EN UG-020 Link 6 user guide r1.0 36
Table 19: Digital inputs
Digital inputs Min Typical Max Unit Note
Low state voltage -3 0 5 V DC
High state voltage 11 24 30 V DC
Current 2.0 2.6 mA
Voltage drop
Function Current sinking
IEC 61131-2 Type 1, 3
Digital input type 1 and 3 designed
for accordance with IEC 61131-2
Each wetting port is designed to provide the power needed for a single input point. Do not use it
as a generic power source.
The terminal connections belong to the GENERAL PURPOSE terminal group.
Table 20: Digital input terminal connections
Label Purpose
DI_n (n=[0-7] Terminal points for digital input
24_o Wetting port for each digital input
Each input has its own wetting port.
Figure 32: Digital input terminal connections
General-purpose digital outputs
All 0 V ports are common, although each output has its own 0 V terminal.
All the digital outputs are short-circuit protected. An incorrect terminal connection does not lead
to any permanent damage.
There are isolation potentials between a channel and other circuits, including earth, as well as
between channels under normal operation.
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