Jump to content

pascal

Members
  • Posts

    40
  • Joined

  • Last visited

  • Days Won

    9

Everything posted by pascal

  1. Same question here.... I need to communicate with a Schneider Electric BMS module, via BACNET. With YABE (free bacnet explorer) I can see both bacnet devices, but how the hell can I read the schneider output into my unilogic plc and write some data to schneider via bacnet ?
  2. So I was missing something obvious......
  3. maybe I missed something obviously, but how can you put a 2 line text in a button, or even in a fixed text on the HMI ? In visilogic, this is not a problem..... but in unilogic I don't know how to do this
  4. jmech, So you connect a "TPC/IP to RS485 translator" to your ethernet port to communicate with a rs485 device. So you don't need to set the baud of your ethernet connection... I had also some troubles with modbus com..... sometimes you ask the content of 1 register, but the slave answers with a bunch of registers.... So unilogic expects a modbus receive of 4 bytes, but the slave answers with 42 bytes... how to test -> make a modbus master of your PLC and read 1 register into a buffer...... sometimes register 300001 is at adress 0.... or at adres 1.... MODBUS is always exiting to program 😂😂 I think modbus developers invented the enigma coding machine....
  5. I have following question : I'm using modbus communication to read some values of a powermeter. Instead of reading 40 variables - one by one - I read them in one modbus cyle, into a buffer... with the command buffer to struct, I can copy the values from the buffer to the struct. But when defining the structure, can I be 100% sure that the position of my variables in the structure is like I programmed the structure ? I give an example : I read 12 bytes via modbus ( 3 floating values) into buffer read[0..11] I have a struct with variables float1 - float 2 - float 3 then I use buffer to struct.... are the first 4 bytes going to float1, second 4 bytes to float 2 and last 4 bytes to float3 ? I tested this, yes they do......but is this always like this? I need to know if when recompiling the program, or copying this UDFB to another PLC program, will be always working with the "correct postioned" structure...
  6. My IT department installed me a local server on my BMS (Building Management System) where I installed the unilogic software. Drag and drop does not work 😥, but copy paste does 🤩
  7. I had the same problem, stopping the sampler, and in the next cycle of the program I start the sampler. This doesn't work. I have to let the PLC doing another run 1 cycle and then I can restart the sampler... maybe a status bit would be nice to say that file is being saved, so we can use this bit for restarting the sampler...
  8. I want to store a specific string (read fixed) to a "string tag" according a value. If value = 1, then string should be "OK" - value = 2, string is "NOT OK", value = 3, string is "FAULT...",.... OK, I know I can do this with the compare instructions, but I want to do this with the switch case instruction....😎 suggestions anybody ?
  9. I have a project with a USP-104-B10 and several URB remote I/O modules connected. When I add an IN or OUT module on the USP-104-B10 and then I export the IOtags to Excel, then the modules are not ordened anymore... the last added IO module is putted at the end of the excel file...even this is the first module of the project isn't it possible to export the IO/tags in order they are on the PLC ?
  10. I use Sick RFU610-10600 rfid reader, connected via TCP Sick provides a EDS file, so very easy to configure ! no programming needed..... just add a node in ethernet/ip scanner and that's it...
  11. Hi, I rewrote my program, so I divided the large rungs into more rungs. But still I have a question and problem. Is it possible that the PLC reads a bad value from the datatables while the data tables are updated with " remote access " ? Every cycle I read the data table, but the customer changed the values of the data table and suddenly he had wrong values ? I checked the program, but couldn't find any wrong programming.
  12. Hi, When I change the data table in the instruction "read row from data tables", the destination operands are dissappearing. This gives me a lot of work extra. We do not have this "problem" with te "read column....) maybe something for a next version of visilogic ?
  13. Ok, thanks first, I will replace the "bad" program with the "correct" one and test it. If there are still problems, I will send you a copy of the program so you can check where the problem can be. I'll keep you informed about my results.
