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Product Description
BVS SC-_1280Z00-07-0_0
SMART
CAMERA
IO
english
NPN mode
NPN logic is predominantly used in Asia. The output is sinking, the input is sourcing.
To operate the IO port in PNP mode,
Common Out
must be supplied with 0 V and
Common In
with +24 V (19.2…30 V
DC
).
If I/O 0 is configured as input, it can be connected directly with the NPN 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 14: NPN 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 15: NPN 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 16: NPN mode, I/O 0 configured as output and I/O 1 as input
