4
PRODUCT
DESCRIPTION
24
www. matrix-vision.com
BVS SC-_1280Z00-70-000
SMART
CAMERA
IO
www.balluff.com
Figure 9 PNP mode, I/O 0 configured as output and I/O 1 as input
NPN mode
NPN logic is predominantly used in Asia. The output is sinking, the input is sourcing.
To operate the IO port in NPN 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 sen-
sor, 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 10 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 actua-
tor, PLC input or similar is supplied with it if 1 is being output. The output is high-
resistance if 0 is being output.
