Diehl 775 Instrucciones De Montaje página 32

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. 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-sensitive and is
electrically isolated
ƒ
M-Bus protocol stan-
dardised according to
EN 1434;
ƒ
300 or 2400 baud
(auto baud detect)
ƒ
Connection option
2 x 2.5 mm²;
ƒ
Power consumption:
One M-Bus load
7.2.3 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 is only to be installed on port 2 (right side).
-32-
Deutsch
English