NOTICE!
Risk of damaging the PLC modules!
Overvoltages and short circuits might damage the PLC modules.
– Make sure that all voltage sources (supply voltage and process supply
voltage) are switched off before you begin with operations on the system.
– Never connect any voltages or signals to reserved terminals (marked with
---). Reserved terminals may carry internal voltages.
The module provides several diagnosis functions
Ä
Chapter 1.6.1.1.4.6 “Diagnosis”
on page 173.
The digital inputs can be used as source inputs or as sink inputs.
NOTICE!
Risk of malfunctions in the plant!
A ground fault, e. g. caused by a damaged cable insulation, can bridge switches
accidentally.
Use sink inputs when possible or make sure that, in case of error, there will be
no risks to persons or plant.
The following figure shows the connection of the digital input module DI562:
1
2
C0..7
I0
4
I2
3
I1
5
I3
6
I4
7
I5
8
I6
9
I7
10
11
C8..15
I8
13
I10
12
I9
14
I11
15
I12
16
I13
17
I14
18
I15
19
---
20
---
24 V
DC/AC
+ / ~
– / ~
1
2
C0..7
I0
4
I2
3
I1
5
I3
6
I4
7
I5
8
I6
9
I7
10
11
C8..15
I8
13
I10
12
I9
14
I11
15
I12
16
I13
17
I14
18
I15
19
---
20
---
24 V
DC/AC
+ / ~
– / ~
Connection of DI562 - sink inputs Connection of DI562 - source inputs
I/O modules > Digital I/O modules
2022/01/31 3ADR010278, 3, en_US 171
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