Chapter 1
Introduction

The RexDraw application is a graphical tool designed for a creation of real-time control algorithms with the support of a large function block library of the REX Control System [1]. A developer may utilize many function blocks from simple comparators and timers to advanced and specialized blocks designated for analog signal processing and regulation. There are various specialized regulators including PID regulators with automatic tuning of parameters. Any algorithm developed in the RexDraw may be instantly compiled and downloaded into arbitrary target device (Linux IPC, WinPAC, Raspberry Pi etc.). After the algorithm is successfully compiled and downloaded to the target device, it is possible to switch RexDraw to a "Watch" mode in which all parameters and variables of all function blocks may be inspected or adjusted. A connection may be established locally or over Internet using standard protocol IPv4 or IPv6. A secure connection over SSL protocol is supported.

A detailed documentation for function block library may be opened at any time with the F1 key. The documentation is installed automatically in the default setup configuration and we advise not to uncheck it.

 1.1 Starting RexDraw
 1.2 Working Area
 1.3 Application Modes
 1.4 Main menu
  1.4.1 File
  1.4.2 Edit
  1.4.3 View
  1.4.4 Compiler
  1.4.5 Target
  1.4.6 Project
  1.4.7 Tools
  1.4.8 Settings
  1.4.9 Window
  1.4.10 Help