Central Processing Unit
5–23
1070 072 145-102 (01.07) GB
Limitation
With the operation of the second serial interface, a response time on the in-
terrupt inputs that is shorter than 1 ms can no longer be guaranteed.
Connecting cable
. Do not route data lines parallel to power lines.
A premanufactured connecting cable is available to connect to the X32 inter-
face connector:
Designation Order no.
ZS/PG Connecting cable 1070 077 753
Cable length
The maximum permissible length, even of premanufactured cables, de-
pends on the type of cable used. The cable shall be a screened,
twisted-con-
ductor 14 x 0.14 mm
2
cable. The following values may not be exceeded:
D Line resistance 0.138 Ω/m
D Line capacitance 120 pF/m
D Cable length 15 m
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