Number Of Files; Number Of Characters; Directory Specification - Mitsubishi Electric MELSEC IQ-R series Reference Manual

Number of files

Specify the number of files to be accessed. The number of registered files or the number of accessed files are returned.
Setting method
■Data communication in ASCII code
Convert the numerical value to 4-digit ASCII code (hexadecimal), and send it from the upper digits.
■Data communication in binary code
Send 2-byte numerical values
*1 For C24, the additional code may be added. (Page 35 Additional code (10H))
Ex.
Number of file is 3
ASCII code
0 0 0 3
30 30 30 33
H H H H

Number of characters

This indicates the number of characters of variable length character string to be specified.
Setting method
■Data communication in ASCII code
Convert the numerical value to 4-digit ASCII code (hexadecimal), and send it from the upper digits.
■Data communication in binary code
Send 2-byte numerical values
*1 For C24, the additional code may be added. (Page 35 Additional code (10H))
Ex.
Number of characters is 86 characters (56H)
ASCII code
0 0 5 6
30 30 35 36
H H H H

Directory specification

Specify the absolute path to a file to be accessed.
Specify 'Path name' with variable length. The length of data is specified in 'Number of characters'. (Page 200 Number of
characters)
ASCII code
Number of characters
(4 digits) (Variable length)
Specify '0' for the root directory (root folder)
ASCII code
0 0 0 0
30 30 30 30
H H H H
12 FILE CONTROL
200
12.3 Data to be specified in commands
*1
from the lower byte (L: bits 0 to 7).
Binary code
03
H
*1
from the lower byte (L: bits 0 to 7).
Binary code
56
H
Binary code
Path name Number of characters
(2 bytes)
Binary code
00
H
00
H
00
H
Path name
(Variable length)
00
H