Set the hour, minute, and second for the online countdown timer, and start it. Alternatively, you can set the date and time to count days, hours, minutes, and seconds till (or from) the event. The timer triggered alert will appear, and the pre-selected sound will be played at the set time.

I worked up a small example of how you could do this. At least the timer part. The sounding of an alarm should be fairly straight forward. For the timer I used a gateway timer script and two memory tags. An Int4 memory tag to keep track of the value and a boolean memory tag to keep track of the direction it the script should be counting. The script looks a little something like this


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Have your pace takt timer run by the PLC. You can use Ignition to monitor the accumulated timer value and set alarms and indicators accordingly. Also, this lets you put the buzzer external to Ignition, so that if something bad happens to your HMI, the buzzer still works. If you need to change your target, it can easily be changed from Ignition.

I'm trying to implement a set of routines that allow me to time between two points in execution. A function, start(), is called at the first point and another function, stop(), is called at the second point in execution. The double returned by stop() is supposed to compute the time measured (i.e. counted) since start() was called.

I always get 0 from stop(), and upon debugging it further I see that the timer value is zero. I've been experimenting with several uses of the timers and everytime I try to use Up Counting it doesn't work, so I'm missing something. For example I experimented with a timeout style timer and used up counting and set match register. It wasn't until I did load Set and down counted that it worked. But here I feel I really need to be able to count up. Any advise/suggestions?

When the timer is configured to count up, it starts from 0 when enabled, and counts up to the value in the load value register. As soon as it reaches the load value, it resets the timer value to 0, and triggers the interrupt. So, when you read the timer value, it is always 0. Also, I haven't confirmed this, but I suspect since the load value is 0, the timer never actually counts, since it reaches the load value immediately.

I would suggest configuring the timer in periodic mode, enabling it in the init function, allowing it to always run. Then, in the "start" function, simply read the value of the timer, saving it in to a global variable, and in the stop function, capture the new value and use the two values to compute the difference.

I think YOU might have pin pointed my problem. The Peripheral Lib guide doesn't state what registers the TimerLoadSet() and TimerLoadGet() operate on. I assumed it was the timer's counter. But, I don't see a "set counter" operation. I suspect the counters can only be cleared implicitly, i.e. on enable?

Update: Based on the insight Bobby provided regarding *LoadSet(), I stopped trying to set it to 0 in start(), as shown in my original snippet. Result is better. I'm reading the count but since I'm not resetting the counter on start() measured time just jumps by the interval I'm measuring.

Your code is almost correct. When the timer is configured as a one-shot timer in count up mode, the timer value starts at 0, and counts up till it matches the value in the load register. When this timeout event occurs, the timer value is reset to 0, and the timeout event interrupt is triggered (if enabled). What is happening with your setup is that the timeout occurs immediately (since the timer value starts at 0, and the load register is also 0). So the timer value always reads 0.

Two things need to be modified in your code. First, in the start() function, change the TimerLoadSet value from 0 to 0xFFFFFFFF. This will allow the timer to count up to its maxium value before resetting to 0.

Second, the timer value needs to be reset to 0. Normally, in one-shot mode, the timer is allowed to run until it reaches the event and triggers the interrupt. Reaching the timeout event will automatically reset the timer value to 0. However, in this case, the timer will not reach the event (unless timed process exceeds 0xFFFFFFFF system clock cycles). Clearing the timer enable bit (by calling the TimerDisable() function also does NOT clear the timer. There are two Timer value registers. One of these registers is a read-only register (GPTMTAR), and is the value that is returned by the TimerValueGet() API. The second register is a read-write register (GPTMTAV), and is not exposed in the Timer API (since writing this register is not a typical use-case for a one-shot timer). When the TAV register is written, the TAR register is updated on the next clock cycle.

First, if you are suggesting I should read the counter first then I would agree and will do that eventually assuming no bad side effects. This code was intended to be used to explore my understanding and it did the job in terms of helping me realize that I was making bad assumptions or was misinformed. Once I learn what I need to know I will implement more efficient and robust routines for start()/stop().

