CPU 72x
24.05.2019
page 27
1.7.2.2
Interrupt Inputs
The interrupt input of the CPU 723-T has the following input switching:
Fig.19: Connection diagram interrupt inputs
Legend:
Digital Interrupt Inputs CPU 723-T
Input type as per IEC 61131-2
Type 1
Display
LED green, lights up with signal = 1
Input voltage
0…24
Vdc
Limits
-30.0
…+30.0
Vdc
for signal = 0
< 5
Vdc
for signal = 1
> 14
Vdc
Input current with signal = 1 typ.
11
mA
1)
Input resistance typ.
2
k
Input delay typ.
0.6
µs
Input frequency max.
25
kHz
Switching edge distance
min. 10
µs
Galvanic separation
Input
logic
Yes, simple insulation
Input
input
No
Effect with cross-polarity of inputs
No destruction, no high currents
1)
at UC = Nominal value
LED
Input
0V