Application Data - Mitsubishi MELSEC-F User Manual

6 FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)

6.4.2 Application data

Communication
request
source side
Communication request
destination side
Communication
request
source side
Communication request
destination side
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As shown below, the data code in the application data can be expressed in either
binary or ASCII code. Switching between binary code and ASCII code is performed via
the communication data code setting (BFM #24 b1 OFF: binary, ON: ASCII code).
(When setting using the FX Configurator-EN (GX Developer), select [Operational
Settings] from the initial screen, and adjust the settings from the [Operational Settings]
screen.)
For more details, see Section 4.6, "Operational Settings".
(1) Format
(a) Communication using binary code
2 bytes
Subheader
L H
(b) Communication using ASCII code
4 bytes
Subheader
-
H -
Maximum
2 bytes
2 bytes
Data length
Text
setting (command)
L H
Application data section
(response)
Maximum
4 bytes 4 bytes
Data length
Text
setting (command)
H - -
L L
Application data section
(response)
MELSEC-F
Application data section
(command message)
Subheader
1 byte
Application data section
(command message)
588 words
Subheader
H L
2 byte
End code
1 byte
End code
H L
2 byte
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