System information

Crestron 3-Series Control Systems Reference Guide
Reference Guide – DOC. 7150A 3-Series Control Systems • 19
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.)
Volatile (SDRAM)
1. Digital, analog, and serial signal values
2. SIMPL+ Variables (if "volatile" qualifier is used, or
#DEFAULT_VOLATILE is used)
Volatile SDRAM is used by the operating system for dynamic storage of variables,
signals, and other constructs used at runtime. The actual amount of SDRAM used at
any given time depends on the particular program that is running; that is, usage is
variable, or dynamic, during normal operation.
NOTE: SDRAM is internal to operations and is not available to the programmer.
Running Programs from External Storage
Certain 3-Series processors are equipped with external storage ports. On power-up or
a hardware reset (HW-R), the control system first checks for a program on external
storage (if installed) and then internal flash.
Crestron Toolbox can be used to control the actions of the control system when
external storage is inserted into a running system.
Perform the following procedure to determine how the control system operates with
external storage:
1. Open Crestron Toolbox and establish communications with the control
system as described in the “Establishing Communications with the Control
System” section on page 6.
2. Select Functions | Compact Flash to display the “Compact Flash”
window.
“Compact Flash” Window