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UniStream & UniLogic Beta
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Everything posted by Damian

  1. Since you are continuing to use the old software, are you also downgrading the OS as well?
  2. Normally, to tie a PID output to a single physical digital output you will send it through a PWM block. You will want the cycle time to be long if you want to slow down the switching. Your proces value should go directly into the PID block.
  3. In what way is this an issue? It is possible that this bit is only tested when the PLC is initially powered on.
  4. Hi Cara, For a trip down memory lane. Saragani was the one that figured it out. http://www.unitronics.com/forum/topic.asp?TOPIC_ID=2529&SearchTerms=silver
  5. I learned my lesson a long time ago with Visilogic and windows settings. The entire first year I used it (under XP), there were many things on the screen that I wasn't seeing that I wasn't even aware that I wasn't seeing. I remember one day I was frustrated because I wanted to know where my pixel location was on the HMI screen and I complained that they needed to add this feature. I was then informed that in fact that feature was already there. Where?!? Well after some investigation and monkeying around it was found that the "Silver" theme I had chosen didn't jive well with Visilogic and literally caused many things not to display (including the little pixel location box). ARGHHHHHHHHHHHHHHHHHH!! That is another thing they need to be wary of on NG is try to make sure they program things in such a fashion that the windows setting and themes don't interfere with the experience.
  6. Is it even possible for a Visilogic project file to be that large? The largest I have ever had was barely over 1 meg and that was a pretty large program. Is it packed full of graphics?
  7. Unfortunately no, there are no UDFBs. It is possible to achieve similar effects by clever use of data tables , indirect addressing, and subroutines.
  8. Wish I had an anwer for you, but I had suffered with the same problem http://forum.unitronics.com/index.php?/topic/758-visilogic-ide-slow-to-operate/page__hl__slow Never was able to figure it out. I run it in VMware now. There seems to be some issue either with the 64bit, or the quad core.
  9. When is the timer supposed to reset normally? As Joe mentioned, if you are using conditional subroutines the PLC will leave all of the operands in the last state they were in. Unless you are concerned about scan time it is normal to allow subroutines to scan unconditionally.
  10. Take a look at this thread http://forum.unitronics.com/index.php?/topic/948-pid-suggestion/page__hl__pid and scroll down to post #4 by Emil. Unless i misunderstand, this is what you are looking for.
  11. Are you using an A1, A2, or RC1? Input 4 is the HSC input, input 5 is the Reset for the HSC. When you configured the input in hardware, did you select just "High Speed Counter" or "High Speed Counter with Reset"?
  12. I sealed the timer in with a one-shot off the comparator instead. You'' have to explain your application more for us to know what you really need.
  13. Hi Russ, Some comments, and only meant to be taken constructively. Never use Set and Reset coils on physical outputs. In fact I recommend avoiding them when possible in most other cases as well. Especially in the beggining when you are learning. It makes for very messy and fragile programs. You set an ouptut based on an equal comparator. This means that the value has to be EXACTLY equal to your compared value at the the time it scan this. Generally I would expect to see a <=, >=, or a LIM. Please describe in real world terms what you are trying to achieve so that we know you are taking the right approach. The way you have written this, even when the timer completes, if the comparator remains equal you will immediately set the Output again before the timer has a chance to reset. Timers can be reset using and --®-- of that timer number. I don't prefer this method myself, but it is an option. I will post you an example of a simple self resetting timer that used "sealed in" type logic, as opposed to "latch logic"
  14. This also came up in the old Forum. http://www.unitronics.com/forum/topic.asp?TOPIC_ID=2691&SearchTerms=mitsubishi Would be nice if the SD was acessible on a sealed port from the front. Maybe someday soon we will have SD cards that can be can transfer the contents with a contactless reader.
  15. Ron, Just so that I understand correcly. Is your 0 to 5 volt signal digitial? And you were going to read it with an analog input because of the logic level? But instead you have 0 or 4 to 20mA so you are still trying to read it with the analog input with a direct connection?
  16. You can mount more than 1 com port on the device. If setup properly, it should be as simple as pushing a button on the display to "send". If you wanted to go with GSM, you could even automate it entirely and take the people completely out of the equation.
  17. Cara left out all the whining, complaining , and groveling I did. I originally simply asked that R&D check into why the connection times were taking so long and see if it was just a matter of some time delays being set too conservatively. I was given the impression that it ended up being more time consuming than was originally anticipated. I never expected the development of new FBs. Even prior to that though, I never had any issues with having all sockets connected simultaneously. I originally developed my messaging routine back in version 7. Greater than 80% of my application involve ethernet. My problem was more so that once you had more than 4 nodes, 1 or more sockets had to be shared. Then my sampling rate on the shared socket would go from a blazing fast read & write cycle of 12.5ms to an abysmal 150ms per device on the shared socket. The fast Connect block allowed me to open, read, write, close, and then connect to the next device in less than 30ms per device. Still not blazing fast, but it did make certain applications more feasible that I would have otherwise has to use a high end controller for. I am curious as to why you had so much difficulty. I suspect you didn't have something quite right in the config.
  18. Adam, my question is, what is normally used to read this signal? Certainly they must already have a means of interfacing this thing in a more conventional manner. Do you have a manual for it, or part # you can post so we understand better what this "synchronization relay" really is?
  19. Pretty pricey, but definitely looks like a nice unit.
  20. This is a bit bulkier, but you can plug directly into 115/230vac and is probably more industrial. http://www.ebay.com/itm/Serial-RS232-WiFi-converter-module-rs-232-wi-fi-/230669354669
  21. If you didn't want to deal with the battery, you could just pull them and wire DC direct to the batter contacts. Take a look at these. http://serialio.com/products/mobile/wifi/WiSnapAAA.php
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