Does anybody in here know anything about PLC s? (programmable logical control)

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If you use Allen Bradley plc mirco logix plc this step should be imp
First u need communication media ie rs232 or serial cable
Rs link software for communication.
And finally Rs logix pro sw for controlling ios...

A programmable logic controller or programmable controller is a digital computer used for automation of electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or lighting fixtures. plc are used in many industries and machines. Unlike general-purpose computers, the plc is designed for multiple inputs and output arrangements, extended temperature ranges, immunity to electrical noise, and resistance to vibration and impact.

you can expect most anything. motor contactors, motors, dc drives, electric nozzle heaters extrusion machines, lighting, industrial control, heat control, plc programmable logic controllers etc.

PLC language is programmable logic controller in other word it is a controller used to control machinery in factory assembly lines. PLC has nothing to do with Canon LBP 3010.

More info if you need, you can find it here

i had a sanyo plc sw30 wich had the same problem and it turned out to be the bulb replaced it with new one and this seemed to solve the problem. Theres a few places to get new ones but they are not cheap looking at between £150 to £180 hope this helps

Hi there, you can check out this link Learn PLC programming.
This web site runplc.com is great resource for anything you like about PLC programming, free programs for programmable logic controllers, and much much more about PLC programming basic

Try "COMx 9600,E,8,1"
LM90 is a DOS package. I assume you are using DOS 6.xx to use program. Windows will not allow DOS program to access com ports. Use a VB, C++, etc to access PLC. Be very creative in programming... convert ladder instruction to HEX with checksums.

Good Luck.