S600+ Instruction Manual
Revised July-2017 I/O 4-19
Note: You must connect the return lines (such as pin 17 on SKT-E) to
a 24 Volts dc source. The DIGIN lines (such as pin 13 on SKT-
E) expect typical “open collector” (referenced to GND)
connections.
Refer to Figures 4-23 and 4-24 for field wiring schematics.
Figure 4-23. Digital Input Schematic (Open Collector Device)
Figure 4-24. Digital Input Schematic (Relay)
Table 4-15. DIGIN Pin Connections for SKT-E