A Programmable Logic Controller is a solid state/computerzied industrial computer that performs discrete or sequential logic in a factory environment.
It was originally developed to replace mechanical relays,timer,counters.
Sunday, May 16, 2010
Common Cathode Seven Segment to PLC
The physical appearance of the seven segments
Definition of common Cathode seven segment with Light Emitting Diode (LED)
Internal Circuit Diagram of common Cathode seven segment
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