Planning for installation 293
Active sensors / input signals from solid state devices
Examples:
• PLC 24 V DC PNP
• Light curtain OSSD
Outputs to solid state devices
Example:
• PLC 24 V DC NPN
1
10
9
8
7
6
5
4
3
2
X114
TP
DO
GND
DI
X113
CH 2
CH 1
COM /
GND
+
GND
Physical separation of the different channels
or appropriate cable protection (eg. double-
shielding)
Channel separation
24 V DC
PNP
outputs
Diagnostic pulses from an
active sensor must not be
overlapping.
1
10
9
8
7
6
5
4
3
2
X114
TP
DO
GND
DI
X113
CH 1
CH 2
COM /
GND
+
GND
Physical separation of the different channels
or appropriate cable protection (eg. double-
shielding)
24 V DC
NPN
inputs
Channel separation
Diagnostic pulses
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