PLC Negative Assignment & SET/RESET Tutorial | S7-1200 TIA Portal | L09
💙Learn PLC Negative Assignment, SET & RESET instructions in TIA Portal with S7-1200. In this tutorial, we explain how to use bit logic operations, assign outputs, and control motors, lamps, and alarms. Watch step-by-step examples in Ladder & FBD languages, and learn how to configure PLC tags, monitor outputs, and simulate programs. Perfect for beginners and engineers learning S7-1200 PLC programming in TIA Portal.
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✅ Chapters
0:00 – Introduction to Negative Assignment, SET & RESET Instructions
0:50 – Review of Ladder Logic Operations & Virtual Power (RLO)
2:10 – Negative Assignment Instruction Explained with Ladder Symbol
4:00 – Comparison of Negative Assignment, NOT & Assignment Instructions
5:30 – SET & RESET Instructions Overview and Differences
7:20 – Practical Example: Turning Outputs On and Off with SET & RESET
9:10 – CPU Execution Logic: Input Storage & Program Execution Flow
10:30 – Extending the Project: 3-Phase Motor with Green & Red Lamps
12:00 – Defining PLC Tags for Outputs and Inputs in TIA Portal
13:20 – Writing Program for Green Lamp using SET & RESET Instructions
14:40 – Programming Red Lamp with Negative Logic
15:50 – Testing Program in TIA Simulation and Force Table
17:00 – Monitoring Outputs with Watch Table and PLC LEDs
17:50 – Summary & Conclusion of the Lesson
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