PLC
A programmable logic controller (PLC) is a special form of microprocessor-based controller that uses a programmable memory to store instructions and to implement functions such as logic, sequencing, timing, counting and arithmetic in order to control machines and processes. As PLC stands for programmable logic controller, It is a control device built similar to a computer that can be programmed to use in automation of electro-mechanical
processes such as control of machinery in factory assembly lines, oil refineries, waste water treatment plants, pharmaceutical manufacturing plants, cement plants, paper & pulp industries etc.
PLCs have the great advantage that the same basic controller can be used with a wide range of control systems. To modify a control system
and the rules that are to be used, all that is necessary is for an operator to key in a different set of instructions. There is no need to rewire. The result is a flexible, cost effective, system which can be used with control systems which vary quite widely in their nature and complexity.
PLCs are similar to computers but whereas computers are optimised for calculation and display tasks, PLCs are optimised for control tasks and the industrial environment.
Input devices
The term sensor is used for an input device that provides a usable output in response to a specified physical input. For example, a thermocouple is a sensor which converts a temperature difference into an electrical output. The term transducer is generally used for a device that converts a signal from one form to a different physical form. Thus sensors are often transducers, but also other devices can be transducers, e.g. a motor which converts an electrical input into rotation.
Output devices
The output ports of a PLC are of the relay type or opto-isolator with transistor or triac types depending on the devices connected to them which are to be switched on or off. Generally, the digital signal from an output channel of a PLC is used to control an actuator which in turn controls some process. The term actuator is used for the device which transforms the electrical signal into some more powerful action which then results in the control of the process.
English
Chinese (Simplified)
Hindi
Nepali
I couldn’t refrain from commenting. Very well written!
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Hello There. I found your weblog using msn. That is an extremely smartly written article.
I’ll be sure to bookmark it and return to read
extra of your helpful info. Thanks for the post. I will certainly comeback.
Your article helped me a lot, is there any more related content? Thanks!
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Everything is very open with a very clear explanation of the issues.
It was truly informative. Your site is very useful. Thank you for sharing!
Your article helped me a lot, is there any more related content? Thanks!
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
I absolutely love your website.. Pleasant colors & theme.
Did you create this web site yourself? Please reply back as I’m looking to
create my own website and would like to find out where you got
this from or exactly what the theme is named. Many thanks!
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Высокотехнологичная спецтехника Unisteam com – доступные цены и быстрая доставка
производство спецтехники unisteam com
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
This is a great article!
Hello Donation Aid to Gazze Filistin Gaza and Palestine Tether TRC20 USD. Address: TKXAAun1KtAZ1XQjtE7PAEnkutoNHnNJ6n
This is a great article!
This is a great article!
Hello Donation Aid to Gazze Filistin Gaza and Palestine Tether TRC20 USD. Address: TKXAAun1KtAZ1XQjtE7PAEnkutoNHnNJ6n
This is a great article!
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
This post is a perfect example of why I follow your blog. Always practical advice.
I savour, cause I discovered exactly what I used to be taking a look for.
You’ve ended my 4 day long hunt! God Bless you man. Have a great day.
Bye
I’ve been following your methodology for 6 months now with great results.
This solved a problem that’s been bothering me for months. Thank you!
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
This solves a pain point that’s been affecting our entire industry.
I’ve shared this on social media. Everyone needs to read this!
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
A leading spine neurosurgeon is being condemned for a video depicting him tearing down a female MP’s election sign and dumping it in a skip while saying how to cover up the evidence.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
A good blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that qualify a blog to be a one
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
whoah this blog is great i love reading your posts. Keep up the great paintings! You already know, lots of people are searching around for this information, you can aid them greatly.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Dog registries help in tracking a pet’s breed and confirm authenticity.
Have you registered your dog yet?
