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Showing content with the highest reputation since 07/23/2017 in all areas

  1. 2 points
    No, this feature does not exist, but you can put elements in a Custom Control, then if you use that custom control in a screen, then it act as one element when copying, pasting moving etc. Custom control has the ability to accept parameters (It can be used more than once but with different tags, just like regular controls).
  2. 1 point
    Use a timer, that will set a bit that is used in the Load Screen action
  3. 1 point
    So you guys are saying that the units were completely bricked? No way possible to get them back? It seems a bit astounding to me that a lower level recovery facility isn't available when 2 of our very experienced members have had such an easily done error. Something for the creators to look at? cheers, Aus
  4. 1 point
    Nice story here: Bimetec, a company specializing in agricultural solutions, used a Unitronics Vision1210 and a 4.3-inch Samba programmable logic controller for this retrofit project. Read about how they boosted speed and efficiency by clicking here.
  5. 1 point
    https://technet.microsoft.com/en-us/library/ee844140(v=ws.10).aspx http://www.winability.com/how-to-make-elevated-programs-recognize-network-drives/
  6. 1 point
    Sure you can, but timers only have a resolution of 10ms. Just multiply your MI by 100 and use "Store Timer/Counter Preset" for the TD timer you wish to use. Make the timer self-resetting (timer activated by inverted contact of the timer) then have a positive transition of the timer activate a toggle coil of the MB you wish to use for the pulse train. If this isn't clear, I'll post a screen capture of the logic - just let me know. Remember, you must use increments of 10ms. You cannot have a 12ms timer.
  7. 1 point
    Hi all, I thought I'd share a little trick I've had for many years...in case I get hit by a bus. Hate to see it wasted. Much of my stuff is machines that plug into normal General Purpose 10A outlets (Aus = 240V). As such, years ago I had a lot of trouble with DC motor drives pulling way too much current when they were powered up, and they would routinely trip the breaker on that circuit. A normal solution would be a different curve breaker, but in these locations this was not possible. Most Inrush limiting devices are designed to be on the load's PCB, but back then there was little around for me to use anyway. I had to come up with a bullet-proof but simple way of doing it. As usual the brain got the washing machine going and out came this idea at the end of the cycle. I ended up with 2 variations of the theme on the attached pdf. 1). The pdf version uses a relay and normal light globe. The globe reduces the inrush to minimal levels because initially it is running at it's "normal" conditions. But there is enough voltage still getting through to the load that it charges up it's capacitors with hardly any higher current at all and the globe's brilliance decreases as this happens. It's essentially working as a simple resistor. Once voltage at the load reaches the relay's trip threshold, the relay turns on and supplies full power until the main source is switched off. You vary the globe's wattage to find the ideal compromise time, in most instances I work on 0.5 to 1 second. You will be surprised how well it works if you do an experimental lashup. 2). In many cases I have multiple drives to power and I use the PLC to control the initial powerup. They all go through a master safety contactor when running directly, with a further individual relay/contactor downstream for each. In this case I initially run them sequentially through a link to a globe in the same manner. ie the globe "neutral" is on the downstream side of the master contactor but before the individual switching. The PLC runs them all through a sequential power up via the globe and then closes the main contactor once all the routines finish. Thus I have a single globe that glows brightly, dims, next drive turned on and globe brightens again, dims etc etc with all drives eventually being powered direct. Once it is all finished, I then do the motor control necessary. I know that most of the time this is not necessary. But I still encounter moments when this method has proven itself time and time again. The beauty is the inherent simplicity and also the ease of replacing the restrictive mechanism...the globe. Not that I have had to do it. I first implemented it over 20 years ago and on ALL devices it is still working on the same drives....and the same globe! Globes must, of course, be nasty "environmentally unfriendly" old fashioned filament types. Not modern, "full of mercury and electronics" flourescents, or "specific frequency hard on the eyes" LEDS, which are all sooooooo much better for the environment...ha! But that's another discussion along the lines of a Prius vs a Hummer! cheers, Aus INRUSH LIMITER.pdf
  8. 1 point
    Hi Mbb and Mdglopper, It seems that the UID-0808T you are using has an old boot. Because of this the O/S of this module needs to be downgraded it order for the module to work. BUT please note that the using the old UID-0808T, you cannot use the "scenarios" of this IO module. Please do as follows: On UniLogic 1.18.6 go to Download > OS Download > Download IO Files. Select the IOOS_UID-0808T_V2_5 When it's done just reboot the PLC.
  9. 1 point
    Did you try the +/- button under the ESC key? Joe T.
  10. 1 point
    I have a customer who wants to use excel to download and read the MI's from the PLC. This you can do with UNIDDE, but we can only read/write the memory of the PLC. Is there an easy way to read/write the data from the data table's via UNIDDE ?
  11. 1 point
    Hi Pascal, The answer to your question is yes. DataXport is another free software from Unitronics (avaliable from here ). You can use it to log and export data tables on a schedule basis. It resembles UniDDE in the means of defining the controller and connetion. You will find relevant information on the help file. For more information you can write directly to support@unitronics.com
  12. 1 point
    I'm using the V350-TU24 for PWM control of a powerful chopper. Since the controller uses RC-circuit, is not possible to get the output high frequency and sharp edges. I had to climb inside) and found the magic point. The result is a control on the chopper frequency of 8 kHz (via optocoupler..). But there is a downside - only 32 steps adjustment duty cycle. And by the way, HS input is also modified to measure frequencies up to 100 kHz.