₦airaland Forum

ytdivine:
I would like @Rawsh55 , my runaway class rep @Southboy, and other serious students to upgrade to this level.
The picture below is an input from Uzoma Awaka.
You can have millions of correct answers to my assignment above, that's why it's logic

ytdivine:
Meanwhile, write a ladder logic program that involves two NO and two NC inputs with only a coil as output.
Let see how serious you guys are. Send your work to aniobinnaeee@yahoo.com

ytdivine:
Very good input from Rasheed Sanni. May I know your Nairaland user name.

You must learn to develop and task your brain. This is a must for prospective Automation experts. This is a mentorship class.

Only one person responded to my assignment. Where are others?

Southboy:
He has said he is not interested in getting paid, I just think the best way would be to do it outside of nairaland or we have a fixed time for the class.

Southboy:
Enough people didn't show interest

Southboy:
Hello Everyone

ytdivine:
In automation, we can group the system into three major units
a, Field devices (sensing devices)
b. Actuators ( action devices eg motors)
c. Program (written instructions)

The signals from the field devices form the input to the PLC while the output from the PLC acts on the actuators.
The output depends on the written logic programs.
Now let's illustrate with this example.
I entered into a hotel named Park inn in saint Petersburg Russia, the main entrance door immediately opened on it's own without human assistance, it closed the moment I entered inside. I have not experience this in Nigeria, maybe such system might exist, I don't know.
Let's explain the automatic door.
It has two sensors, one at the outside, the second position inside. These two sensors are referred as contacts inside the logic program. The door also has a motor(actuator) that open and close it.
Motor action is dependent on the output signal from the PLC.
Let's call the first sensor input A and the second sensor input B.
The moment you stand in front of the door, the sensor detects your presence and send a 24vdc signal to the PLC, the input A/Contact is activated and the coil( output) is energized, the door opens.
The moment you enter inside, the input B/Contact is activated, thereby resetting the coil(output), the door returns back(closed)
Many confusions, feel free to ask your questions.

Rawsh55:
Individual schedule may not permit us to follow up like this..

I’ll suggest you make a time frame that interested participants can stick to or have a telegram group it

ytdivine:
You can't understand this program without very active participation, the reason why I view it as waste of my precious time and energy.
Even my powerful course rep @southboy said he has lost memory of some things discussed, that shows lack of assimilation.
Please let only the serious guys indicate their interest not the silent followers

Southboy:

bestbiz17
Kingslaw
mosho2good
zealousayo
Akinzola
southboy
Jokolly
thedarkened
newusername
smartphil
eddyboy
bright12660
doghorp
cleardway4me
Username of everyone that has signified interest to join the class

tunnero2012:
I have these Tokunbo and Naija used cars for sale
All the cars are very clean. I sell clean cars only

NAIJA REGISTERED CARS
2000 upgraded to 2002 Sienna Registered 1st body fabric Ac 1.780m

Pimped 2001Toyota Camry 4plugs Ac 1.5m

2004 Toyota Corolla Registered Ac 2.3m

2004 Toyota Camry XLE Registered 4plugs Leather Ac 2.150m

2004/5 Toyota Highlander Limited Registered 3row leather Ac 2.8m

2005 Lexus Es330 Registered Leather Ac 3m

2008 Toyota RAV4 Registered Fabric 4plugs Ac 3.1m

2009 Toyota Camry Registered Fabric Ac 4plugs 2.650m

Pimped 2009 Toyota Corolla Registered Ac 3.150m

2010 Toyota Camry Sport Registered Fabric Reverse Camera Formica Ac 4plugs 3.350m

2010 Toyota Hiace Bus Registered 6.2m

2010 Hyundai Elantra Registered fabric Ac 2.8m

2010 Benz Glk350 Registered Full Option Reverse Camera Panoramic Power Boot Ac 6.1m

2010 Acura Zdx Registered Full Option Reverse Camera Thumbstart Panoramic Roof Ac 6.350m

2010 upgraded to 2016 Lexus Rx350 Registered Full Option Ac 7.7m

2013 Toyota Corolla Registered Leather Ac Reverse Camera 4.250m

ALL CARS ARE SUPERCLEAN WITH NO ISSUE
I SELL ONLY CLEAN CARS

U can call me on 08025531898
Only serious buyer can reach me on WhatsApp 08176880010 for pictures.

Where’s the Toyota rav4… pls post it !

Maxilight:
This car is Worth 1.5

Prayfortheworld:
Can i do 160

Prayfortheworld:
What phone do you want to swap with i have a clean x i hardly use it because i have android..
How much i go add

Oyebola85:
290k

MaxiB1242:
What's your location..?
Make i give you 280k