I wish the peripheral api worked this way or was this clear but I don't think what you suggest is correct. Please offer a reference that supports this or offer a snippet you have tested and works in this manner. the only missing piece of info I need is how to reliably clear the counter.

Past projects included a LCR meter and I vaguely remember how the timing was measured. I do remember that if a timer was stopped in certain modes that when you started it up again it was reset to zero and that is how I measured the difference in time. Read the value, stop timer, start timer then subtract, or something along those lines. The subtraction was done in the loop.

I went through the other post. It seems what you need to do is use the timer in Input Time Capture Mode rather than periodic Mode. This way the Edge Capture will be logged by the timer which the CPU can then read in the ISR. The Counter will always keep on running and you would need to subtract the new count from the previous count value to get the time difference between two edges.

What you would need to be particularly careful about is that at rollover of the counter the current value will be less than the previous value (assuming it is count up time capture) and do the arithemetic of

I was hoping someone could help me implement a timer inside my for loop. The for loop executes the same number of times as the size of an array given by the user. I need to have a countdown timer that takes in the number of seconds calculated from another subVI I have. I have a picture attached, hopefully it helps

I built this rather nice thing (with the help of @Darren_Murphy) which is an actual countdown. And the nice colors are thanks to CSS wizardry from @Lucas_Pires.

Screenshot 2021-04-23 at 18.41.388241670 80.2 KB Screenshot 2021-04-23 at 18.42.388341690 83 KB Screenshot 2021-04-23 at 18.43.458321682 83.7 KB

Anticipation is contagious! If you're excited (or nervous) about an upcoming event, odds are, you're not the only one. Why not use our simple but powerful countdown generator to create a countdown clock, displaying the days, hours, minutes and seconds until the date of the event. You can share your newly created countdown, so it becomes a focal point for everyone involved.

We've seen countdown timers used to generate buzz and anticipation around a party or vacation. Teams use them to stay on track and focussed, by ensuring team members have a sense of the time remaining until a critical milestone date. Event promoters and online marketers have reported significant boosts in conversion rates by using an online contdown timer to create urgency and drive action. Even NASA, uses a giant outdoor countdown clock to build anticipation and focus.

Countdowns are "sharing magnets"! A countdown to a date that means something to you and your network of friends or customers is something you want to share, right? Well guess what, so do your friends, and their friends.

We run a relatively small website but we see 200-500 social shares per day of countdowns that are displayed on our website. That does not including the thousands of our countdowns that have been shared around and embedded on other websites.

Recently a Seattle household made the news and went "viral" on Instagram with a simple display of the number of days remaining in Trump's current presidency term. Tom Petty fans were intruiged by a countdown that appeared on the official Tom Petty website in early 2018. The hugely popular video game, Fortnite received a huge amount of attention and press coverage after introducing mysterious, in-game counters, leaving fans fascinated as to what they were counting down to.Increase conversion rates using the magic of urgencyAs an online marketer or e-commerce company what's your worst enemy? For many it's customer procrastination. They want what you offer but they can always buy it later. Maybe they'll wait until they have more information, more money or more time. There are a million reasons to "do it later".

Dominant and successful online businesses such as Ebay, Amazon and Booking.com make extensive use of urgency as a means to drive action and increase conversions. You can barely visit a successful online store, or ticketing/booking website without being exposed to urgency or scarcity-based marketing tactics. "Less than 5 tickets left at this price", "Hurry, only 3 days until sale ends" or "Order by 5pm to receive next day shipping". These companies are ruthlessly analytical and their tactics are driven by data and experimentation. They use these tactics because they have proven to be effective. Countdown timers are a crucial tool in your urgency-marketing toolbox.Busy? It won't take a moment with our simple but powerful countdown maker!I made this quick video to show how simple it is to create a countdown and embed in it a blog or website. 2351a5e196

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