Isfile: File Available In User Memory Nck (As From Sw 5.2) - Siemens sinumerik 840d Programming Manual

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1.20 ISFILE: File available in user memory NCK (as from SW 5.2)

840D 840D
NCU 571 NCU 572
NCU 573
1.20

ISFILE: File available in user memory NCK (as from SW 5.2)

Programming
result=isfile(string[160]file)
With the ISFILE command you check whether a file exists in the user memory of the NCK
(passive file system). As a result either TRUE (file exists) or False (file does not exist) is returned.
Explanation of the parameters
file
result
Programming example
N10 DEF BOOL RESULT
N20 RESULT=ISFILE("TESTFILE")
N30 IF(RESULT==FALSE)
N40 MSG("FILE DOES NOT EXIST")
N50 M0
N60 ENDIF
...
or:
N30 IF(NOT ISFILE("TESTFILE"))
N40 MSG("FILE DOES NOT EXIST")
N50 M0
N60 ENDIF
...
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
810D 840Di
Name/path of the file to be read (call-by-value parameter of type
STRING with a max. length of 160 bytes).
The file must be stored in the user memory of the NCK (passive file
system). The file name can be preceded by the domain identifier _N_.
If the domain identifier is missing, it is added correspondingly.
The file identifier ("_" plus three characters, e.g. _SPF) is optional. If
there is no identifier, the file name is automatically added _MPF.
If there is no path specified in "file", the file is searched for in the current
directory (=directory of selected program). If a path is specified in "file",
it must start with a slash "/" (absolute path indication).
Variable for storage of the result of type BOOL (TRUE or FALSE)
Flexible NC Programming
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