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  1. Hello, I'm considering what is the scope of the Positive Transition Event in the program. I thought it was supposed to stay on for one pass to the whole - but maybe that's not correct? In this example I'm catching the 100ms frequency and I'm checking it in a function which I call twice with different parameters - but the event only stays on in the first call to the function: and in this case the TestFunc is only: (N is the "Out" parameter) Is this as it is supposed to be? Thanks, Bjarni
  2. Hello Everyone, New to this software. Many thanks in advance. Question 1, So we've been able to record the data with "Data Sampling". Can someone please tell me how I can control the start and stop of data sampling? Also how may I customized the name of the sampling file, such as in MATLAB people can use the format "date is %d time is %f, DD, TT " Just so the saved data log is more readable. Question 2, How may I save a separated file content just several variables, that each time I hit a button, such as when I hit "start", save the time, date, to a txt file so
  3. Hi, Is it possible to do safe remove of aUSB Stick/DOK from the ladder or a UI element? I'm saving a data row to SD, then the copying it to a DOK, all of which can be done from the ladder, using the status codes to avoid timing issues. I'd like to avoid the "DOK Unsafe Remove" warning that appears. I always get the same warning after using the safe remove button on a File Browser UI element, so this isn't a suitable workaround. Sandy
  4. Hi, I'm trying to build a log for my system using the Store DTI to File function. This runs after the struct containing the date is inserted into row 0 of a table, which should be appended immediately to the log file. The writes are sufficiently spaced (~30 minutes) that the SD write interval isn't an issue. I've found that when using option 2 "Only CSV" for the "Create CSV" input (F), the file is simply overwritten, and only ever contains 1 row. Option 1 "Create CSV File (All - udtf,csv,csv.zip)" does append correctly. In both cases "Append to File" (E) is set to 1 "Data will
  5. Hi there, I'm guessing that the FB that you're talking about is in Visilogic rather than Unilogic? I'm having big problems with this in unilogic. I'm trying to concatenate a bunch of strings and I just can't get anything to work reliably. Is this function synchronous or asynchronous? Any ideas why I'm having problems?
  6. What is the most efficient way to store date and time in an excel table so that it is easily view able in Excel? I converted it to a string, but the strings take up too much PLC memory. Excel can't natively interpret Unix time, so that won't work either. Is there something else Excel can interpret that I can store it as?
  7. Hello all, I am using IO remote analogue card URA0400T (16 Bit) and IFM pressure transmitter 4-20mA 0-10Bar. Attached you will find the linearisation but the output value is wrong. What am I doing wrong ?
  8. Dear All, I am doing as follow: import a CSV file (copied from USB stick in the "data folder") with a single row of 23 Strings (each String is 25 lenght); create a UDTF file from this CSV; upload the UDTF to a DTI; read the DTI row. each of these action is done in a specific ladder rung; each rung check if the previously action was perfomed without problem...then at the end my CSV is converted; the DTI il filled with right values but when I read the DTI row I don't have any error (exist status "0") but the struct variables is not filled (all single field is empty)...I tried to write
  9. Hello, I noticed that the Unilogic software doesn't provide counters like other software's do. I am having trouble getting out of a loop pulse timer. I am trying to get out after it loops 5 times through. Any ideas?
  10. Hi. Hope someone can help. I've got 2 analog input cards in my system. All configured the same. The one card my temp is stable but the 2nd card the reading fluctuates a lot. from 1 to 35 to 17 and so on. Connected pt100 connected to convertor to 4-20ma directly in panel to see is cable fault. Still the same. Any ideas please. Thanks.
  11. Hi Everyone I am a bit of a newb and using a US57/ -B10-TR22 PLC with the current version of unilogic The short version of my question is: when there is a power off/ on when the PLC reboots does it start the scan from the top of the ladder or does it continue from where it was when the power went off? Is there a way to make it default back to the top of the ladder? My Long explanation / issue is I have a bit that activates a compressor - even though the bit is supposed to default to 0 on startup and i have a initial cycle set bit to 0 condition if i turn t
  12. Hello, I have an Unistream panel and EX-RC1+ D16A3-RO16 + LC3 units hooked to it via CAN bus. I have to read position from an encoder (with A, B and Zero inputs) and wonder if someone here would give me an suggestion regarding hardware for the job? Should I just add an IO unit (and which one) or could I replace the D16A3 unit with another which also supports encoder readings? Thanks, Bjarni
  13. Why does the "Store string" function not work with the Russian language? How to make it work?
  14. So Im now getting my head around unistream, many thanks flex727 for the point to the examples. I have successfully got comms between uni stream and vision and have got most of my control under way and working. Took a while to get used to the new layout and working but im getting there. Question.... How do i send a set time to vision? In the vision plc there is a time entry function that communicates to other vision over modbus. I can't seem to read and write a set time both ways. uni-vis/vis-uni. Temperature settings are fine as i just use a numeric input.
  15. Why it is not possible to insert P and N contacts inside a function?
  16. I can find no information on the string function usage. This seems to be not included in the manual. I need to do string manipulation. Sifting thru all of the internet for answers is making me not happy again. Time is money. If someone out there has this information could you please post it. Thank you in advance.
  17. Hello, I'm just starting my first project with UniStream/UniLogic and I have the PLC hooked to a PC via Modbus, PLC as Slave. I haven't found a way to sync the clock in PLC with the PC clock. Is there a way to set the PLC clock via the Modbus ? Thanks, Bjarni
  18. Hello! I am tracking some values in my application thru MQTT and would like to trigger a publish event if for example a value changes for a fixed amount or percentage. What I am using right now is periodic transfer but would like to save some bandwidth if data isn't changing much. Also, I need some kind of general solution to implement it on 50 values. Let me give you an example: we are monitoring an outside temperature. The sensor is quite unstable and changes in tenths every few seconds. It's value table at 10am might look like this: 10:00:01 102 = 10,2 degrees C 10:00:02
  19. Dear, I'm trying to copy a file from a DOK to the SD; the status stay always at 1 and never change (and the file is not copied). The function is "called" by a HMI button that set a bit...in the same ladder rung this bit is reset...then is called just one time. If something in the UDFB was not set properly I should had a negative value...but this doesn't happens. What can be? thnaks
  20. Hello, I am a beginner and am having trouble completing this task. I am trying to turn outputs on from a push button for about 30 seconds, then off for 2 minutes, then on again for 30 seconds. Repeat 5 times. After the 5th time, I would like to increase the off to 4 hours. This happens until someone manually presses the reset button on the HMI. Any help would be appreciated. Thanks
  21. Hi all, It is possible to change screen on web server from ladder? I tried do it by action function but I can choose there only HMI screen. I need it to inform remote user about alarms. User often have web page minimilized on windows try and he want to be inform about alarms by web page icon blinking, maximalize web page or some alarm sound on his computer. How I can solve this issue?
  22. Not much to add to the title. When using a timer.out bit to trigger a digital alarm, UniStream is not detecting it. I had to set a bit with the positive transition of the timer, and then reset it after the alarm state has been activated.
  23. Hello, my PLC has been working for the last 3-4 weeks. One day I come in and it starts to give me this error. The firmware is up to date (unless there was an update within the last month or so). Any help would be appreciated.
  24. I decided to use Internal Control Bit Arrays 2 x(255) on this large project to keep the global tag list manageable. I need to reset all these bits with an HMI button. Is there a way to reset an entire bit array? I get compile errors when attempting to use the reset coil. I really really don't want to have to put reset coils in for 500+ bits Thanks in advance
  25. 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.
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