Crestron PRO3 Reference Guide

Reference Guide – DOC. 7150B 3-Series Control Systems • 3
3-Series Architecture
The following sections provide an overview of the architecture of a 3-Series
control system.
Memory and Directory Structure
A 3-Series processor has between 256 MB and 1 GB of built-in SDRAM
(synchronous DRAM) volatile memory. For more information regarding the
memory specifications for each 3-Series control system model, refer to the
appropriate product page at www.crestron.com
.
Flash memory contains the file system inside the 3-Series control engine. The
3-Series processor also has 128kB of NVRAM (nonvolatile RAM). NVRAM contains
program variables that are retained after the loss of electrical power, while
volatile memory is lost.
Flash Memory
Flash memory for a 3-Series control system contains the following components:
• Operating system (.puf file)
• SIMPL and SIMPL Sharp Pro programs
• SIMPL+® programming modules
The files that reside in flash memory confirm to a flat directory structure. The
following table details the overall file system:
3-Series Control System Directory Structure
TOP LEVEL SECONDARY LEVEL DESCRIPTION
\ The root of the file system
HTML Web pages
Nvram NVRAM legacy directory
ROMDISK/User/display Contains files for the onscreen display
RM/RM2
Mounting point for external removal
media
Simpl/AppXX
Control system program files (where
XX is the program number)
Sys
Contains vario
us system configuration
files
User Provided for user-defined files

Crestron PRO3 Specifications

General

Brand	Crestron
Model	PRO3
Category	Control Systems
Language	English