Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 604

■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 read-target
data
+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
• Read data (d2)
Operand: (d2)
Device Item
+0 Number of data actually
read
+1 to + Read data
7 APPLICATION INSTRUCTIONS
602
7.6 Reading/Writing Data Instructions
Description
Specify the execution type.
• 0000H: Reading binary data
• 0100H: Reading 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)
Specify the number of read-target data (in units of words). (in units of words)
Even when "Byte" is specified by (d1)+7, specify the number in units of words.

■When "Reading 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: Cannot be specified.
■When "Reading data after converted to CSV format" is specified by (d1)+0
• 00000000H: From the beginning of the file
• 00000001H to FFFFFFFEH: From the specified row
• FFFFFFFFH: From the position where the previous reading ends
When "Reading binary data" is specified by (d1)+0, set 0.
When "Reading data after converted to CSV format" is specified by (d1)+0, set the
number of read-target columns.
• 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
The number of data actually read is set.
The data unit is determined by (d1)+7.
The read data is stored.
Setting range Set by
0000H User
0100H

System
1 to 65535 User
 
00000000H to User
FFFFFFFFH
0000H to FFFFH User
(0 to 65535)
0, 1 User
Setting range Set by
Unicode string User
Setting range Set by

System

System