frequency measurement

Detailed Explanation and Application of Siemens S7-1200 PLC High-Speed Counter

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Detailed Explanation and Application of Siemens S7-1200 PLC High-Speed Counter

The S7-1200 CPU provides up to 6 (1214C) high-speed counters, which count independently of the CPU’s scan cycle. The measurable single-phase pulse frequency is up to 100KHz, and for quadrature or A/B phase, it is up to 30KHz. In addition to counting, it can also be used for frequency measurement. The high-speed counter can be … Read more

Maximizing Oscilloscope Measurement Accuracy

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Maximizing Oscilloscope Measurement Accuracy

Improving the accuracy of an oscilloscope is not difficult, but attention to detail is required. This article will explore various methods to enhance oscilloscope measurements. Using Multiple Grids to Maintain Dynamic Range A common use of an oscilloscope (4 channels) is to sacrifice one-quarter of its dynamic range by attenuating the amplitudes of several signals … Read more