Crestron
RACK2
2-Series Card Cage System
Non-volatile
1. SIMPL+ Variables (Default if no options are specified, or using
"nonvolatile" qualifier or #DEFAULT_NONVOLATILE)
2. Signals explicitly written to NVRAM* (by symbols such as Analog
RAM, Analog RAM from database, Serial RAM, Serial RAM from
database, Analog Non-volatile Ramp, Digital RAM, etc.)
*Commonly used for presets (volume/lighting/dial #s).
3. Portions of the NVRAM may be set aside for implementing an
“NVRAM Disk”. This can be used to provide file system access from
SIMPL+.
NOTE:
If you extract NVRAM values to a file (
Viewport
,
File transfer
|
Save
NVRAM to File
), to simplify restoring them in the event of file corruption or to
distribute to identical control systems, remember that NVRAM values are position
sensitive in the program. When saving the NVRAM is crucial to your application, it is
recommended to place all symbols and/or modules that use NVRAM at the beginning
of your program. When NVRAM (.nvr file) is re-installed, all the values should line up
with the program. If the program is modified, and new logic that uses NVRAM is
placed before any older symbols using NVRAM, the previously stored values will not
line up and your presets will have to be re-entered.
NOTE:
The new NVRAMDISK command (available in CUZ files later than 3.030),
will fail unless it can determine the amount of NVRAM used by the program, to ensure
that the NVRAM is not overwritten. Programs compiled in SIMPL Windows version
2.04.11 or later can provide this information. In the event of a failure of the
NVRAMDISK command, ensure that your program has been recompiled in an
appropriate version of SIMPL Windows and reloaded.
Volatile
1. Digital, analog and serial signal values
2. SIMPL+ Variables (if "volatile" qualifier is used, or
#DEFAULT_VOLATILE is used)
DRAM
DRAM is used by the operating system for dynamic storage of variables, signals and
other constructs used at runtime. The actual amount of DRAM used at any given
time depends on the particular program that is running, i.e., usage is variable, or
dynamic, during normal operation.
Expandable Memory (Compact Flash)
The onboard 36MB memory of the 2-Series integrated dual bus control system is
enhanced with a 4GB expansion slot that supports off-the-shelf Type II compact
flash memory and the IBM Microdrive
hard drive. The slot is accessible on the rear
panel of the unit. Complete the procedures in the following subsections to install and
remove the memory cards. Power does not have to be disconnected to insert or
remove memory. Note that compact flash memory supports FAT32 file structure.
Operation Guide – DOC. 5958
2-Series Card Cage System: RACK2
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