 1250 meters cn be connected.