Rslogix 500 Timers TON TOF RTO Explained
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- Опубликовано: 2 апр 2019
- This explains RsLogix 500 instructions: TON (Timer on delay), TOF (Timer off delay), and RTO (Retentive Timer On).
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Excellent explanation. I like the ways you explain as a person who has tons of engineering experience. Thank you.
You are welcome!
@TimWilborne can you please do one with TON and TOF combination program or if u have one already made, please what the title for the video
Awesome video - very concise and thorough walkthrough of the different timers, a couple of which I've never wanted to mess with because I didn't understand well enough. Thanks for all the quality content you put out!
Thank you Jason. Next week I'll answer that question I posed at the end of the video about how timers track time so make sure you are subscribed.
Jason VanHalle u
@@TimWilborne plzz give your contact number
I'm not sure if this is the scope of the question or not but I wanted to take a crack at it. In the processor the CPU has a digital clock everything in the PLC is timed on this clock. One good thing to look at to get an understanding of how this works is to look up timing diagrams and digital logic. I'm not sure if this is what you meant here or not, but just thought I would take a try. By the way great video, as always. I find myself watching your videos more often than not on my way to work, because you have a way of explaining things to where I always gain some sort of insight even from the basics. Are there something I haven't thought about or something that I can't gain from the textbook. I hope people see the value that you are really adding to their life with the content that you create, it really will change someone's life. Thanks as always Tim
Check out this video on how the timer works under the hood. The main take away was that the timer instructions do not hold any values. They simply can read and write to the data tables.
Thank you so much. Keep uploading informative videos. You're a big help.
Thanks, let me know if you have any questions.
Very cool Tim, great explanation!
Thank you Nigel
Excellent video. Thank you Tim.
You are welcome Brian.
What a grat explanation! Thank you very much! That's the way to explain things. Keep it up!
Thanks, will do Adrian!
Just found this page. Awesome content Tim!!!
Glad you found us Trevor!
Great video, I didn't know about timer TT bit. You didn't explicitly mention how to handle an input that only goes true once (a momentary push button), to start the timer, and doesn't stay on. It wasn't immediately obvious to me that I had to add a branch below the momentary input to XIC the timer TT, which will only stop the timer when it's done counting.
Glad it helped!
Very Good video. Thank you so much.
You are welcome!
I have always wondered why they hide the TT bit. Thanks!
No one has ever been able to give me a straight answer as to why they hid it.
@@TimWilborne Use the TT bit all time especially dealing with push buttons. It's very useful.
Thank you so much sir for nice explanation
You are welcome.
In the event of a black out or brown out condition will this program force an operator to press a reset button to continue, thus providing low voltage protection?
Not unless you program it to and if you're looking for a true protection then you're starting to talk about safety integrity levels.
Dear Sir, thank you for your great videos. In this lesson you say that we can use timers to count for example how many times the Motor runs ON , but as you know we can only count as Max. for 9 hours, so how can we count the Motor run time if this Motor runs for Weeks or Months or longer than that ?
I have it on the list to make a video about this. Basically I would use a timer with a preset of 3600 and a timebase of 1 second which would equal an hour. Then each time the timer is done, I would add one to a number and reset the timer. Then the number is the hours and the timer ACC dived by 3600 is the fraction of an hour completed. Hope that helps and next time I'm making RsLogix 500 videos I'll cover this.
@@TimWilborne Yes, that helps and very good idea. I hope see your video which will cover this. Thanks.
Hi tim greetings
Can timers count floating numbers?
I mean, in the Preset of the timer, for example, place a value of 2.4s.
it's possible??.
Great question Stanley. The answer is both yes and no. Timers can only time whole numbers but you can change your time base to account for decimals. Time bases that are available are whole seconds, tenths of a second (0.1), and thousands of a second(0.001). So if you set your time base to 0.1 and put your preset at 24 then you will have a 2.4 second timer.
Tim excellent
very wise you answer thank you very much you are the best in what you do
@@stanleypolanco4887 Glad I could help Stanley!
Thanks!
You are welcome!
I plan to try it when I get a chance. Probably after the weekend. Thanks again Tim.
Thank you
You're welcome
Great videos Tim and Amber! I am having some trouble. I'm trying to get back into programming after about 25 years of not doing it and your videos have been very helpful. I'm able to communicate with the MicroLogix 1200, but when I try to download a different program to the PLC it gives me fault ( no response from processor at selected path/ node! Diagnostic Status failed: 0x4 ). Can you tell me what I'm doing wrong?
Hi Scott. Instead of selecting Download, go to Comms > System Comms
@@TimWilborne Hi Tim, thanks for replying with the info. I went into a video of yours ( the start, stop ) and tried to find comms. I'm sorry I don't quite understand what to do here.
@@scottwaynewilliams212 Top left, find "File", work your way to the right on the text menu bar.
@@TimWilborne I understand now. Sorry, but I thought you were telling me how to communicate with you better.
I will try that. Thanks again Tim!
@@scottwaynewilliams212 That should get you there Scott!
Hi Tim
I work as an electrician at a slab factory in Scotland and I am trying to add an external timer for our hydraulic press so the operator can adjust the press time without me having to go in through the plc. Do you have a video that would help with this? Or could you point me in the right direction?
Many thanks
I have some coming Stuart but for today, just google "Timing Relay" and you'll get a variety of options that will work well.
Thanks Tim
You are welcome Stuart.
It's a bit hard to understand having only a computer simulator to run rpograms, nevertheless very interesting, thanx!
Yes, I always say the simulator is great for helping you to decide whether you're interested in learning PLC programming but not substitution for having a PLC
Where I can get video where you get TOM connect in parallel reply name of video or link plz
I don't know what you mean by TOM connected in parallel.
@@TimWilborne t on I mean
I'm still not understanding your question. The video you're commenting on is about the TON Timer On Delay. Is that what you're looking for?
@@TimWilborne yes timer delay but how to connect them in one hung parallel
nizam windows
Can PLC control the application installed under Windows?
Micrologix 1000
I don't understand your question.
RTO or RTN Which one???
Depends on what you're trying to do? One is not even a timer instruction.
@@TimWilborne Lol, Which one is Not a timer instruction?
how did you stop it on exactly 800 haha.
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