Stair Case Logic | Stairs BULB On:Off | PLC programming | PLC PROGRAMMING TUTORIAL FOR BEGINNERS

PLC program for two ways switch logic for staircase light in house – Problem Description:- • In duplex type house there are ground floor and first floor and sometimes second floor also. • Sometimes people need to go from ground floor to first floor or from first floor to ground floor by staircase provided in house. • But in staircase there is no sunlight so people need a lamp/light to see the steps of the staircase easily. • Here we are using a simple PLC to control this lamp using two switches, one switch at ground floor and second switch at first floor to control one lamp as shown in below figure. • Note: we can also build the circuit using simple relays/switches also. This video tutorial only for understanding the basic concept of 2 way switch using a PLC Ladder Logic. Problem Solution:- • We will solve this problem by simple automation. As shown in video consider one simple house with one floor and staircase is provided in the house. • Here we will set lighting system for the users to switch ON/OFF the light whether they are on bottom of the stair or at top. • We will provide separate switch for each floor as shown in above video. List of inputs/outputs Digital Inputs SW1 = I0.1 SW2 = I0.2 Digital Outputs Lamp=Q0.0 Program Description For this application, we used S7-1200 PLC and TIA portal software for programming. In above program, we have added two NO contacts of SW 1 (I0.1) and SW 2 (I0.2) in series and NC contacts of SW1 (I0.1) and SW2 (I0.2) in parallel of this series SW1 & SW2 NO Contacts. If the status of the bottom switch (SW1) and status of the top switch (SW2) are same then lamp will be ON. And if either status of the bottom or top switch is different from other then lamp (Q0.0) will be OFF. When lamp (Q0.0) is OFF then user can ON the lamp by changing status of any switch. Also user can turn OFF the lamp by changing the status of one of the two switches. Our Latest PLC-SCADA Video Collection RSLogix 500 User Instruction | PLC User Instruction | PLC Programming :- https://www.seevid.ir/fa/w/ttJYRnbvxRo Forward-Reverse Connection of Same Motor | PLC Programming :- https://www.seevid.ir/fa/w/PYBWo-v7ChU TON Instruction | Time on Delay | PLC Programming :- https://www.seevid.ir/fa/w/UQ1opjU7CwI TOF Instruction | TOF(Time off Delay) Timer | PLC Programming :- https://www.seevid.ir/fa/w/LBNbFb2XyNY Introduction to PLC | Basics & Example of PLC | PLC - SCADA PART 1 :- https://www.seevid.ir/fa/w/8wuuaiQ0Ohc Introduction to Automation | Types & Application of Automation | PLC - SCADA PART 2 :- https://www.seevid.ir/fa/w/372DqUtJnrw PLC to PC Communication with Ethernet | Profinet Protocol | PLC - SCADA PART 3 :- https://www.seevid.ir/fa/w/AvvhYFuQ7pA PLC Panel Demo & Designing | PLC control panel components |:- https://www.seevid.ir/fa/w/LkEMKyWBBGU Fundamental of ladder logic | Electrical ladder Diagram :- https://www.seevid.ir/fa/w/RQq6XeeAmQI Fundamental of Ladder Logic programming :- https://www.seevid.ir/fa/w/UvL34stnoyQ Basic Logic Gates | PLC ladder diagram example  :- https://www.seevid.ir/fa/w/fhTdcHnd3tA Motor start:stop logic with ladder logic | PLC Programming  :- https://www.seevid.ir/fa/w/6oiQGshTCuM Stair Case Logic | Stairs BULB On:Off | PLC programming  :- https://www.seevid.ir/fa/w/XGXLpVJqjQY Basics of PLC timers | Types of PLC timer :- https://www.seevid.ir/fa/w/FrLlIGuMpi8 Timer On and Off Delays Example | PLC Programming Examples :- https://www.seevid.ir/fa/w/1aARYh6Z6-Q PLC ladder logic programming eg | Timer ON/OFF delay eg:- https://www.seevid.ir/fa/w/yS3xaa3_9GU Sequential delay example using timer | PLC ladder logic :- https://www.seevid.ir/fa/w/h_lixqxizQk Automatic door System using Timer in PLC :- https://www.seevid.ir/fa/w/sbcLS1n1MtY Traffic light Control example using timer in PLC :- https://www.seevid.ir/fa/w/zja8PS8-WpE Share, Support, Subscribe!!! Subscribe: http://bit.ly/wscubechannel Google Reviews : https://goo.gl/LxpEsU Facebook : https://www.facebook.com/wscubetech.india Twitter : https://twitter.com/wscube Linkedin : https://www.linkedin.com/company/wscube-tech Google + : https://plus.google.com/+wscubetechjodhpur Youtube : Website : http://wscubetech.com/

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