36
W&T
Digital-I/O Extender Sets
Digital Inputs
The basic wiring of the inputs for the Digital-IO Extender Set
can be seen in the following illustration:
The digital inputs of the Digital-I/O Extender Set 17633 are
„Type 3“ according to IEC 61131-2 and have a maximum input
voltage of 30V with respect to the device reference ground.
The lines to the digital inputs should not be longer than
necessary.
I/O Port
Power
Data
TxD
RxD
Fiber Optic Port
Outputs Vdd GND Inputs
1 2 + - 1 2
Vcc
AC/DC
max. 30V DC
+
-
12..24V AC/DC
