92
Description of Operation Section 3-2
Status after function block data is downloaded
■ Operating status
After the function block data is downloaded to RAM and flash memory in the
Loop Controller, the Loop Controller will be stopped.
Note The Loop Controller will also be stopped after the CX-Process Tool is used to
recover flash memory data to the RAM.
■ Status of stored data
Function block data will be transferred to RAM in the Loop Controller when the
Execute - Download command is selected from the CX-Process Tool to
transfer data.
Note If the LCB back up indication after download selection is checkmarked (check-
marked by default), the function block data will automatically be transferred to
flash memory for backup.
l
If duplex operation is used with a Process-control CPU Unit (CS1D-
CPU@@P) and data in LCB units is downloaded during duplex operation,
operation data will be backed up in the flash memory of only the active Board.
If the power supply is turned OFF before starting operation with either a hot or
cold start, the data will exist only in the flash memory of the active Board, so a
duplex verification error will occur. If this occurs, check the RDY indicator on
the standby Process-control CPU Unit Loop Controller to make sure that it is
RAM
Loop Controller CPU Unit
CX-Process Too
Download
Flash memory
Auto-
matically
transfer-
red.
Function block
data for one
Loop Control
Board
If this option is selected before
downloading, data will also be
stored in flash memory inside
the Loop Controller.
To Next Page
Need help?
General
