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Found 58 results

  1. Hi, I was a very basic ladder logic question. At the moment I can only force on outputs on from the PLC . My latches do not seem to be working correctly. When I activate the start pushbutton when in online mode the green light output is not activated. I know the output works when forced the output to a 1 the green light turns on. Sorry total new to PLC programming and just trying to get to a handle of it. Any help at all would be great. Thanks,
  2. I have outgrown the Jazz2 and wanting to upgrade to a Vision 130. The Jazz2 Ladder program has become fairly complex over years of development and upgrades. I have only moderate programming skill. Can the Jazz2 Ladder program be easily converted to run on the Vision 130? I realize the the HMI screens would all have to be created for the Vision but could the core ladder program just be copied and pasted? Are the System bits of the Jazz2 compatible with the Vision series or would they need to be cross referenced and changed? Thanks in advance, Rob
  3. korenje

    Button color via ladder

    Hi, I am new to this. Is it possible to change button color via ladder? Or after pressing it to change color? (for example I want ON/OFF button to change text and color... or maybe just color to indicate it's on or off) Also is it possible to change attributes at all via ladder? I know there is a way to hide a button and show another one of differnet color, but that's not what I want...
  4. Hello I am fairly new in UniStream and still can't find my footing. What I want to do is to store file first into CSV on SD, then to UDTF and later to read the UDTF file on a Data Table. But, when i try to convert the CSV into UDTF I keep getting "-4" as status. I tried this function on the example for Data Table, with me first making a csv file with "Store DTI to File", next trying to convert the made file into UDTF, but the end status is "-4". I have read the CSV file on the computer, and it has what the original UDTF table has, so that should not be the problem. Is there something I am doing wrongly? It would be great if someone could advise me on this. Also, after rereading many times the help file, I have this question: why can't one write '0' for "Parameter E"? I agree, that if one converts the csv from a created file with "Store DTI to File", one should for sure delete the first column, so that the table could read the new UDTF. But what about if one makes a CSV file like the one in the "Log to File" example in the "UserLogs" folder? I have attached the added rungs on the "Indexed Data Table" example I made. I am using USP-156-B10. On the example HMI, I have added 2 buttons: 1st for Storing as CSV, 2nd for converting CSV into UDTF.
  5. mitachky

    Ladder Logic Separation

    Hi, I was just wondering is there any way to separate my code like an "if else" statement in C. For example. If a condition is met, I would like to run only a selection of 10 lines of code and if the same condition is not met, I want to run a different 10 lines of code. Thanks in advance!
  6. What the main goal is: To download a CSV file from an external source and then transfer that data into an array which will be used throughout the program. I assumed my first step was to convert a CSV file to a udtf file and then use the function "Copy column to array". However, when I try and use the CSV to UDTF my status bar always shows "-1", I have a micro SD card in the slot and a USB in another slot with the required CSV file. I also tried just putting the file onto the micro sd card but that also didn't seem to work... Am I using the function properly? Any advice would be helpful as this is my first time using Unitronics Thank you
  7. Hi everyone! Is there any way to set the PLC to RUN/STOP mode via ladder code? I want to have a button (it could be a physical one using one input) that once you press it, the PLC goes to STOP mode (every output turns off), and if you press it again the PLC goes to RUN mode and keeps on working like it was before stopping it. Thanks in advance, Gonzalo
  8. Hello all, I just recently began my job programming PLCs for a custom welding manufacturer, so there will be many different types of programs to brainstorm and create. I am VERY new to programming itself let alone Visilogic and PLCs in general, no past experience aside from a few linux classes before coming into this job(unrelated just my only programming experience prior). That being said, I'm learning ladder logic and Visilogic from the ground up and was hoping a few of you gurus could point me in the right direction to make my learning process a bit smoother than it'd be with just google and I. To familiarize myself and experiment with the program I am using a Unitronics v350-35-ta24(B) with the 4.3 O/S. Attached to my PLC are a few digital inputs and outputs as well as an analog input and output. I have watched all the webinars on the website 5 times through, even the ones I don't understand. It seems there is a void in tutorials between the basic introductory buttons/timers videos and the complicated vectors, strings, etc. I have somebody nearby to tell me how to do what I want, but the resources to teach myself and learn in my own way seem to be lacking somewhat unless I am missing the right videos somewhere on the internet, though I have searched far and wide, to infinity and beyond, etc. At this point I can do the basics as far as buttons, jumps, timers are concerned, my only confusion with contacts at this point is how to incorporate inverted contacts/coils smoothly which I feel will come as I design my programs and find my pace. My purpose of this post was to collect as much research material as possible that I may not know of yet, any relevant videos or forums/posts/documents about ladder logic, programming, or specific Visilogic that would help me better understand the language I am attempting to teach myself. The software is very easy to understand and work with, as well as the videos/forums that I have found so far; and you all do a great job at responding to questions on here. If anything comes to mind that might help a toddler in the Visilogic world mature a little bit it would be greatly appreciated. At this point I am really trying to master using contacts in sequence to perform AND statements, using them "stacked"(for lack of better term) as OR statements, and trying to master my motor and PID instincts. I know this is a vague request and nothing exactly specific, but any examples of simple old code you may have from when you were learning or from simple programs you had to do, websites you refer to in order to refresh your memory or thought process, or ANYTHING informational about basic Visilogic and/or programming would be greatly appreciated. Hope you all have a great weekend, Derek Godown
  9. Good morning, When creating an FTP client in UniStream, and activating the sending from the ladder program I get a response status "-6", general error. The parameters for the FTP server are correct (User, Password etc.). By testing with FileZilla, the FTP server is reachable. Can someone help me? Thank you.
  10. Salem

