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Siemens SIMATIC S7 CP340 - Page 22

Siemens SIMATIC S7 CP340
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4 ASCII protocol communication
CP340/CP341/CP440/CP441 Communication and Programming
Entry-ID: 88867653, V1.0, 02/2014
22
Siemens AG 2014 All rights reserved
Fig. 36: Protocol selection
4. Double-click the envelop icon in Protocol to configure the performance
parameters in it. The set communication parameters must match those of the
communication partner. Baud rate: 9600bpsData bit: 8 bits,Stop bit: 1 bit,
Parity: none, Character delay time:4msother parameters may use default data.
Fig. 37: Distributing parameters for ASCII protocol
5. As CP440 has only one type of RS422/485 interface, conversion equipment
shall be required if it has different interface from the communication partner, and all
other parameters shall be the same as CP340/341 when in ASCII communication.

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