Mitsubishi Electric MELSEC iQ-R Series - Page 621

7 APPLICATION INSTRUCTIONS
7.6 Reading/Writing Data Instructions
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■For RnCPU (firmware version "27" or earlier), RnENCPU (firmware version "27" or earlier),
RnPCPU, and RnSFCPU
• Control data (d1)
• File name (s2)
• Write data (s3)
Operand: (d1)
Device Item Description Setting range Set by
+0 Execution/completion
type
Specify the execution type.
• 0000H: Writing binary data
• 0100H: Writing data after converted to CSV format
0000H
0100H
User
+1 Completion status The completion status is stored upon completion of the instruction.
• 0000H: Completed successfully
• Other than 0000H: Completed with an error (error code)
 System
+2 Number of data actually
written
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.
 System
+3 Not used  
+4
+5
File position ■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.
00000000H to
FFFFFFFFH
User
+6 Number of columns 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
0000H to FFFFH
(0 to 65535)
User
+7 Data type specification 0: Word
1: Byte
0, 1 User
Operand: (s2)
Device Item Description Setting range Set by
+0 to + File name character
string
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".
Unicode string User
Operand: (s3)
Device Item Description Setting range Set by
+0 Number of request
write data
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.
1 to 65535 User
+1 to + Write data The number of data to be requested to write is stored. 0000H to FFFFH User