DCSS is the core of the DCS system. The 'dcss/src' directory contains 'C' code
which acts mostly as a message router. This code also maintains a memory
mapped file (i.e. the database.dat file), where copies of the motor
positions and general configuration of the beam line devices are stored.
The 'dcss/scripts/engine' directory is where the TCL 'scripting engine' code is located. The 'dcss/src' and 'dcss/scripts/engine' directories are core code and modifiying this code could fundamentally change the behavior of the system.
The 'dcss/scripts/devices' directory is where the 'scripted device' definitions are described in tcl scripts. The 'dcss/scripts/operations' directory is where the scripts for automation and complex sequencing are placed.
The following subsections describe the steps for configuring a simple beam line.