December 2006

Time Magazine 50 Coolest Sites

http://www.time.com/time/2006/50coolest/index.html

Winter Storm 2006 - Douglas County Colorado

DIA after the December 2006 Blizzard

http://flickr.com/photo_zoom.gne?id=332192373&size=l

Software for Starving Students

http://softwarefor.org/

Nine Inventions Edison Did Not Make

http://m4th.com/Articles/Article.php?Article-Title=9-Inventions-Edison-Did-Not-Make

Soda Constructor

http://www.sodaplay.com/constructor/player.htm

Best New Aps of 2006

http://www.lifehacker.com/software/best-of-2006/geek-to-live--the-best-apps-of-2006-221920.php

Google's Hidden Features

http://www.informit.com/articles/printerfriendly.asp?p=675528&rl=1  

Interactive Periodic Table

Interactive Periodic Table

Open Source Hardware and Software Gift Guide

Make Magazine's holiday guide to open ource gifts.

Mitsubishi PLC for Dummies

Links to Manuals

Mitsubishi Home Page

GX Developer Version 8 Startup Manual

GX Developer Version 8 Operating Manual

CPU A2A Programming Fundamentals Manual

Termininlogy

1) Devices are memory locations. Devices include:

X - Inputs

Y - Outputs

T - Timers

D - Integers

M - Bits

2) Constants and Presets:

Preceded by "K" when decimal

Preceded by "H" when hexadecimal

3) Timers:

Compared to Allen-Bradley PLC5, Mitubishi timers are all time delay-on and don't have "DN", "PRE", or "ACC".

4) Instruction Comparison to PLC5:

AB Mitsubishi

XIC LD (or AND)

XIO ANI

MOV MOV

OTE OUT

OTL SET

OTU RST

FLL FMOV

COP BMOV

AND WAND

OR WOR

XOR WXOR

EQU LD=

LES LD<

LEQ LD<=

GRT LD>

GEQ LD>=

NEQ LD<>