Ny532 - Omron NY532-5400 Reference Manual

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.
Additional Information
You must open files with the FileOpen instruction for the following instructions: FileSeek, FileRead, File-
Write, FileGets, and FilePuts.
Precautions for Correct Use
• Execution of this instruction is continued until processing is completed even if the value of Execute
changes to FALSE or the execution time exceeds the task period. The value of Done changes to
TRUE when processing is completed. Use this to confirm normal completion of processing.
• Refer to Using this Section on page 2-3 for a timing chart for Execute, Done, Busy, and Error.
• You must use the FileOpen instruction in advance to obtain the value for FileID.
• You must use this instruction to close any file that is opened with the FileOpen instruction after you
finish using it.
• If a file is open when the operating mode of the CPU Unit is changed to PROGRAM mode or when a
major fault level Controller error occurs, the file is closed by the system. Any read/write operations
that are in progress are completed to the end.
NY-series Instructions Reference Manual (W560)
Meaning Data type
BOOL
BOOL
BOOL
BOOL
BOOL
2 Instruction Descriptions
Description
This flag indicates if the SD Memory Card can be
accessed by instructions and communications com-
*1
mands.
TRUE: Can be used.
FALSE: Cannot be used.
This flag indicates if the SD Memory Card is write pro-
tected 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
processing when power was interrupted during
*3
access . This flag is not cleared automatically.
TRUE: Error.
FALSE: No error.
2
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