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

Related System-defined Variables
Name
_Card1Ready
*2
_Card1Protect
*2
_Card1Err
*2
_Card1Access
_Card1PowerFail
*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.
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 to obtain the value for FileID before you execute this instruc-
tion.
• Do not simultaneously access the same file. Perform exclusive control of SD Memory Card instruc-
tions in the user program.
• An error occurs in the following cases. Error will change to TRUE.
• The value of Origin is outside of the valid range.
• The SD Memory Card is not in a usable condition.
• The file specified by FileID does not exist.
• The file specified by FileID is being accessed.
• The position specified by Origin and Offset exceeds the file size.
• An error that prevents access occurs during SD Memory Card access.

NY-series Instructions Reference Manual (W560)

Meaning Data type
SD Memory Card BOOL
Ready Flag
SD Memory Card Write BOOL
Protected Flag
SD Memory Card Error BOOL
Flag
SD Memory Card BOOL
Access Flag
SD Memory Card BOOL
Power Interruption Flag
2 Instruction Descriptions
Description
This flag indicates if the SD Memory Card can be
accessed by instructions and communications
*1
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 cur-
rently being accessed.
TRUE: Being accessed.
FALSE: Not being accessed.
This flag indicates if an error occurred in complet-
ing processing when power was interrupted
*3
during access . This flag is not cleared automat-
ically.
TRUE: Error.
FALSE: No error.
2
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