System information

Crestron 3-Series Control Systems Reference Guide
Reference Guide – DOC. 7150A 3-Series Control Systems • 17
3-Series Memory & Directory Structure
Introduction
A 3-Series processor has 256 MB of built-in memory (volatile). The following
diagram illustrates the memory structure of the 3-Series Control System.
3-Series Memory Structure
256 MB Volatile Memory
128 MB System Memory
1
– 8 GB Flash
(SIMPL Program Storage, Web
Files, Accessible Directory
Structure)
Expandable Using
External Memory
128 kB NVRAM
Flash memory contains the file system inside the 3-Series control engine. NVRAM
contains program variables that are retained after the loss of electrical power.
Volatile memory is lost after a power failure. Refer to the lists that follow for a
breakdown of memory usage for program-related information stored in the unit.