TangentLife @rsawebsites-blog - Tumblr Blog

Unity 3D real-time city game project

Learn how I made this unity3d real-time strategy game

#unity3d #unity2d #unitytips #gamedev #gamedesign

#unity3d #rts #strategy #unity2d #tutorial

.What is plc programming and industrial automation?

For those who are in the conventional programming environment. Where php, python,java and c++ is on everyone’s lips you may or may not have heard of plc programming and industrial automation. The fact is that plc programming or ladder which is the language which plc programming is done in. Is very similar to conventional assembly language. Which makes the learning curve slightly more challenging for developers which are operating in the c based language space.

So what can you do with plc programming, well in short you can control machinery. Usually industrial grade manufacturing machinery. The plc is a device which allows you electrically control a machine which is driven by electricity. Using complex ladder logic you can do advanced control of robotics, machines and even your home.

How does plc programming work?

PLCs all basically work on the principle of relay switching which allows you to turn inputs and outputs on and off. In order to drive your applications. There are two main types of inputs and outputs, that is digital and analog inputs and outputs. Digital in most cases work on two ranges 24VDC or 0V or ground. Analog can be in ranges on the voltage and milli amp spectrum. This allows you to read levels of a input and send a level as output. Usually in ranges of 0 – 10VDC or 4- 20mA which can be read in by the plc for use within the plc program. Analog can be extremely useful in cases where a sensor outputs a certain voltage when getting a certain trigger. This allows you to integrate most sensors as long as they are within the ranges for the plc to read.

In some cases you will require a electronic pcb circuit to control a sensor so that it can apply voltages or milli amp ranges in a certain range for your plc applications. This usually includes step down circuits, amplifiers and other forms of circuits which puts input from a sensor within an acceptable range for your plc to read the value.

Is it hard to learn plc programming?

Generally not as plc programming is simply just controlling inputs and outputs of the plc which then drives electricity either through a contactor or relay which then powers a device. As a result most of the programming consists of timers, open and closed switches and rising and falling edges. Here is an example of a typical simple plc program.

Typical basic plc programming example

In the above image you see an open contact turning on a M1 register. This simply could be like a light bulb application. This program in fact is so simply it is easier to use a plc than to even create your own circuit.

What is something to keep in mind with plcs and industrial automation?

Not all industrial automation applications are the same and you need to double check what sorts of pumps and motors. You will be using in the application. Some require 3 phase power whilst others do not require 3 phase and can be simply driven with a regular relay. To power a motor this can work. Other devices you may see in these applications are what is referred to as vfds or variable frequency drives. These are used to control the speed of motors based on a pwm frequency signal which is sent to the vfd. These are usually used in motors and pumps in industrial automation applications.

The post PLC Programming and Industrial Automation appeared first on Ninja Code Tutorials.

#IFTTT #WordPress

How to increase blog traffic fast and for free - seo for beginners tutorial

#how #to #increase #blog #traffic #fast #freee #seo #for #beginners #tutorial #2018 #2017

How to trade forex for beginners

#how #to #trade #forex #for #beginners #2017

How to choose a domain name for a blog

#how #to #choose #domain #name #blog #blogging #blogger #blogs

Blogging for beginners - how to choose a niche for your blog

#blogging #beginners #blog #how #to #choose #niche #keyword #research #tutorial

What to blog about to make money - ( Top 10 blog topics )

#blog #about #make #money #what #top #topics

Blogging for beginners - Step by step guide 2018

Check out this awesome video about blogging for beginners - step by step guide for 2018

#blogging #beginners #for #step #by #2018 #guide #tutorial #series #video #wordpress #blog

How to create a wordpress theme from scratch part 1

#how #to #create #a #theme #from #scratch

Rode smartlav+ lavalier microphone review

#rode #smartlav #microphone #review

How to start a blog video campaign

#blogging #bloggers

#start #a #blog #blogg #blogging #how #to #blogger

Rode smartlav+ lavalier microphone review

Rode smartlav+ lavalier microphone review full guide

#rode #microphone #review #smartlav

blue yeti vs at2020

Because it enables you to use espresso, coffee, or coffee pods, you’ll have a great deal more versatility than you’d with different machines, its frothier is not hard to use, and we also found that it is extremely simple to keep clean. Snowball iCE is a good high quality microphone for under $50. As a result of this, the Blue Snowball might be perfect for you. When you’ve checked out the Blue…

View On WordPress

#Gear

How to make a good first impression

Make a good first impression

If you have always wanted to know how to make a really good first impression here is the ultimate guide in everything you need to practice on a daily basis to get there. Check out the below site for an in depth guide on how to achieve this.

How to make a good first impression

#good #first #impression #how #to

Best hoodies for men inspirational - Top four

Best hoodies for men inspirational - Top four. Here is a basic list of some of the top best hoodies for men.

https://www.youtube.com/watch?v=lhsVv-YSYNM

#men #hoodies #best #hoodie #inspirational #motivational

Inspirational, Motivational and entrepreneurial hoodies for entrepreneurs

Inspirational, Motivational and entrepreneurial hoodies the top four characteristics of a entrepreneur. Awesome for any entrepreneur. This is great for any entrepreneur looking for daily inspiration to work on the four core attributes of being a entrepreneur.

https://www.youtube.com/watch?v=BjRqKdDx1vo

#hoodie #hoodies #motivational #inspirational #entrepreneur #entrepreneurial

What are command line arguments?

The command line arguments are usually options or text which you can pass to your program by adding them to the end of the command execution. Here is an example of how this would look.

python3 test.py John

In this case we would be passing the extra command line option as the word John.

The basics of command line arguments

In order to gain access to the command line arguments you would need to make use of the sys class in python. First of all lets import that in our code so that we can start making use of it.

import sys

Once this is done we should now have access to the variable sys.argv. Which essentially stores all our arguments in a python list. Starting from zero. Zero will hold our script name so in the case of our above example it should be test.py. From index one up until the number of arguments we passed is our arguments we passed in when executing our script.

We can now do a few things which will allow us to figure out some important things about our arguments. For example we could get the size of our sys.argv list which will tell us how many arguments we have with the following code:

len(sys.argv) – 1

len giving us the length of our argument list and -1 is for subtracting our script name from our arguments. We could also just output the original arguments with the str function which will convert our python list to a string.

print(str(sys.argv))

Some example python code showing how it works

import sys print(sys.argv) print(str(sys.argv)) print(len(sys.argv) -1)

Example output using the command.

python3 argumentstest.py name surname

Python command line arguments how to

Conclusion

Try to incorporate this techniques into your python applications. They are particularly useful for command line applications which need to run as background processes and you need to be able to set options when running them initially.

Resources

Here are some other resources you may want to look into as well to further your knowledge. Which uses a few more advanced techniques to parse arguments.

http://ift.tt/10Zv1cx

The post Python command line arguments how to appeared first on Ninja Code Tutorials.

#IFTTT #WordPress

Trending Blogs

Recently Viewed Blogs

TangentLife