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Kamstrup A/S • 55121600_A4_GB_03.2015
MULTICAL® 6M2
10 Plug-in modules
MULTICAL® 6M2 can be extended by a range of extra functions by means of plug-in modules. The
individual modules are briefly described below.
10.1 Module overview
MULTICAL® 6M2 Communication top module
Type No.
Description
Module No.
602-0C
2 pulse outputs for CE and CV
5550-1163
MULTICAL® 6M2 Communication base modules
Type No.
Description
Module No.
67-00-20
M-Bus + pulse inputs (VA, VB)
5550-831
67-00-24
LonWorks, FTT-10A + pulse inputs (VA, VB)
5550-1128
67-00-66
BACnet MS/TP (B-ASC) RS-485 + 2 pulse inputs
5550-1240
67-00-67
Modbus RTU + 2 pulse inputs
5550-1277
10.2 Module description
10.2.1 2 pulse outputs for CE and CV, type 602-0C
This top module has two configurable pulse outputs, which are suitable for volume and energy
pulses for heat meters, cooling meters and combined heat/cooling meters.
The pulse resolution follows the display (determined by the CCC-code). E.g. CCC=010 (q
p
0,6...1,5):
1 pulse/0.1 kWh and 1 pulse/0.001 m³.
The pulse outputs are optoisolated and withstand 30 VDC and 10 mA. Normally energy (CE) is con-
nected to 16-17 and volume (CV) to 18-19, but other combinations can be selected by means of the
PC program METERTOOL, which is also used for selecting the pulse at either 32 or 100 ms.
10.2.2 M-Bus, type 67-00-20 (rev. B1 or higher)
M-Bus can be mounted in star, ring or bus topology. Up to 250 meter points can be connected
depending on the M-Bus Master’s power supply and the total cable resistance.
