Siemens SIMATIC CP 340 - Page 181

Connecting Cables
B.3 X27 (RS 422/485) Interface of the CP 340–RS 422/485
PtP coupling and configuration of CP 340
Manual, 04/2011, A5E00369892-03
181
In the following
On the following pages you will find examples of connecting cables for a point-to-point
connection between the CP 340-RS 422/485 and S7 modules or SIMATIC S5.
X 27 connecting cables (S7 (CP 340) - CP 340/CP 441)
The figure below illustrates the connecting cable for a point-to-point connection between a
CP 340 and a CP 340/CP 441, for RS 422 mode.
For the connecting cables you will require the following male connectors:
● At the CP 340 end: 15-pin sub D male connector with screw-locking
● At communication partner: 15-pin sub D male connector with screw-locking
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Figure B-14 X27 Connecting Cable CP 340 - CP 441/CP 340 RS 422 Operation (Four-Wire
Mode)
Note
The maximum length of this cable type at 19.2 Kbaud is 1,200 m.