A-53
Appendices
NJ-series CPU Unit Software User’s Manual (W501)
A-4 Specifications for Individual System-defined Variables
App
A-4-1 System-defined Variables for the Overall NJ-series Controller (No Category)
*1 This system-defined variable was added for unit version 1.03 of the CPU Unit.
Variable name _Card1Access
Meaning SD Memory Card Access Flag Global/local Global
Function TRUE during SD Memory Card access.
TRUE: Card is being accessed.
FALSE: Card is not being accessed.
The system updates the flag every 100 ms. Because of this, access to the SD Memory Card is shown by this flag
with a delay of up to 100 ms. We therefore do not recommend the use of this variable in the user program.
Data type BOOL Range of values TRUE or FALSE
R/W access R Retained Retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name _Card1Deteriorated
Meaning SD Memory Card Life Warning Flag Global/local Global
Function TRUE when the life of the SD Memory Card is exceeded.
If this variable changed to TRUE, replace the SD Memory Card.
Read/write operation may fail if the SD Memory Card is not replaced.
TRUE: The life of the Card has been exceeded.
FALSE: The Card can still be used.
Data type BOOL Range of values TRUE or FALSE
R/W access R Retained Retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name _Card1PowerFail
Meaning SD Memory Card Power Interruption Flag Global/local Global
Function TRUE when the power supply to the CPU Unit was interrupted during access to the SD Memory Card.
TRUE: Power was interrupted during SD Memory Card access.
FALSE: Normal.
Data type BOOL Range of values TRUE or FALSE
R/W access RW Retained Retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
---
Variable name
_Card1BkupCmd
*1
Member name .ExecBkup
Meaning Execute Backup Flag Global/local Global
Function Change this variable to TRUE to back up Controller data to an SD Memory Card.
Note You cannot use this system-defined variable in the user program. Use it in CIP message communications
when sending a command from an HMI or host computer.
Data type Structure: _sBKUP_CMD, Member: BOOL Range of values TRUE or FALSE
R/W access R/W Retained Not retained. Network Publish Published.
Usage in user program Not possible. Related instruc-
tions
---
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