Siemens SIMATIC S7-400 CP 440 - Figure 2-6 Sequence of Receive Operation with End-Of-Text Character End Criterion

Basic Principles of Serial Data Transmission
2.4 Data Transmission with the ASCII Driver
Point-to-point connection CP 440 Installation and Parameter Assignment
36 Manual, 09/2007, A5E00057742-03
The figure below illustrates a receive operation with the end criterion "end-of-text character".
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WLPH
0HVVDJHIUDPH
HQWHUHGLQUHFHLYH
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0HVVDJH
IUDPH
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&KDUDFWHU
DUULYHG
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WLPH
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HQGFRGH
(UURUHQWHUHGLQWKH
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(UURUZKHQUHFHLYLQJ
0HVVDJHIUDPHEXIIHUHG
(QGFULWHULRQIRUPHVVDJHIUDPHLGHQWLILHGHUURUHQWU\IROORZV
Figure 2-6 Sequence of receive operation with "End-of-Text Character" end criterion
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