Communication; Communication Via Radio; M-Bus Communication Module - meibes Rossweiner Heatsonic Instructions D'installation

7. Expansion modules

7.2 Communication

Communication modules must be secured so that opening of meters is only possible by destroying the
securing points.
The calculator supports three communications channels.
Two additional communication modules can be used in wireless operation. Both communication modules have their
own primary address. Both ports have a common secondary address, which is set to the serial number ex works.
The protocols may be different for all three communication channels and are pre-set ex works. The telegrams can
be defined for each customer using the IZAR@MOBILE 2 software.
7.2.1

Communication via radio

The integrated radio module is an interface for communication with radio receivers.
Unidirectional communication has the following specification:
• The module transmits every 8 ... 256 s (send period 0.1 % of duty cycle (min. 8s); variable, depending on
protocol length and programming)
• The communication always transfers the currently measured data
• Transmission frequency: 868 MHz or 434 MHz
• Various receivers are available for receiving the protocol (e.g. Bluetooth, GPRS, LAN, ...)
• The protocol corresponds to OMS Profile A or Profile B and is encrypted.
• Reading modes: Walk-By, Drive-By, Fixed-Network
• For problematic radio installations (shield) the external wireless module set can also be used.
7.2.2

M-Bus Communication module

The M-Bus communication module is a serial interface for communication with external devices (M-Bus control
centres), e.g. Rossweiner Datensammler. A number of meters can be connected to a control centre. The module
contains a 2-pole terminal strip with terminals marked 24, 25.
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