LSIS XEC-DR32H - Page 19

Chapter 1 Introduction
Terms Definition Remark
Sink Input
Current flows from the switch to the PLC input terminal if a input
signal turns on.
Z: Input
impedance
Source Input
Current flows from the PLC input terminal to the switch after a
input signal turns on.
-
Sink Output
Current flows from the load to the output terminal and the PLC
output turn on.
-
Source Output
Current flows from the output terminal to the load and the PLC
output turn on.
-
−
Output
Contact
1-5