High-Speed Counters

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

Application of PLC High-Speed Counters: Achieving an Accuracy Error Rate of 0.1%!

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Application of PLC High-Speed Counters: Achieving an Accuracy Error Rate of 0.1%!

“PLC High-Speed Counters: The Black Technology That Makes Equipment’s ‘Heartbeat’ Accurate to 0.1%!” 1️⃣ Single-phase Counter: The ‘Lone Ranger’ Expertise: A single signal line can handle simple counting scenarios. Pitfall: Weak anti-interference ability, prone to ‘going crazy’ under electromagnetic interference. 2️⃣ Dual-phase Counter: The ‘Dual Swordsman’ Expertise: Two signal lines distinguish forward and reverse rotation, … Read more