bürkert 8025 Bedienungsanleitung Seite 67

3 INSTALLATION
Connection of transmitter 8025, compact, 12-30 VDC, with relays and cable
glands, to a PLC
The 4-20 mA output of the transmitter, 12-30 VDC, with relays can be connected to a PLC.
Depending on the PLC type, position the "sourcing / sinking mode" switch [1] properly (see
following fig. and fig. 3.8).
Connection of the 8025 current output in
source mode
4-20 mA
+
-
Iout
Switch [1]
(see fig. 3.8)
Without
SOURCE SINK
With
Connection of the 8025 pulse output (wired
in NPN mode)
12-30 VDC
300 mA
+
-
P. Supply
(*)
Without
SOURCE SINK
With
Supply
12..30Vdc
(*) If direct earthing is impossible, connect a 100 nF/50 V capacitor between the negative terminal and the earth.
Fig. 3.9
Connection of transmitter 8025, compact, 12-30 VDC, with relays and
cable glands, to a PLC.
300 mA
+
-
12-30 VDC
(*)
Supply PULSE
12..30Vdc OUTPUT
FLOW SENSOR
COIL NPN
+
5-30 VDC
-
+
-
PULSE
OUTPUT
FLOW SENSOR
COIL NPN
8025:
NPN
E-19-
FLOW TRANSMITTER 8025
Connection of the 8025 current output in
sinking mode
4-20 mA
+
-
Iout
Switch [1]
(see fig. 3.8)
Without
SOURCE SINK
With
Connection of the 8025 pulse output (wired
in PNP mode)
12-30 VDC
300 mA
+
-
P. Supply
(*)
Without
SOURCE SINK
With
Supply PULSE
12..30Vdc OUTPUT
8025:
PNP
300 mA
+
-
12-30 VDC
(*)
Supply PULSE
12..30Vdc OUTPUT
FLOW SENSOR
COIL NPN
+
5-30 VDC
-
+
-
FLOW SENSOR
COIL NPN