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15 DATA COMMUNICATIONS USING USER FRAMES
15 DATA COMMUNICATIONS USING USER
FRAMES
Registering the fixed format portion of the message transmitted/received by a target device and C24 as a user frame
beforehand allows data transmission/reception using a user frame.
Data transmission/reception using a user frame simplifies the creation of data to be transmitted on the CPU module side, and
the program for checking received data.
This chapter explains the data transmission/reception methods and procedures when communication data using user frames
with the nonprocedural protocol of C24.
For details on "Transparent code" and "ASCII-BIN conversion", refer to the following chapters.
• When using transparent codes (Page 326 TRANSPARENT CODES AND ADDITIONAL CODES)
• When performing data communication using ASCII-BIN conversion (Page 347 COMMUNICATING
WITH ASCII CODE (ASCII-BIN CONVERSION))
C24
User frame
Data transmission
Arbitrary data
Arbitrary data
Target device such as a bar code reader
or ID controller personal computer
Data reception
User frame
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