Kamstrup M-Bus Master MultiPort 250D - Default Chapter; Table of Contents

2 Kmstrup A/S • 5512853_C1_GB_01.2017
M-Bus Mster MultiPort 250D
Contents
1 Introduction 4
1.1 Design 4
2 Functionlity 5
2.1 Overview of functions 7
3 Connections 8
3.1 Overview of connections 9
3.2 Power supply 10
3.3 USB 10
3.4 RS-232 14
3.5 RS-485 15
3.6 Opticl eye 15
3.7 M-Bus Output 15
3.7.1 Current nd voltge 15
3.8 M-Bus Repeter Input 16
4 Cbling 17
4.1 Specil fetures of M-Bus Mster MultiPort 250D
18
4.2 Electricl conditions in n M-Bus network 18
4.2.1 M-Bus modules 18
4.3 Instlltion prmeters 18
4.3.1 Cble 19
4.3.2 Cble topology 20
4.3.3 Exmples of network sizes 23
5 M-Bus ddressing 24
5.1 Primry ddressing 24
5.2 Secondry ddressing 24
5.3 Enhnced secondry ddressing 24
6 M-Bus communiction 25
6.1 Communiction speed 25
6.2 Trnsprent reding 25
7 Opertion of M-Bus Mster MultiPort 250D 25
7.1 Keys 26
7.2 Light emitting diodes 26
7.2.1 Power 27
7.2.2 Request 27
7.2.3 Dt 27
7.2.4 Overlod 27
7.3 Disply 27
7.4 Menu overview 28