Excellent beat ! I would like to apprentice whilst you amend your website, how can i subscribe for a weblog website? The account helped me a acceptable deal. I had been tiny bit acquainted of this your broadcast provided brilliant transparent concept
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Hello Donation Aid to Gaza and Palestine Tether TRC20 USD. Address: TKXAAun1KtAZ1XQjtE7PAEnkutoNHnNJ6n
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
I’m so glad people are giving these dogs a
second chance.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
This is a great article!
Interesting and nice article, thanks for your effort!
hey there!
Fine news for all us
hey there!
hey there!
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
hey there!
Definitely, what a magnificent blog and informative posts, I definitely will bookmark your website.Best Regards!
hey there!
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Your article helped me a lot, is there any more related content? Thanks!
hika ah thil pakhatkhat a cang khomi a um maw ka ngandamnak caah zeidah a tuah?
hika ah thil pakhatkhat a cang khomi a um maw ka ngandamnak caah zeidah a tuah?
custom sign co
Anthony roof repair lutz
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Playing Aviator Event in Batery aviatorbatery.in Bookmaker Presence in India.
aviatorbatery.in
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
great post!
great post!
Playing Aviator Round aviatorbatery.in in Batery Bookmaker Comrades in India.
aviatorbatery.in
Playing Aviator Gamble in Batery aviatorbatery.in Bookmaker Company in India.
aviatorbatery.in
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Playing Aviator Game in Batery aviatorbatery.in Bookmaker Presence in India.
aviatorbatery.in
Playing Aviator Round aviatorbatery.in in Batery Bookmaker Comrades in India.
aviatorbatery.in
great post!
Your article helped me a lot, is there any more related content? Thanks!
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
This provides great clarity.
Definitely food for thought.
this is a great post!
this is a great post!
this is a great post!
this is a great post!
It’s actually a nice and useful piece of information. I’m glad that
you simply shared this useful info with us. Please
stay us informed like this. Thank you for sharing.
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
This is a realy intersting post. Thank you.
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
this is a great post!
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
Having read this I thought it was rather informative. I
appreciate you spending some time and effort to put this short article together.
I once again find myself personally spending
way too much time both reading and commenting. But so what, it
was still worth it!
Your article helped me a lot, is there any more related content? Thanks!
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
this is a great post!
this is a great post!
this is a great post!
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Magnificent goods from you, man. I’ve understand your stuff previous to and you are just extremely great. I really like what you’ve acquired here, certainly like what you’re stating and the way in which you say it. You make it enjoyable and you still care for to keep it smart. I cant wait to read much more from you. This is actually a tremendous site.
this is a great post!
this is a great post!
this is a great post!
Your article helped me a lot, is there any more related content? Thanks!
this is a great post!
this is a great post!
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
this is a great post!
this is a great post!
this is a great post!
Thank you very much for sharing, I learned a lot from your article. Very cool. Thanks.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
this is a great post!
Thank you very much for sharing, I learned a lot from your article. Very cool. Thanks.
this is a great post!
this is a great post!
Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
With havin so much content do you ever run into any problems of plagorism or copyright violation? My site has a lot of completely unique content I’ve either authored myself or outsourced but it looks like a lot of it is popping it up all over the web without my agreement. Do you know any techniques to help protect against content from being stolen? I’d genuinely appreciate it.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Looking forward to your next post. Keep up the good work!
Thank you very much for sharing, I learned a lot from your article. Very cool. Thanks.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Thank you very much for sharing, I learned a lot from your article. Very cool. Thanks.
Thank you very much for sharing, I learned a lot from your article. Very cool. Thanks.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
Can you be more specific about the content of your article? After reading it, I still have some doubts. Hope you can help me.
Magnificent goods from you, man. I have understand your stuff previous to and you’re
just too great. I actually like what you’ve acquired here, really like what you are stating and the way in which you say it.
You make it enjoyable and you still care
for to keep it wise. I cant wait to read far more from you.
This is really a tremendous web site.
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.