Omron NJ-series User Manual page 414

Timing Charts
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
_Card1BkupCmd.ExecVefy
Card1BkupCmd.CancelVefy
_Card1VefySta.Done
_Card1VefySta.Active
_Card1VefySta.Rslt
_Card1VefySta.Err
_BackupBusy
 Normal End with Differences Found
_Card1BkupCmd.ExecVefy
_Card1BkupCmd.CancelVefy
_Card1VefySta.Done
_Card1VefySta.Active
_Card1VefySta.Rslt
_Card1VefySta.Err
NJ-series CPU Unit Software User's Manual (W501)
Verification
start command
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
Verification
start command
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
_BackupBusy
FALSE
Pre-execution Normal end, no
checks cleared. differences found
Pre-execution
checks cleared.
9 Backup Functions
Normal end,
differences found
9
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