M-Bus Communication Module; Rs232 Communication Module - Diehl Metering SHARKY 775 Instructions D'installation

6.2.2 M-Bus communication module

The M-Bus communication module is a serial interface for communication
with external devices (M-Bus control centres), e.g. IZAR CENTER. A num-
ber of meters can be connected to a control centre. The module contains
a 2-pole terminal strip with terminals marked 24, 25.
ƒ
The connection is not
polarity-conscious and is
electrically isolated
ƒ
M-Bus protocol to EN 1434
standard;
ƒ
300 or 2400 baud
(auto baud detect)
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Connection for
2 x 2.5 mm² wires
ƒ
Current drawn:
one M-Bus load

6.2.3 RS232 Communication module

The RS232 communication module is a serial interface for communicating
with external devices, e.g. PC; 300 or 2400 bauds.
The module contains a 3-pole terminal strip with terminals marked
62 (Dat), 63 (Req) and 64 (GND).
A special adapter cable is required for connection (order no. 087H0121).
The coloured wires are to be connected as shown:
62 = brown
63 = white
64 = green
Module RS232 may only be fitted on port 2 (right side).
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