4 ASCII protocol communication
CP340/CP341/CP440/CP441 Communication and Programming
Entry-ID: 88867653, V1.0, 02/2014
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Fig. 30: Invoke FB7 P_RCV_RK from OB1
4.2.4 Equipment connection
Use standard RS232C cable to connect serial ports of CP341 and computer. The
detailed cable connecting method may be seen in CP341 Manual - Chapter B:
Connecting cables.
4.3 ASCII protocol communication of CP440
4.3.1 Hardware catalog
4.3.2 Configuration
1. Open the project ptp that has been created, and right-click the project name,
select Insert a new SIMATIC 400 Station to change the station name to CP440
ASCII.