ControlDraw
Dedicated to improving your control systems with Process Control System models
Home
Company
About Control
Consulting
What's new
Our Clients
Library
ControlDraw
Overview
FAQ
Features
About Diagrams
Automation Models
Database
Screens
Support
Download
Updates
Online manual
Prices
Free Software
Other Downloads

A number of types of diagram can be produced with ControlDraw.
They all work in the same way, the only difference being the Symbols used and their classes (Read about Classes in the Online Help.)
The following types of drawing can be produced, along with any other diagram that consists of objects connected to each other.

ControlDraw is not limited to this set of diagrams, since you can create your own symbols define your own Drawing Types.
You can also mix the types in one page. In fact ControlDraw makes no distinction between the diagram types - they are just a convenient way of selecting the set of objects you want to put into a diagram.

ControlDraw

Typical Use

Grafcet / SFC

Sequential Logic, Procedural control. See Home of GRAFCET (SFC) for more on these diagrams.

SAMA Loops

Modulating Control Loop diagrams

Logic Diagram

On/Off Control, Interlock Logic

PFC Procedure Function Chart

SP88 Recipe Procedures
See also ControlDraw Procedure Charts

Process Cell 
Unit
Equipment modules

- Small schematic diagrams of the controlled plant, for Units, Common Resources etc
- Control System Graphics

Unit States

Unit State logic

Process Flow Diagrams Diagrams showing basic material flow and process parameters 

Process or Piping and Instrument Diagram

a detailed graphical representation of a process including the main equipment and flows

State Transiton Diagram (STD) A diagram showing states and the transitions that cause state changes

































All diagrams can be mixed, for example
Distillation with State Based Control.html

Another important and unique feature of ControlDraw diagrams in that  they be made polymorphic
 
Such diagrams have Variants - so if you have, say, 10 similar tanks, each with their own tag numbers and some with and other without a Cooling Jacker you need only one diagram with 10 variants