18
3
Product Description
BVS SC-_1280Z00-07-0_0
SMART
CAMERA
IO
english
PNP mode
PNP logic is predominantly used in Europe. The output is sourcing, the input is sinking.
To operate the I/O port in PNP mode,
Common Out
must be supplied with +24 V (19.2…30 V
DC
)
and
Common In
with 0 V.
If I/O 0 is configured as input, it can be connected directly with the PNP output of a sensor, a
PLC or similar. A 1 signal is being detected if the input is connected with
Common Out
. A 0
signal is being detected if the input is set to
Common In
or is not connected.
1
2
3
4
5
6
7
8
24 V
+
−
I/O 0
Common Out
I/O 1
I/O 2
I/O 3
Common IN
I/O 5
I/O 4
Figure 11: PNP mode, I/O 0 configured as input
If I/O 0 is configured as output, the output is connected with
Common Out
and the actuator,
PLC input or similar is supplied with it if 1 is being output. The output is high-resistance if 0 is
being output.
1
2
3
4
5
6
7
8
24 V
+
−
I/O 0
Common Out
I/O 1
I/O 2
I/O 3
Common IN
I/O 5
I/O 4
+ −
Figure 12: PNP mode, I/O 0 configured as output
The output current of an I/O may not exceed 100 mA. If the output is being overloaded, e.g. by a
short circuit, it is switched off and periodically checked whether the fault occurrence is still
present. If the error was removed, the output is again in normal operating state without a reset.
It is also possible to use input and output functions at the same time. In the following example,
I/O 0 is configured as output and I/O 1 as input.
1
2
3
4
5
6
7
8
24 V
+
−
I/O 0
Common Out
I/O 1
I/O 2
I/O 3
Common IN
I/O 5
I/O 4
+ −
Figure 13: PNP mode, I/O 0 configured as output and I/O 1 as input
