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BDD Touch Display
4
Electrical connections
4.11 BDD 750-...-402-_-_:
serial interface
A serial interface (RS232 or RS485) is
available at terminal 16, 17 und 18.
This interface can be configured in the
S
.
erial menu
The serial interface RS232 or RS485 can be
used:
–
for easy setup and commissioning of
the units
–
to modify settings and parameters
during operation
–
to read out internal states and actual
measuring values by PC or PLC
Connection to a PC by using a standard
connector (D-SUB, 9 pins) via RS232-
interface:
Device
RxD
TxD
GND
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4.12 BDD 750-...-402-_-_:
control output
Four control outputs are available at terminal
20, 21, 22 and 23.
Switching conditions can be set in the
p
reSelection menu
The output Ctrl. Out1...4 are fast PNP
outputs with a switching capability of
5...30 Volt / 200 mA per channel.
The switching voltage of the outputs must
be applied to input terminal 19 (COM+).
In case of switching inductive loads it is
advisable to use external filtering of the coils.
The switching states are displayed (display
with unit and status bar) as C1...C4.
Wiring of the control outputs:
PC
2
D-SUB
3
9 pin
5
.
17
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