Title: +038=370.101-OE002T_02-Multical 801 Energimåler Kamstrup - Teknisk beskrivelse.pdf
11.1.3 The M-bus module is supplied through the M-bus network and is thus independent of the meter’s internal supply. Two-way communication between M-bus and energy meter is carried out via optocouplers providing galvanic separation between M-bus and meter. The module supports both primary, secondary and enhanced secondary addressing. The M-bus module has two extra inputs, which can only be used if modules are mounted in module position 1. See paragraph “7.3 Pulse inputs VA and VB” concerning the function of the pulse inputs.Limitations The maximum register value of the M-Bus Protocol is "2147483647", with the following main units: "10xm3", "10xkWh" and "10xMJ". This means that energy meters with 8-digit energy register in MWh or GJ cannot be read through the M-Bus. This applies, e.g. for MULTICAL® 801 with CCC code 206.RadioRouter + pulse inputs (67-00-21) (67-0W) (PCB - 5550-805)