Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

2 Instruction Descriptions
The following figure shows a programming example. Here, the contents of the file called
'Temp/f_name.bin' is read and written to the array variable abc[]. Variable abc is an INT array variable
with three elements.
LD
A
'Temp/f_name.bin'
The FileReadVar instruction reads the contents of the file specified by FileName
from the SD Memory Card as binary data and assigns it to variable ReadVar.
ReadVar[0]=abc[0]
ReadVar[1]=abc[1]
ReadVar[2]=abc[2]
Related System-defined Variables
Name
_Card1Ready SD Memory Card
Ready Flag
*2 SD Memory Card Write
_Card1Protect
Protected Flag
SD Memory Card Error
*2
_Card1Err
Flag
*2 SD Memory Card
_Card1Access
Access Flag
_Card1PowerFail SD Memory Card
Power Interruption Flag
*1 For the NJ/NX-series, it is a precondition that the SD Memory Card is physically inserted and mounted normally. For an
NY-series Controller, it is a precondition that the shared folder is detected by the Controller.
*2 These variables are not used for the NY-series Controller. They are fixed to FALSE.
*3 For the NJ/NX-series, this indicates an access to the SD Memory Card. For an NY-series Controller, this indicates an
access to the shared folder.
2-1250
FileReadVar_instance
FileReadVar
Execute Done
FileName Busy
ReadVar
abc
Error
ErrorID
Read.
INT#1234
INT#2345
INT#3456
Meaning Data type
BOOL
BOOL
BOOL
BOOL
BOOL
ST
FileReadVar_instance(A, 'Temp/f_name.bin', abc,
def
ghi
abc
jkl
mno
File FileName = 'Temp/f_name.bin'
INT#1234
INT#2345
INT#3456
Description
This flag indicates if the SD Memory Card can be accessed
by instructions and communications commands.
TRUE: Can be used.
FALSE: Cannot be used.
This flag indicates if the SD Memory Card is write protected
when it is inserted and ready to use.
TRUE: Write protected.
FALSE: Not write protected.
This flag indicates if an unspecified SD Memory Card (e.g.,
an SDHC card) is mounted or if the format is incorrect (i.e.,
not FAT16 or corrupted).
TRUE: Error.
FALSE: No error.
This flag indicates if the SD Memory Card is currently being
accessed.
TRUE: Being accessed.
FALSE: Not being accessed.
This flag indicates if an error occurred in completing process-
ing when power was interrupted during access
not cleared automatically.
TRUE: Error.
FALSE: No error.

NY-series Instructions Reference Manual (W560)

def, ghi, jkl, mno);
*1
*3
. This flag is