Crestron electronic CP2 Manual De Usuario

2-Series Integrated Control Processor 

 

Crestron CP2/CP2E

series control engine. Non-volatile memory contains information that is retained after 
loss of electrical power. Volatile memory is lost after a power failure. Refer to the 
lists below for a breakdown of memory usage for program-related information stored 
in the unit.  

The 4MB flash memory consists of approximately 1.5MB used for firmware, and 
approximately 2.5MB available for SIMPL, SIMPL+, and Web pages. The files that 
reside in flash conform to a flat directory structure. The following table presents the 
structure of the overall file system. 

\

Root of the file system

DISPLAY

Legacy directory used in ISYS panels to hold 
display lists

SYS

Contains various system configuration files

SETUP

Legacy directory used in ISYS panels to hold 
setup files

HTML

Web pages

SIMPL

Control system program files

SPLUS

Simpl+ module files

USER

Used for user-defined files

MAILBOX

Directory contains the user mailbox file

 

Although the file system is case insensitive, the case is preserved to maintain file 
checksums.  

1.  SIMPL+ Modules  

2.  SIMPL+ Variables (using "nonvolatile" qualifier or 

#DEFAULT_NONVOLATILE) 

3. SIMPL 

Program 

 

4.  Operating System (.cuz file) 

5.  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.)  

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 logic is placed 
before any symbols using NVRAM, the previously stored values will not line up and 
your presets will have to be re-entered 

1.  Digital, analog and serial signal values 

2.  SIMPL+ Variables (Default if no options are specified, or if "volatile" 

qualifier is used, or #DEFAULT_VOLATILE is used) 

•  2-Series Integrated Control Processor: CP2/CP2E