Installation manual

STS400™ INSTALLATION MANUAL
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3.7.2 Input Connections From PLC
Alternatively, the reading system can be controlled by a digital output of a PLC. For this
purpose, connect the switched signal and the appropriate reference level as shown in the
figures below.
PLC Signal CBX500 ATS Row 2
Function
Input I1A External Trigger A (polarity insensitive)
Reference I1B External Trigger B (polarity insensitive)
Figure 15 - External Trigger Connected to PLC
The yellow Trigger LED on the reader is on when the active state of the External Trigger
corresponds to ON.
PLC Signal CBX500 ATS Row 3
Function
Input I2A Input 2 A (polarity insensitive)
Reference I2B Input 2 B (polarity insensitive)
Figure 16 - Input 2 Connected to PLC
Pulled down to External
Input Reference
Input
Signal
PLC Signal
Pulled down to External
Input Reference
Input
Signal
PLC Signal