Balluff SMARTCAMERA IO User Manual page 19

BVS SC-_1280Z00-07-0_0
SMARTCAMERA IO
3
Product Description
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
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.
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.
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.
Figure 16: NPN mode, I/O 0 configured as output and I/O 1 as input
www.balluff.com
).
DC
1
I/O 0
2
Common Out
3
I/O 1
4
I/O 2
5 24 V
I/O 3
6
I/O 4
7
Common IN
8
I/O 5
1
I/O 0
−
2
Common Out
3
I/O 1
4
I/O 2
5 24 V
I/O 3
6
I/O 4
7
Common IN
8
I/O 5
1
I/O 0
−
2
Common Out
3
I/O 1
4
I/O 2
5 24 V
I/O 3
6
I/O 4
7
Common IN
8
I/O 5
+
−
+
+
−
+
+
−
english 19