DVP-ES3 Series Operation Manual
4-14
4.6 Wiring CPU Modules
4.6.1 Wiring Digital Input Terminals
4.6.1.1 Direct Current Power Supply (24 VDC)
When the digital input signal is DC input, there are two DC input types, Sinking and Sourcing. See the definition
below.
Sink = The current flows into the common terminal
S/S.
Source = The current flows from the common
terminal S/S.
4.6.1.2 Relay Types
Sinking
S/S
X0
I/O
Internal circuit
24VDC
+
Internal circui t
Sourcing
S/S
X0
I/O
Internal circuit
24VDC
+
Internal circuit