Ladder Logic Compiler

This node.js package provides methods for compiling and decompiling ladder logic programs.

Table of Contents

- Installation
- ll.compile
- ll.decompile

Installation

To install this application using the node.js package manager, issue the following commands:

``
npm install git+https://github.com/bakerface/ll.git
`

ll.compile

Below is an example of how to use the compiler.

` javascript
var ll = require("ll");

var program = ll.compile(
"!! this is an example of a latch with an emergency stop !!\n" +
"||--[/ESTOP]----[/STOP]----+--[START]--+------(RUN)-----||\n" +
"|| | | ||\n" +
"|| +---[RUN]---+ ||\n" +
"|| ||\n" +
"||--[RUN]-------------------------------------(MOTOR)---||");

console.log(program);

/*
[ [ 'in', 'ESTOP' ],
[ 'not' ],
[ 'in', 'STOP' ],
[ 'not' ],
[ 'and' ],
[ 'in', 'START' ],
[ 'in', 'RUN' ],
[ 'or' ],
[ 'and' ],
[ 'out', 'RUN' ],
[ 'in', 'RUN' ],
[ 'out', 'MOTOR' ] ]
*/
`

ll.decompile

Below is an example of how to use the decompiler.

` javascript
var ll = require("ll");

var program = [
[ 'in', 'ESTOP' ],
[ 'not' ],
[ 'in', 'STOP' ],
[ 'not' ],
[ 'and' ],
[ 'in', 'START' ],
[ 'in', 'RUN' ],
[ 'or' ],
[ 'and' ],
[ 'out', 'RUN' ],
[ 'in', 'RUN' ],
[ 'out', 'MOTOR' ]
];

console.log(ll.decompile(program));

/*
|| ||
||--[/ESTOP]----[/STOP]----+--[START]--+----(RUN)--||
|| | | ||
|| +--[RUN]----+ ||
|| ||
||--[RUN]----(MOTOR)-------------------------------||
|| ||
*/
``