Omron NJ Series

9-23
9 Backup Functions
NJ-series CPU Unit Software User’s Manual (W501)
9-2 SD Memory Card Backups
9
9-2-3 Verify (between Controller and SD Memory Card)
The operation of the system-defined variables when they are used to verify data is shown below. In
the charts, “pre-execution checks” indicates processing to check whether there is a SD Memory
Card in the CPU Unit and other items. The value of _Card1VefySta.Active (Active Flag) changes to
TRUE only after all of the pre-execution checks are cleared and the actual verification is started.
 Normal End with No Differences Found
 Normal End with Differences Found
Timing Charts
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
_BackupBusy
_Card1VefySta.Err
_Card1VefySta.Rslt
_Card1VefySta.Active
_Card1VefySta.Done
C
ard1BkupCmd.CancelVefy
_
Card1BkupCmd.ExecVefy
Normal end, no
differences found
Pre-execution
checks cleared.
Verification
start command
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
_BackupBusy
_Card1VefySta.Err
_Card1VefySta.Rslt
_Card1VefySta.Active
_Card1VefySta.Done
_Card1BkupCmd.CancelVefy
_Card1BkupCmd.ExecVefy
Normal end,
differences found
Pre-execution
checks cleared.
Verification
start command