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FX3G/
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
34 FX3U-CF-ADP Applied Instructions – FNC300 to FNC305
34.3 FNC 302 – FLWR / Data write
The FLWR instruction writes data specified by the device to a file stored in the CompactFlash
TM
card specified
by the file ID or to the buffer inside the CF-ADP. The FLWR instruction can overwrite data in the line position specified
by the device
+1, and can write additional data (K-1). When the writing destination is the buffer inside the CF-
ADP, the FLWR instruction can only execute additional writing. When writing is completed, the line position and
column position after writing are as follows.
• When data in 1 line is written additionally
- Line position after writing : Written line position + K1
- Column position after writing : K1
• When a line having existing data is overwritten
- Line position after writing :
Written line position if data is not written to the final column position of specified the line position Line position
next to the written line position if data is written to the final column position of the line
- Column position after writing:
Column position next to the final written data point K1 if data is written to the final data point in the line "K1" if
data is written to the final data point in the line
Both additional writing and overwriting are executed to the maximum number of lines specified during file creation. If
data is written up to the final column position, the line position after writing varies depending on the file type and
setting.
• When the processing is stopped by the maximum line position in a normal file
Line position after writing = Maximum line position + K1
K-32768 when the maximum line position is "K32767"
• In the case of a normal file in which processing returns to the head of the file from the end of the file (ring buffer file)
Line position after writing = K1
In either case, the column position after writing is "K1".
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