Satron Instruments VC Quick Start Manual page 6

Second mA (IO2) loop connection (2-wire)
RDU
Digital output
RDU
PLC
0V IN
+
–
24V
Digital input
PLC
VS IN
+
24V
–
4 – 20 mA input
5
Digital input
RDU
PLC
D D
out GND
Digital output (relay)
Device enclosure (K) connection to PLC
Connection
Box (K)
PLC
IN1
4 – 20 mA inputs
0V VS IN2
250Ω
24V
+
–