الاثنين، 2 يوليو 2012

What is the PLC

What is the PLC:
PLC stands for PROGRAMMABLE LOGIC CONTROLLER This means controlling the logical programmer, a device was developed to replace the electric control the traditional uses Altaymrat and Rilhat and Alquintactorat and counters, etc., all in order to control the machinery and machine tools, for example packaging machines in the factories.
The device of the PLC in view of the entrances to the INPUT and depending on the condition of ON / OFF 0/1 and through the program in the PLC within the control Palmforeig OUTPUT see Fig.
The user will usually enter the program by a special program the PLC to your user, but ultimately do the same work required.
The devices of the PLC used a lot in life, wherever there is industry there is a PLC in the industry.
To clarify the picture is much more we all know it is light signals to control a signal light and one that is, on the assumption that the reference be red and then yellow, then green for control so we need three Taymrat to do it.
But what if we want to control a crossroads in four directions Can you imagine how much we need to control Altaymrat so, so as you can see the more control the more the need for a larger PLC.

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