  14. Ok, I think this will be the problem ( bad programming of me ! ) But 1 question about this issue : is the order of commands execution always the same, or can it change in time. The most of the time, I get "good" values, but suddenly I get a wrong one ! Or is the time needed for an read data table column and put the values into the MI's taking some time, so this is sometimes slower and I get "bad" result. this is because I want to explain my customer why the PLC sometimes gives the "wrong" values.
  15. I have the following problem : In net 1, I read a column of a data table in MI100 ... MI 109 in the same net (net 1) I search a certain value in the MI100...MI109, with a CALL subroutine that returns a returnvalue. Is this allowed, or should I search this value in another net ? Because sometimes (not always) I don't have the correct returnvalue ? program look likes this : read column and write to MI 100...MI 109 // search value into MI 1 // call subroutine for searching where MI 1 is in MI 100...MI 109 // put return value into MI 2 ( all this is place in one net ! ) or should it be like this ? net 1 : read column and write to MI 100...MI 109 net 2 :search value into MI 1 net 3 : call subroutine for searching where MI 1 is in MI 100...MI 109 net 4: put return value into MI 2 before I change my program, I want to know if this is the problem of bad readings !
  16. I've made a project where the user has the abbility of changing his "receipts" in the data tables. I have 10 different receipts (so 10 different data tables the user can modify), but when i am executing the receipt, I copy the values of the asked receipt into a new data table (called the working data table). The problem is that the user also can modify the "working data table" and this is not wanted. Is there a possibility to set or unset the viewing of certain data tables (customer uses the remote access software to change the receipts) is there a way to reorder the data tables ( now they appear in the order we programmed the data tables)
  17. When downloading a project to a V570, with the option to syncronize the time between PC and PLC the UniDownloader (ver 5.0.07) will fail to do ! first it will syncornise the time, but the PLC stops running and the only way to "run" the PLC is via the sofware visilogic. I'm not able to restart the PLC with the Debug screen. The only way the downloader works is to upgrade only the application (did not tried to download the bin,boot and OS) all software (on PC and PLC) are the latest version
  18. started this topic one year ago, but still no app to download ? I found something in the app store for Ipad customers : the software HMI draw from sweetwilliamsl.com -> price 0.99 $ of 0.89 € I bougth this, tested it and approved 100 % good. But you have still a lot af programming to do !
  19. I have a customer who wants to use excel to download and read the MI's from the PLC. This you can do with UNIDDE, but we can only read/write the memory of the PLC. Is there an easy way to read/write the data from the data table's via UNIDDE ?
  20. I'm very pleased that the idea of creating an "app" - (for Ios and Android) of "remote access" will be considered. I can not wait until they appear in the app store !
  21. now we need an win based PC to run remote operator of remote access. When You make this work on a android based of apple based (ipad?) system, then we have a very powerfull system, because we only need to program the PLC and not some difficult HTML pages ! An yes, I want to control the PLC from Tampa to Sofia. The amount of users ? I think 1 at a time is enough, because you are using the screens of the PLC (like you are in front of the PLC)
  22. This morning, while taking a coffee, I was considering next idea : shouldn't it be great to have the "remote access" or the "remote operator" software running on a smartphone or tablet PC ? Then we are done with all the problems of the enhanced webserver, where from time to time it stops running (only a cold reset -power OFF/ON can help). Then we are using the screens of the OPLC to control our project, instead of making some html pages. To access my OPLC without any problems, I now use "teamviewer" to access a PC who can execute the remote operator software ! and this works nice !
  23. normally this should work fine, I tried this the other way around ( first a V570, then V350) without any problems. did you put a SD card into the V570 ? the SD card is not the same of the V350 and V570
  24. Is it possible to backup the user application trough software ? - without resetting the PLC ? I forgot to do this when I was at my client's house and now I'm afraid when he has a power failure, the program will be lost. I can access his controller via the internet, but I don't want a reset of the controller. I know you can do this when you are in info mode, but info mode is not accesible via the vision software. thanks
  25. just take a look at gmx.com maybe this will be good ? haven't tested this yet
×
×
  • Create New...