1. By Sameer Allan Alawnah Salman Jamil Shtayeh

2.  Replacement for Relay-Based Analog Controlling System  Become New type of controlling system ( digital )  Add a lot of things that does not exist in Analog Controlling System Counters Timers Arithmetic Operations

3.  Microprocessors with integrated memory and peripherals  Very powerful controlling devices  Programmed by assembly, C and basic programming languages.  Relatively cheap  Relatively complex to program

4.  Program PIC in PLC Fashion (Ladder Diagram)  Combine the advantages of PLC ( ease of programming ) and the advantages of PIC ( low cost )  Typical PLC with 8 inputs and 8 outputs may cost from $100 to $200 but with our project you can have 16 input and 16 output for less than $50

5.  Compiler  Two Major Parts ◦ Kernel  Parser  Code Generator ◦ Designer  GUI for the Compiler

6.  GUI for the Compiler ( input is Ladder Diagram)  The Output of it is the Acyclic Directed Graph Representation of the Drawn Circuit  Very Complex and Time Consuming.

7.  Left Line is the Power Line  Last Node from the Right is the Output  Sequential Nodes AND Operation  Branching Nodes OR Operation  Execution From UP-Down Right-Left  Output Node must be the last Node  Output  Counter  Timer  etc …

8.  The Most Important part in the Project  Parser take the ADG from Designer and Build the Parse Tree  Code Generator will Generate Assembly from Parse Tree

9. sameer@alawnah.com