ELECTRICAL CONNECTIONS
43
3
Power to
Output device
Output device
Reference
Output Device
Output
Signal
Figure 18 - Open Collector Output Using STS400™ Power
3.8.2 Output Connections to External Digital Inputs
Alternatively, the reading system's digital outputs can be used to control a digital input of
another device such as a PLC. For this purpose, connect the switched signal and the
appropriate reference level as shown in the figures below.
CBX500 ATS
Function
O1+
Output 1 +
O1-
Output 1 -
O2+
Output 2 +
O2-
Output 2 -
Figure 19 - Output Connected to External Digital NPN Input
Figure 20 - Output Connected to External Digital PNP Input
Pulled up to Digital
Input Power
Output
Signal
Digital Input
Pulled down to Digital
Input Reference
Output
Signal
Digital Input
