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Found 3 results

  1. Hi All, I have recently started a project controlling a servo motor for re-rolling labels. I have some mild PLC experience using Siemens but I have never set one up from scratch myself. Never used Unistream either. At this point in time I'm just focusing on sending a HSO to the servo using the Pulse Output on the URD-02PU. I have searched around but as these modules are so new I am having troubling finding information. https://support.unitronics.com/index.php?/selfhelp/view-article/Remote-IO-Pulse That is really all I can find. I'm unsure how I am to utilize this module to set up step & direction control. My understanding is: - I need to allocate a Binary output from the Module to set Direction (High = Clockwise, Low = CCW) - Write a number to either the "Pulse Quantity Output" or "Frequency Output" to set the "steps" - Send that required number to the servo via one of the outputs. Is this basic summation correct? Hopefully you can help. Or even some form of detailed description for this module would be greatly appreciated. Let me know if you need more information. Thank you. Cheers, Jacob
  2. Community, I'm experimenting with a program where I need to convert a pulsed flow meter signal into GPM. No big deal, right?! Here's the catch: the turbine style flowmeter is calibrated at 1 pulse per gallon. The well flows right around 60 GPM 24/7. There is a self contained totalizer at the site now that is "jittery" in it's GPM indications. I already know all the ways I could count pulse or measure frequency and factor my way to GPM. With a range of 0 to 100 GPM at 1 pulse/gallon what is the best way? The shorter the sampling period the higher the multiplication factor and the poorer the instantaneous resolution becomes. A 1000mS sampling with about a pulse per second has a resolution of nearly plus/minus 60 GPM ? which is not so useful. Doubt that changing the flow meter to a unit with pulsed and 4 to 20 mA is in the cards. I have a feeling I have answered my own question already with the laws of physics. Any comments, ideas, or remarks are welcome. Sincerely, -HW
  3. Hello, first please accept my apology for my bad english. I`m using SB 13, which should do a pulse everytime SB 3 rises (every second). I`m increasing value by INC function block by positive transition contact of SB 13. Works well for like a minute and then it starts increasing around 50 values per second. It lasts for around 5 seconds and then it goes back to normal. When I`m watching online test and this situation happen, the ---[P]--- of SB 13 starts flashing a lot. Joining my VisiLogic project. (there are unconnected nets and timers, please, don`t give it attention) Thanks in advance for quick reply. Best regards, Martin Půta V280-2016_15_5 (1).vlp
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