Memory; Dram Memory - GE IC755CxS06RDx User Manual

6.5 Memory

94 GFK-2847R
For public disclosure

6.5.1 DRAM Memory

The QuickPanel + Operator Interface is equipped with Dynamic RAM (DRAM). Part of
the DRAM is reserved for the Windows operating system and is not accessible by user
applications. The remaining memory is split between two functions: an object store for
temporary file storage and the main memory for running programs.
Typically, compressed programs stored in flash memory are expanded and moved to
DRAM for execution. Temporary storage of program variables or data files is also
provided by DRAM. Any data stored in DRAM is not retained through a power cycle or
restart.
The split between program memory and storage memory can be adjusted as necessary to
make more room for one or the other, depending on specific application needs. For
example, if an application is short of memory, alter the DRAM memory allocation from
the System Properties window.
Caution
Setting the Program Memory too low may prevent
additional applications from starting, or may cause
currently running applications to fail due to lack of
memory.
Setting the Storage Memory too low may prevent
the saving of files into the object store portion of the
file system, which may also cause application
failures.
For the QuickPanel + 6" display unit, setting the
Storage Memory too high or to extreme limit may
make the device become unresponsive to launch any
applications or windows and it may also require a
power cycle. It is recommended that the Storage
Memory is set to a valid limit.
QuickPanel⁺ Operator Interface User Manual