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Rung 1 Entrance_Sensor (I0.0): Entrance sensor detects person Entrance_Sensor I0.0 Emergency_Stop_NC (I0.2): Emergency stop (normally closed) Emergency_Stop_NC I0.2 Elevator_Moving (M0.0): Elevator moving status (interlock) Elevator_Moving M0.0 Entrance_Door_Open (Q0.0): Entrance door open output Entrance_Door_Open Q0.0 Rung 2 Entrance_Door_Open (Q0.0): Entrance door open feedback Entrance_Door_Open Q0.0 Entrance_Door_Timer (T0): Entrance door timer (5 seconds) TON Entrance_Door_Timer PRE: T#5s ET: 0ms OFF T0 Rung 3 Entrance_Door_Timer.DN (T0.DN): Entrance door timer done bit Entrance_Door_Timer.DN T0.DN Entrance_Door_Close (Q0.0): Entrance door close (inverted Q0.0) / Entrance_Door_Close Q0.0 Rung 4 Manual_Override (I0.3): Manual override switch Manual_Override I0.3 Entrance_Door_Open_Manual (Q0.0): Manual control of entrance door Entrance_Door_Open_Manual Q0.0 Rung 5 Exit_Sensor (I0.1): Exit sensor detects person Exit_Sensor I0.1 Emergency_Stop_NC (I0.2): Emergency stop (normally closed) Emergency_Stop_NC I0.2 Elevator_Moving (M0.0): Elevator moving status (interlock) Elevator_Moving M0.0 Exit_Door_Open (Q0.1): Exit door open output Exit_Door_Open Q0.1 Rung 6 Exit_Door_Open (Q0.1): Exit door open feedback Exit_Door_Open Q0.1 Exit_Door_Timer (T1): Exit door timer (5 seconds) TON Exit_Door_Timer PRE: T#5s ET: 0ms OFF T1 Rung 7 Exit_Door_Timer.DN (T1.DN): Exit door timer done bit Exit_Door_Timer.DN T1.DN Exit_Door_Close (Q0.1): Exit door close (inverted Q0.1) / Exit_Door_Close Q0.1 Rung 8 Floor1_Call (I1.0): Call button floor 1 Floor1_Call I1.0 Floor1_Request (M0.1): Set floor 1 request S Floor1_Request M0.1 Rung 9 Floor2_Call (I1.1): Call button floor 2 Floor2_Call I1.1 Floor2_Request (M0.2): Set floor 2 request S Floor2_Request M0.2 Rung 10 Floor3_Call (I1.2): Call button floor 3 Floor3_Call I1.2 Floor3_Request (M0.3): Set floor 3 request S Floor3_Request M0.3 Rung 11 Door_Closed_Sensor (I1.6): Door closed sensor Door_Closed_Sensor I1.6 Floor1_Request (M0.1): Floor 1 request Floor1_Request M0.1 Floor1_Position (I1.3): Floor 1 Position Floor1_Position I1.3 Elevator_Down_Motor (Q1.1): Elevator Down Motor Elevator_Down_Motor Q1.1 Rung 12 Door_Closed_Sensor (I1.6): Door closed sensor Door_Closed_Sensor I1.6 Floor2_Request (M0.2): Floor 2 request Floor2_Request M0.2 Floor2_Position (I1.4): Floor 2 Position Floor2_Position I1.4 Elevator_Up_Motor (Q1.0): Elevator up motor Elevator_Up_Motor Q1.0 Rung 13 Door_Closed_Sensor (I1.6): Door closed sensor Door_Closed_Sensor I1.6 Floor3_Request (M0.3): Floor 3 request Floor3_Request M0.3 Floor3_Position (I1.5): Floor 3 Position Floor3_Position I1.5 Elevator_Up_Motor (Q1.0): Elevator up motor Elevator_Up_Motor Q1.0 Rung 14 Floor1_Position (I1.3): At floor 1 Floor1_Position I1.3 Floor1_Request (M0.1): Floor 1 request Floor1_Request M0.1 Floor1_Request (M0.1): Reset floor 1 request R Floor1_Request M0.1 Elevator_Door_Motor (Q1.2): Elevator door open Elevator_Door_Motor Q1.2 Rung 15 Floor2_Position (I1.4): At floor 2 Floor2_Position I1.4 Floor2_Request (M0.2): Floor 2 request Floor2_Request M0.2 Floor2_Request (M0.2): Reset floor 2 request R Floor2_Request M0.2 Elevator_Door_Motor (Q1.2): Elevator door open Elevator_Door_Motor Q1.2 Rung 16 Floor3_Position (I1.5): At floor 3 Floor3_Position I1.5 Floor3_Request (M0.3): Floor 3 request Floor3_Request M0.3 Floor3_Request (M0.3): Reset floor 3 request R Floor3_Request M0.3 Elevator_Door_Motor (Q1.2): Elevator door open Elevator_Door_Motor Q1.2 Rung 17 Elevator_Door_Motor (Q1.2): Elevator door open feedback Elevator_Door_Motor Q1.2 Elevator_Door_Timer (T2): Elevator Door Timer (7 Seconds) TON Elevator_Door_Timer PRE: T#7s ET: 0ms OFF T2 Rung 18 Elevator_Door_Timer.DN (T2.DN): Elevator Door timer done bit Elevator_Door_Timer.DN T2.DN Elevator_Door_Motor (Q1.2): Elevator door close / Elevator_Door_Motor Q1.2 Rung 19 Emergency_Stop_NC (I0.2): Emergency Stop (NC) Emergency_Stop_NC I0.2 All_Doors_Close (Q0.0): Close entrance door immediately / All_Doors_Close Q0.0 All_Doors_Close2 (Q0.1): Close exit door immediately / All_Doors_Close2 Q0.1 Elevator_Moving (M0.0): Stop Elevator immediately R Elevator_Moving M0.0 Rung 20 Elevator_Up_Motor (Q1.0): Elevator moving up Elevator_Up_Motor Q1.0 Elevator_Moving (M0.0): Set elevator moving Elevator_Moving M0.0 Rung 21 Elevator_Down_Motor (Q1.1): Elevator moving down Elevator_Down_Motor Q1.1 Elevator_Moving (M0.0): Set elevator moving Elevator_Moving M0.0
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Entrance–Exit Door and Elevator Control System

