USER HANDBOOK 2.0 | DC20XX, ET20XX, ECC21XX SLIM
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
Dialog-Controller-DC20XX_EN.docx
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5.2.4. Digital inputs and outputs, DC20XX and ECC21XX Slim
The digital outputs are positive switching 24 V outputs with an output current of max. 500 mA. They have a
common reference potential (GND) with the supply voltage.
NOTICE
Damage to the inputs or to the device!
Voltages over ±32 V can damage the inputs or the device.
No voltage in excess of ±32 V may be present at the inputs.
The digital inputs are type 1 or 3 (IEC 61131-2) positive switching inputs of type 1 or 3 (IEC 61131-2). They are
designed for nominal input voltages of 24 V. The input signals are transmitted internally on a cyclical basis
for process data processing. An open input is interpreted as static 0. The inputs also have a common
reference potential (GND).
The following counterparts have been tested for the SC-SMT 3.5 (Weidmüller) plug-in connector and are
approved for use with the device:
BLZF 3.50/12/180
Fig. 20: Digital inputs and outputs, DC20XX and ECC21XX Slim plug X1 with LEDs 1 to 8
Digital inputs and outputs, plug X1
Pin
Design
ation
Assignment
1
DI 1
digital input
2
DI 2
digital input
3
DI 3
digital input
4
DI 4
digital input
5
DO 1
digital output
6
DO 2
digital output
7
DO 3
digital output
8
DO 4
digital output
9…12
–
Power supply (see
