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Found 130 results

  1. Hi people! I'm developing a project with UniLogic v1.25.61 for the UniStream USP-104-B10. I need to sort an entire Data Table (2 columns, A and B), sorting just one column (A), has anyone ever try this? The other option is to have 2 arrays (A and B), sort one (A) of them and then I need to sort the other one (B) the same way I sorted the first one (A). I don't know if I'm being clear enough so here you have an example: Before sorting: A={1,4,2,3} B={Q,W,E,R} After sorting just column A or array A: A={1,2,3,4} B={Q,E,R,W} Thanks in advance! Cheers, Gonzalo
  2. In helping a customer integrate a UniStream into a SCADA system I have come across a curious gap in the available information. I can't see any declaration of the function codes that the external Modbus master must use to communicate with the UniStream as a slave. The Unitronics example and tutorials use a UniStream as the master as well as the slave, which doesn't highlight this issue. I have looked within UniLogic, tried exporting the Modbus registers as excel, looked at the UniLogic help file, watched the Unitronics YouTube video and searched the forum. None of these sources gave the necessary information So far I have gleaned that the following codes are supported on a UniStream modbus slave: Coils Read Coils (function code 1) Write Coils (function code 5) Write Multiple Coils (function code 15) Registers/Words Read Holding Registers (function code 3) Write Single Register (function code 6) Write Multiple Registers (function code 16) But what if the customer's master only supports Read Input Registers (function code 4)? I don't have a firm answer on how we could handle this. Can anyone provide a definitive list? I would like to be able to answer this question with confidence. A standard part of documenting a Modbus Slave is to specify which function codes it supports, so the master can be correctly programmed. Thanks, Simon
  3. i am create application with messages for audit traill actions the operation. I wold like select the message with index , show in left collun. But not found way for select message for write in table dti or external ( sql table). I need help for optimize application and not repeat many times same code. i hope developer team create one way for create selection more easy. regards,
  4. Hello All, Can someone help to build a simple program for switching multiple outputs with delay ? Condition is: Input ON, Output 1 ON then delay XX seconds Output 2 ON, and .... delay XX seconds Output X ON. Input OFF, Output 1 OFF then delay XX seconds Output 2 OFF, and .... delay XX seconds Output X OFF. thanks in advance.
  5. Is it possible to make the substring or remove string length variable? I need to read a string with changing amount o characters. I need to read from / to the next / for example.
  6. Hi All, I'm storing data in a Data Table. Once a day I write the data to a file using the "Store DTI to File" instruction. It all works well and a file is created. I'm then using Excel VBA to read the data in one line at a time. The issue I am having is that the CSV file has comma "," separating the lines. How do I get the Unitronics software to install a line break after each row from the data table?
  7. Hello, I'm a beginner in software development. How use the box String to Num ? What is the FACTOR ? Thank you.
  8. Hi, In my Unilogic programme, Scan time is between 6-9ms, with Ladder Time Max about 2.7ms. But sometimes, aperiodically, Scan time is 35-38ms, while Ladder time is the same. Never 15 or 20 or 25ms, always 35-38ms. I need Scan time to be less then 10ms. How to solve this?
  9. Hello, I am a new programmer in Unilogics. After I got to know Unilogics , I have to set up an TCP/IP connection. The PLC is the server. I already programmed a function for sending information to the Hercules ( on my laptop). Now I need to receive information back from my Hercules. I have tried a lot of options but it will not work. The Rx blocks count the right amount of byte's that is received. The problem lays ( I think) in the fact that OUT E from the Rx box doesn't go to 1. Also I dont get BOX E from de parse message box. If i made a scanned message for receiving it isn't standing there. I find it very strange that i find it so easily to send info but then it wont work to receive info. thank you for the help in advance NOTE: " BUFFER ONTVANGEN MEANS BUFFER RECEIVED" im dutch haha
  10. Hi, In my program PID auto tune is not functioning. Overshoot came across when I tried it. After that I entered values manually in the PID loop.In that also little bit of overshoot could observed. May I get some help from to solve the PID issue.
  11. I have a large Data Table (Indexed) that I need to rearrange the columns. According to the online tutorial that can be done, but it doesn't explain how. It also doesn't seem to be addressed in the Help file. None of the common sense ways seem to work. Anyone know how to do this in UniLogic?
