Part 1 History Of PLC.

History Of PLC.

1. TUTORIAL - 1 Basics of PLC History of PLC Industrial Automation

2. Before the Programmable controller Control system implemented using relay controller. Lack of flexibilty for process changes or expansion Troubleshooting: Five hours to find and five minutes to fix,it . Industrial Automation

3. History of PLC Before The days of the PLC The only way to control mahinery was through the use of relays. PLC was Introduction in late 1960's First Commorercial and successful programmable logic controllers was designed and devloped by modicon as a relay replacer for general motors. Earlier it was a machine with thousands of electronic parts. Industrial Automation

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