S600+ Instruction Manual
Revised July-2017 I/O 4-7
Note: You must connect the feed lines (such as pin 17 on SKT-B) to a
24 Volts dc source. The DIGIN lines (such as pin 13 on SKT-
B) expect typical “open collector” (referenced to GND)
connections.
Figure 4-9. Digital Input Schematic (Open Collector Device)
Figure 4-10. Digital Input Schematic (Relay)
Table 4-4. DIGIN Pin Connections for SKT-B