  12. Dear Sir, Please help on following DTI usage. I am using EXCEL sheet as attached for showing volume of tank. We have 2 conditions. 1. NEGATIVE TRIM 2. POSITIVE TRIM. trim is calculated by our sensor. The height of the liquid is also calculated by pressure sensor. From the liquid height according to positive or negative trim, select the volume from the cell. This value want show in a numeric box. For example, I know my tank list is positive and sounding is 0.25 and trim of 1.5, as per excel sheet my volume will be 5.12 Metric cube. Want to pick this 5.12 value and show in numeric box. if in negative trim, at 0.25 depth and negative trim of 1 my volume will be -0.67 metric cube. From excel sheet how I can select using DTI I marked it red for ease of reading. Can you help on this please. I have limited access to internet. cannot search and study the examples. This will be great help for me. With regards Attachments area NO1TSWBP.xls
  13. Dear sir/Madam, I done small projects with UniStream. I got one large project. Can i have some help to carry out this project. I am not so professional oly a small scale programmer. I'm attaching one of screen shots of an existing project. we are planning to upgrade this with Unistream PLC. In the photo red color valves, when we touch on particular valve a pop up screen should come with showing two buttons OPEN CLOSE. like at right side upper corner of the screen. can we do this by designing single screen and when touch the valve the screen will pop for with that particular valve number. or we have to make pop screen for each valve. like this there are 3 screens with same number of valves. I did not buy the HMI UNIT and CPU to try. Please help.
  14. Hello all, this is the first time I am writing to this forum. We were using vision plcs and now is the first time we are using unistream. We have connected the cards through USP-TCP. For the analogue input we are using the card URA-0800O and we set the input 4-20mA. The sensor we are using is 4-20mA 0-150oC. We tried linearization but the output value is wrong. In X1 we entered the value 818 and X2=4092. in Y1 we entered the value 0 and Y2=1500 but the output value is 0 and does not change. When we change the Axis values (y1=818,y2=4092,x1=0,x2=1500) in linearization, shows an output value but is 10-15 degrees less than the actual temperature. Are we doing something wrong? Thanks
  15. Hi guys. I try use local integer variable in UDFB with inc block, but not work. I know not possible monitoring a value on line, but i connect in function out in the block and not change values outside . The inc function not work in blocks with local variables? Regards
  16. Hi! I'm programming an UniStream Modular USP-070-B08 + CPU USC-P-B10 with UniLogic v1.25.61. I want to create an array of INT16, which its length, will be set by the user through the HMI. Is it possible? Because when I create the array in Ladder, I can only set a constant value for the array's length. I want to try something similar with the number of rows for a table. Thanks in advance!
  17. I have used the UniStream in 2 applications and I am a fan. I would like to know if you can edit your ladder and do a download while the PLC is still running.
  18. I need to calculate the difference between the current tag value and its value during the previous scan. The tag value originates from a Formula using analogue data from a UIA-0402N Analog input and stores a Real value. Is there a easy way to do this without using a Data Table or other FB that uses the SD card memory?
  19. I would like to clear all the data in a certain struct. I thought I was able to do that using the Reset Numeric function. I entered the name of the struct in the function box tag and then erased the period. For some reason, however, the data is not being cleared in the struct. Am I wrong in how I set this up, or am I overlooking something?
  20. I have a DTI in which I want to search a column for a string with a specific prefix. The column contains strings of 25 characters each with a unique 3 letter prefix. How can I perform a search returning a match for a given prefix? In other words, I want to return the string with prefix "ABC". Thanks in advance!
  21. Dear All, I am having a strange issue...I try to explain, I am checking the serial communication between a master and a slave (modbus rtu...like a sniffer) and I am using the Unistream to catch the exchanged data...at the beginning, as first test, I record every 10 bytes and save the buffer in a DTI...and all has works fine...now I want to take the exact request/answer between master and slave....then the first record is checking the 8 bytes...the data will be, for example, 1-3-0-216-0-3-134-56 (the CRC is not calculated...I wrote only as example)...then I want check the position 5 in the buffer (3) to know how many bytes will be the answer...in this case will be (3 *2)+2 =11 bytes...I am using the function block buffer to tag to store the buffer[5] and do the calculation...I tried to save the specific buffer position to a single tag and all the buffer in an array...both UINT8 and UINT16 but...but this never works....in the position C of the function block is wrote that if the end tag has not enough space the function will not execute...but I don't think that is the problem...what cna be the cause? What I am wrong?
  22. HI everyone. I have a Unitronics PLC with HMI USP-104-B10 I have a Flow meter connected to one of the Analog input cards and it sends out a flow rate, I want to calculate the total flow in cubic meters and display it on the HMI, I also want another display with Weekly Flow ( so it uses the same logic and calculations of the total flow but should reset every time the operator pushes a reset button after he takes his readings). Both The Calculations are the Exact same logic the difference is they are assigned to different tags. But the readings are completely different and random.
  23. Hi, I'm using the PLC usp-070 and trying to use data table. I have an SD card in the PLC and: when I use the function "store DTI to file" I get error status '-31' when I use "load DTI from file" i get error status '-4' the SD card is FAT32. I'm new with UniLogic and every help will be appreciated. thanks, Moran
  24. I am working on a project that requires an operator to enter a field (on the HMI Screen) by scanning a bar code. I want to be able to confirm that the scanned field has a specific number of characters. The field is linked to a tag that is an ASCII string. It will be an alphanumeric string 25 characters long, and I want to confirm that the scan in fact inputs all 25 characters. Any thoughts on how to do that would be much appreciated!
  25. Dear all i have a problem in HMI it gives an error of stop mode plc how can i reset it or jump to run mode
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