    List of Text Variable

    Hello, I'm programming a table and I would like to have like a drop down menu containing food which, when the type is selected like " bananas" it is wrote in the table. It's like a predefined menu containing predefined types . I'm using UniLogic so is it possible ? ( an other question : is it possible to store a table with a name and then "increment" its name when storing the following table ( Data_Table_01 then Data_Table_02 ... ) Thanks
  11. Hello, I am having trouble understanding how the "Set Coil" and "Reset Coil" work. My understanding is that the Set coil, once energized, stay energised no mater is the RLO goes low. Is that correct? My code seems to switch off the set coil when the RLO goes low. Any ideas on where I am going wrong? Thanks, Adam
  12. Hi, I have a PID function block with an embedded PWM function which should turn a heater on and off with a duty cycle. However it is always set on (1). When I monitor the PID UDFB the output from the PWM is 0 but the main ladder has it as a 1. If i drill down further in the PWM UDFB then that is also 0. I don't understand what is happening. Any help would be great.
  13. Hi Folks, Is there any way to trigger a screenshot within the ladder? I think it would be a good feature to to have a screenshot that is triggered in the event of an alarm or other event. In this way we can put a lot of data on a hidden screen that would be captured to help in diagnosis of a fault. Regards, Denis
  14. Why is it, when I execute this instruction with parameter D set to 0, that I get an error code -31, Number of lines in file is 0., and no file is created? According to the help file, setting this to 0, should write entire data table. I'm using ver. 1.21.51
  15. How can I scroll through the Ladder UI (left and right) ? When I'm working on a small window (not full screen), I can only scroll up and down.
  16. Hi, I have a project (HMI USP-070-B10) with several users and groups. Using 3 access levels into the screen controls. I have a client who would like to have full access without login every time when power on the HMI. Is it possible to make something like auto login or to make default user with full access? Thank you in advance, Ognyan Obretenov
  17. HERMES SILVA

    Long compiling Ladder time

    Hi, The compiling Ladder step (when I download a program or when I connect "Online") take between 10 to 30 min . Is that normal or there is a problem with the software?
  18. Hi, I'm using UniStream with UniLogic (19.2). I'm unsure on how to use the "SQL Query" function block. the "SQL Query" has 3 fields: Query - Input, SQL query to execute. Parameters - Input, query parameter Outputs - Output , query output When I write the next query: Insert into Agua (Tiempo) Values (T_Agua) How does the PLC knows the direction of the database? What do I put in the Parameters and Outputs fields? Is there any file or webinar that I can check regarding this topic?
  19. I've tried to find a way to load a HMI screen via ladder within UniStream (which I found to be a very useful function within VisiLogic), but so far without success. Is there a way to get things done like: if a condition turns on screen n° xxx will be opened? Thanks for your feedback. Olaf
  20. Hi, What I want to do set and on and off time and date (which are on different dates) but can only get it to work with the time, not the date. I can get it to work using the "From Hour" and "To Hour" tags but I cant get it to work with the "Month" or "Day of the "Month" tags. I'm not sure of the format, I have been trying to write to them from a RTC Date variable using the array functions and a Date input from the HMI which seems to be working but the "Schedule" function doesn't seem to use the information. I have "2017" written to the "From Year" and "To Year". Any help would be great. Adam
  21. Is there any way to remove "Add new subroutine" button? I often click on it when I want to add a new net.
  22. Hi all! I would like to place a local timer in a UDFB, but this option is not available (The timer save key is disable when it is set to local) I guess there is a reason why local timer is not possible... The option I know is to define the timer as a Function-In , but then i have to connect a different global timer on each of the UDFB instances, and in case there are many of them we miss the concept of UDFB somehow. So I was trying another option to count seconds on a Local Counter (Inc function to Local INT16 Tag) . The counter pulse come from a Function-In Bit (One scan every 1 second). The problem with is the counter is not increasing if the tag is local, and it dose very well if the tag is global. This I can see with the latest Unilogic version that support monitoring UDFB online, very helpful! Any help regarding timing and counting within UDFB local tags is welcome. Ofer
  23. Is it possible on initiate a screenshot through ladder logic or is only possible through UniApps?
  24. Dear Community, Is it possible to have a bit trigger a message box? I have some ladder logic that determines if high and low user definable setpoints are equal to each other or inverse to each other. undesirable setpoint conditions make bit named SP> and SP= go true. Right now I have and indexed HMI text element that shows: legal entries, sp = illegal, sp> illegal, both illegal. I don't really want to trigger an alarm (though i could). The message box would be a nice way to signal operator of an illegal entry. I can't use legal entry ranges on numeric elements because legality is conditional to other setpoints. Thanks -dB
  25. How to convert a number to string ?
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