27Kmstrup A/S • 5512853_C1_GB_01.2017
M-Bus Mster MultiPort 250D
7.2.1 Power
Green light emitting diode which is lit when the mster is connected to supply power of 100-240 V, 50-60 Hz.
7.2.2 Request
Ornge light emitting diode which flshes briefly when commnd or request from the mster is trnsmitted to the
M-Bus network.
7.2.3 Dt
Ornge light emitting diode which flshes when n M-Bus slve sends dt to the mster. The durtion depends on the
mount of dt being sent.
7.2.4 Overlod
Red light emitting diode which flshes when the lod on the M-Bus network is between 375 nd 500 mA.
It is permnently lit when the lod on the M-Bus network exceeds 500 mA. 375 mA corresponds to 250 UL (M-Bus Unit
Lods). At 500 mA, M-Bus Mster MultiPort 250D disconnects due to overlod or short circuit condition.
7.3 Disply
The resolution of the bcklit disply is 128x64 pixels. The mster is operted by mens of the disply nd the six keys.
The four corners of the disply re used for four different types of informtion.
Title
Displys the nme of the menu, e.g. scn, or indictes whether the mster is configured s mster or s repeter.