Note that you must only use shielded connector housings. A large surface area of both sides of
the cable shield must be in contact with the connector casing. You are advised to use Siemens
V42 254 shielded connector casings.
CAUTION
Never connect the cable shield with the GND, as this could destroy the submodules. GND must
always be connected on both sides (pin 8), otherwise the submodules could again be
destroyed.
In the Following
The following pages contain examples of connecting cables for a point-to-point connection
between the CP 440 and S7 modules or the SIMATIC S5.
Connecting cable X 27 (S7 (CP 440) - CP 340/CP 341/CP 440/CP 441)
The gure below illustrates the cable for a point-to-point connection between a CP 440 and a CP
340/CP 341/CP 440/CP 441 for RS 422 operation.
Connecting cables
11.2 Cables
Point-to-point connection CP 440 Installation and Parameter Assignment
128 Equipment Manual, 03/2022, A5E00057742-AE
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