IDEC FC4A-C10R2, User Manual

Page: 123 / 525

5: S
PECIAL
F
UNCTIONS
« FC4A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
» 5-3
Run/Stop Selection at Memory Backup Error
Start control special internal relay M8000 maintains its status when the CPU is powered down. After the CPU has been off
for a period longer than the battery backup duration, the data designated to be maintained during power failure is broken.
The Run/Stop Selection at Memory Backup Error dialog box is used to select whether to start or stop the CPU when
attempting to restart operation after the “keep” data in the CPU RAM has been lost.
When a built-in lithium battery is fully charged, data of internal relays, shift registers, counters, and data registers stored in
the RAM are maintained for approximately 30 days.
Since this setting relates to the user program, the user program must be downloaded to the
MicroSmart
after changing this
setting.
Programming WindLDR
1.
From the WindLDR menu bar, select Configure > Function Area Settings . The Function Area Settings dialog box
appears.
2.
Select the Run/Stop tab.
Run (Default): Click the button on the left to star t the CPU at memor y backup error.
Stop: Click the button on the right to stop the CPU when attempting to star t at memor y backup error.
When the CPU does not star t because of the Stop selection, the CPU can not be star ted alone, then
the CPU can still be star ted by sending a star t command from
WindLDR to turn on start control spe-
cial internal relay M8000 . For star t/stop operation, see page 4-3.
3. Click the OK button.