Siemens SIMATIC S7 CP340 - Appendix B: Connecting Cables

4 ASCII protocol communication
CP340/CP341/CP440/CP441 Communication and Programming
Entry-ID: 88867653, V1.0, 02/2014
34
 Siemens AG 2014 All rights reserved
Fig. 55: Invoke SFB13 BRCV from OB1
4.4.4 Equipment connection
Use standard RS232C cable to connect serial ports of CP441-2 interface1 and
computer. The detailed cable connecting method may be seen in CP441 Manual -
Appendix B: Connecting cables.