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LinkedIn Learning

Input Sensors with PLC: 4-20 mA Current Loop

via LinkedIn Learning

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Learn about the 4-20mA current loop circuit and its components, a circuit used when connecting analog industrial sensors to PLCs (programmable logic controllers.

Syllabus

Introduction
  • The 4-20 mA current loop circuit
  • What you should know before watching
1. Introduction to PLC and Industrial Automation
  • Introduction to the 4-20 mA loop
  • Industrial 4-20 mA current loop basics
  • Industrial 4-20 mA current loop components
  • Industrial transmitters overview
  • Optional: Calculating mA current reading
  • Example: Wiring a temperature sensor to the PLC
  • Why start from 4 mA instead of 0 mA?
  • Why choose 4 mA instead of 10 mA?
  • Load resistor in a 4-20 mA current loop
Conclusion
  • Next steps

Taught by

Zara Khalil

Reviews

4.8 rating at LinkedIn Learning based on 292 ratings

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