'Actual relays' presentation slideshows

Industrial Programmable Logic Controllers (PLCs)

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Chapter 2

Chapter 2. Digital Electronic Signals and Switches. 1. 2-1 Digital Signals. Timing diagram Voltage is measured on the y -axis; time on the x -axis 0 and 1 correspond to 0 V and 5 V Can be viewed using an oscilloscope. 5. 2-2 Clock Waveform Timing. Periodic waveform are Repetitive

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