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This article explains how to design a PLC ladder logic program that integrates automatic sliding doors and a three-floor elevator system
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Memory Organization and Addressing in PLC PLC Memory Addressing Modes Memory Map Siemens PLC Allen-Bradley PLC Direct Addressing Example Symbolic Addressing Example I/O AILogicHMI
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Memory Organization and Addressing in PLC

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Understanding PLC memory organization and addressing is fundamental for effective Programmable Logic Controller (PLC) programming and troubleshooting. This comprehensive guide delves into the intricacies of …
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List of Best Free PLC Training Courses Online Tank Sensor PLC Valve Key Concepts: Ladder Logic, Beginner Courses, Free Options Learn Basics Ladder Logic Practice Benefits of Free Training Cost Effective Self-Paced Learning Wide Range of Options Introductory Knowledge Beginner Friendly AILogicHMI
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List of best free PLC training course online

September 2, 2025 9 min read 74 views
Are you looking to break into the world of industrial automation and control systems? The first step is mastering Programmable Logic Controllers (PLCs). Thankfully, there …
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Top 100 PLC Programming Exercises Beginners, Students & Professionals Tank Sensor PLC Control Motor Beginner (1-30) Intermediate (31-70) Expert (71-100) PLC Language Usage Process Diagram AILogicHMI
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Top 100 PLC Programming Exercises for Beginners, Students & Professionals

August 28, 2025 7 min read 186 views
Programmable Logic Controllers (PLCs) are the backbone of modern industrial automation, controlling everything from simple conveyor belts to complex robotic assembly lines. Mastering PLC programming …
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Choosing the Right Protocol for Your PLC Application Comparison of Common Industrial Communication Protocols Protocol Speed Cost Compatibility Scalability Modbus Low Low High Low Profibus Medium Medium High Medium Ethernet/IP High High High High Profinet High Medium High High OPC UA Medium Medium Very High Very High
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Choosing the Right Protocol for Your PLC Application

August 28, 2025 8 min read 86 views
Selecting the correct communication protocols in PLC applications is crucial for ensuring seamless data exchange, efficient control, and reliable operation. This article will guide you …
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Key Differences Between Ladder Logic and Relay Logic Relay Logic Hardwired Circuits Less Flexible Difficult to Modify Ladder Logic PLC Programmed More Flexible Easy to Modify Comparison Factors Implementation Hardwired Relays Software Programmed Flexibility Low High Scalability Limited Easily Scalable Maintenance Complex Simpler Cost Higher (wiring) Lower (software) AILogicHMI
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Key Differences Between Ladder Logic and Relay Logic

August 28, 2025 7 min read 90 views
We'll examine how PLC ladder diagrams compare to relay control systems, and shed light on the evolution from traditional relay-based control systems to modern programmable …
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Human Machine Interface (HMI) with PLC Control Tank Pump Level Sensor Pressure Sensor PLC Inputs Outputs HMI Screen Operator Analog Signal Analog Input Digital Input Digital Output Ethernet / Modbus User Commands AILogicHMI
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Introduction to Human Machine Interface (HMI)

August 28, 2025 7 min read 114 views
In the realm of industrial automation, the Human Machine Interface (HMI) stands as a crucial bridge connecting operators to complex machinery and processes. Understanding the …
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