Siemens SIMATIC CP 340 User Manual page 169

RS 232C connecting cables (S7 (CP 340) - CP 523)
The figure below illustrates the connecting cable for a point-to-point connection between a
CP 340 and a CP 523.
For the connecting cables you will require the following female/male connectors
● At the CP 340 end: 9-pin D-sub socket contact with screw interlock
● At communication partner: 25-pin sub D male connector with screw-locking
PtP coupling and configuration of CP 340
Manual, 04/2011, A5E00369892-03
Figure B-4 RS 232C Connecting Cable CP 340 - CP 523
B.1 RS 232C interface of the CP 340–RS 232C
Connecting Cables
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