Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 621

■For RnCPU (firmware version "27" or earlier), RnENCPU (firmware version "27" or earlier),
RnPCPU, and RnSFCPU
• Control data (d1)
Operand: (d1)
Device Item
+0 Execution/completion
type
+1 Completion status
+2 Number of data actually
written
+3 Not used
+4 File position
+5
+6 Number of columns
+7 Data type specification
• File name (s2)
Operand: (s2)
Device Item
+0 to + File name character
string
• Write data (s3)
Operand: (s3)
Device Item
+0 Number of request
write data
+1 to + Write data
Description
Specify the execution type.
• 0000H: Writing binary data
• 0100H: Writing data after converted to CSV format
The completion status is stored upon completion of the instruction.
• 0000H: Completed successfully
• Other than 0000H: Completed with an error (error code)
For the data in the device specified by (s3), the number of data actually written is
stored.
The data unit is determined by (d1)+7.

■When "Writing binary data" is specified by (d1)+0
• 00000000H: From the beginning of the file
• 00000001H to FFFFFFFEH: From the specified position (The data unit is
determined by (d1)+7.)
• FFFFFFFFH: Added to the end of the file.
■When "Converting and writing data in CSV format" is specified by (d1)+0
• 00000000H to FFFFFFFEH: From the beginning of the file
• FFFFFFFFH: Added to the end of the file.
When "Writing binary data" is specified by (d1)+0, set 0.
When "Converting and writing data in CSV format" is specified by (d1)+0, specify the
number of columns to write.
• 0: No column (Regarded as one row.)
• Other than 0: Number of specified columns
0: Word
1: Byte
Description
Specify the string of the file name.
When omitting an extension, omit the ". (period)" as well.
Specify the name within 60 characters (a period and extension excluded).
If 61 or more characters are used, the extension is ignored and replaced with ".BIN"
or ".CSV".
Description
Specify the number of data to be requested to write. (in units of words)
Even when "Byte" is specified by (d1)+7, specify the number in units of words.
The number of data to be requested to write is stored.
Setting range
0000H
0100H



00000000H to
FFFFFFFFH
0000H to FFFFH
(0 to 65535)
0, 1
Setting range
Unicode string
Setting range
1 to 65535
0000H to FFFFH
7 APPLICATION INSTRUCTIONS
7.6 Reading/Writing Data Instructions
Set by
User
System
System
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User
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User
Set by
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