M-Bus interface
The data of the parameter list and measurement values
list can be accessed via the M-Bus interface with the
help of the primary or secondary address. Changing
these values is not possible via the M-Bus.
The primary device address is factory preset to „1“.
The extended section of the 8-Byte long secondary
address is factory preset to contain the device serial
number and can be individually changed via the corre-
sponding parameters. The device-specific section of the
secondary address cannot be adjusted (see page 42).
M-Bus device features
• Addressing possible via primary address and sec-
ondary address (0 .. 250)
• Freely selectable number of data points (0 .. 27)
• Supports protocol types:
SND_NKE/$E5 and REQ_UD2/RSP_UD2
• Slave search: Search on M-Bus
C
The UMG 96RM-M loads the M-Bus with
an M-Bus device load of 1.5 mA.
Number of data points
The number of data points to be transmitted for the
RSP_UD2 telegram is defined via this address.
Address: 080
Meaning: Number of data points for RSP_UD2
Setting range: 0 .. 27
Default setting: 0 (0 = All data points)
In order to call up all data points (0), a telegram must
be sent.
Example: Read out data points 1 to 6
Set the parameter of the address to 6. With each request
all data points up to and including data point 6 will be
transmitted.
Example: Read only data point 10
Set the parameter of the address to 10. With each re-
quest all data points up to and including data point 10
will be transmitted. Use only the data point required and
ignore those that are not required.
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