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chand345

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  1. It ended up being because it didn't like the "/" in the date. Makes complete sense, it worked when I used the format that had "-"s instead. However, I would have thought the error code would have been something much more straightforward, like if there was a number for an invalid character or something. Instead it stayed on 1 for a full cycle then turned to -35. Also, the help link (the little question mark in the tool box next to Store DTI to File) doesn't work, I had to click on the load DTI button then navigate in the help window to Store DTI, thought I'd mention it in case the bug hasn't been noticed yet. Thanks
  2. Hey, Each day we want to start writing data to a new file. Our file name string is updating fine using the rtc to ascii UDFB, but our store DTI to File status turns 1 when the filename is updated with the new date. Then after another full "day" it becomes -35. However if we never change the filename the data recording continues to work fine. I apologize if this is already explained in another forum but I wasn't able to find one. Thanks for any help your willing to give.
  3. Hey, We've run into an issue we haven't been able to solve for a day or so. When we restart the PLC it loads up fine with the code that is already on there. We can even go online from unilogic and view the values. However, when we try to download code from unilogic onto the plc the modules all get stuck on blinking green lights. Restart the PLC and everything works as normal, just for some reason we cant update the code on there. We thought that maybe we had messed up the hardware config so we opened a previous version of our project and that didn't work either. Also since we were able to go online, the code we have open is matching what is on the PLC. We noticed the day this happened our trial ran out, so we activated it with a key. We don't know if that was part of the reason or just a coincidence, but I do believe it is activated now and the problem has not been fixed. Any help would be appreciated since we can't really progress when we can't update the code. Update (Friday at 07:22 PM) It downloads but we have to restart it for it to register. if we dont restart its stuck in initialization. Thank you!
  4. Not sure what went wrong but I just tried save as and named it something new. Works perfectly now. Thanks.
  5. Thanks! I wasn't sure what the UDFB stuff was so I was confused. But I looked further this time and realized we could download sample projects. I'm trying to open the sample project but it says I can't have multiple sessions open. So I went to save my current project so I could close it but wasn't allowed to, it said Solution Save failed while trying to reconstruct solution file? Do you happen to know why I can't save? I've saved the same project before with no issues.
  6. Hey, What is the best way to get a column to show the Date and Time information? Right now I have a separate column for each feature like month, day, year, hour, min, second but that's definitely too bulky. I can't seem to find how to create a single string of the date and time information, what would be the best way to solve this? Thanks.
  7. Hey, We fixed the issue by just changing the name of the file so it created a completely fresh one, maybe since we were changing the number of columns in the data table as we were building and testing the program the csv file didn't like it no matter whether it was set to overriding or appending. I guess we will just create a fresh file for each time we decide to add a sensor value as an extra column. Thanks.
  8. Hello, We are able to log sensor data to the data table, we record it once every 5 seconds. However, after 10 recordings we are trying to write the 10 lines to a csv file. (Ideally appending it) Firstly, appending just doesn't work (when we put the 1), the file doesn't update at all. When we put 0 to override, the values go in but only one and a half rows. Any ideas? Thanks!
  9. We found a 16GB card and it worked! Thanks for helping, not sure why we were using a 128GB it's just what we were given to use.
  10. What capacity should we use that you think is optimal?
  11. Hey, We have a 128 GB SD card that we are trying to get working with our PLC HMI panel. We want to save csv files of data to the SD card, but the PLC is not recognizing the card. We tried formatting the card using the SD Card Suite but that also didn't fix the problem. Are there any other steps we are missing to get the PLC to recognize the card? Thanks.
  12. Hi everyone, We were given a lot of calculations to perform based off of the input values from our sensors. These calculations include square roots, arc tans, etc. as well as decimal constants such as 0.3874638 for example. We've tried to scale all our numbers so we can work with everything in integers but the function on the screen is getting very large and complicated. Performing these calculations in coding languages like python would be very straightforward. I'm wondering if there is a simpler way in unilogic to perform these large calculations or any tips to keep our screen from becoming so full that it will be impossible to debug errors. Thanks!
  13. Thanks everyone, I've got it to work using your advice. I didn't know about the General options.
  14. Can someone show me an example of code that causes the plc to go into sleep after 30 seconds and Kinda go into a idle screen. Only stuff I see examples on is in visilogic but can someone help me out and do it in unilogic? I'm sure it is simple but I am very new to this.
  15. Do you know of any CT's that can read alternating current and maybe somehow outputs a constant rms value? thanks.
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