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  1. Yesterday
  2. ORSO2001

    Modbus TCP...know forwarded data

    hi dierkens, thanks again for your answer...now I have 5 minute of "relax" to try to explain better what I have. to be clear ...when the phisical installation was started my PLC was ready, program done, test field simulation etc, to be connected with the master...obviously I wrote a data exchange document with all explanation...also a step by step example... was who had to program the master side that was not ready...and develloped the program at customer site! at the time I have connect the PLC with the PC where I created an easy program in C# to test...to show at the end customer that all work fine...and it was. after a few the second supplier told me that they were having problem because they never used Modbus protocol (but was the agreement from the beginning!?)...I explained again what they had to do...after a few they told me "now is ok"....great I thoug...but now they come back telling me that sometimes the command is not catch...in my PLC I have a "debug page" where I can see the amount of the "success" and "failed" about the TCP side...the fail are always "0" and the "success" increased every time. in their PLC they don't manage the exception or the data send error or don't check "my" registers about alarms or wrongs commands....I know because the customer user don't found these when the system seems not working...and they (second supplier) are not telling me how they are creating the data string that are sending... yes I can use something like a "sniffer" but I was thinking if the buffer of the data entry was available!?
  3. Hold Ctrl+Shift while you double-click the Visilogic icon. This will reset the window settings to factory default. Joe T.
  4. You need to assign numbers to the fields and embed that number in the barcode for sorting. Joe T.
  5. Ausman

    COM ports..

    More information needed in the form of screenshots of setup, program etc. You are essentially telling us "My car won't start!" cheers, Aus
  6. 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?
  7. I am working on a project where I would like the operator to scan a barcode to input data into several fields. If I enable the USB for HID Device I can get the barcode to scan into a field, but only when I first touch that field to open the on-screen keyboard (and oddly enough I have to press a key on the keyboard before the scanner will fill in the field). I am wanting the operator to be able to initiate these inputs without touching the screen first. I have logic written using the COM Rx function, followed by Copy Buffer to Tag. When online, I can see the scanned data in the buffer field, but no data is filling in the desired field. I'm not sure if I need to somehow key focus onto the field I want. Also, after the first scan I would like to be able to automatically focus on the next field where the buffer will be copied to. Any help would be greatly appreciated!
  8. dierkens

    Modbus TCP...know forwarded data

    You should use something like a MODSCAN to test the reading/writing of registers/coils on both ends. Although you indicate that your PLC works as a slave, you must mean that they are sending the MODBUS register information to your PLC. You can use WIRESHARK to get down to the packet level of information; but that level of detail typically isn't needed. Can you ping the MASTER device? Can the SLAVE ping you? Have you checked the OFFSET to make sure that both devices are using the same array start [Zero (0) based versus One (1) based register assignments]. Start with something easy like coils or a lower register. Just use some basic MODBUS troubleshooting techniques.
  9. ORSO2001

    Modbus TCP...know forwarded data

    hi dierkens thanks for answer....maybe my explanation was not clear...my PLC works as a slave...i create some registers (read, write) for a master (that is not mine)...who has created the master program is saying me that the comunications is not working...but if i use a program test to check my registers all works fine...i need to know what they are passing me.
  10. eprudnikov

    COM ports..

    Hello! I have a problem with COM-ports on UniStream. After simplified configuration MODBUS on RS232 function COM-ports RS-232 modules UAC-02RS2 not activated. What is the problem?
  11. dierkens

    Modbus TCP...know forwarded data

    Not sure why you want to ( error checking, byte manipulation, etc)? Read this and see if it answers any of your questions. https://www.rtaautomation.com/technologies/modbus-tcpip/
  12. Hi All, I am using the Unistream PLC as a slave connected by Modbus TCP...exist a way to know/check the forwarded data, by the Master, byte to byte? thanks
  13. Hi Mat, my understanding of what you are saying is that you think the dialog locations are kept as part of a .vlp? You were working on the program on a multi-monitor and now you are on a different computer (laptop) some things are seemingly placed incorrectly indicating that locations are saved within the file? I don't recall this happening in my instances at all, but I cannot play with this for at least another few days, others may be able to check this soon. I recall that sometimes I have instances where I have to swap monitors onto the other connection for some things to work properly....it often makes no sense but it works. From memory this has been where the MB has a standard fitment of a 1 x vga and 1 x dvi port. cheers, Aus
  14. Was using Visilogic in a multi monitor environment where I had the main program on the 2nd monitor. When opening property dialogs they usually appear on the 1st monitor, even after dragging to the 2nd monitor they still open on the 1st monitor next time. This is an annoyance. The bigger problem is that now I am back on a single monitor (my laptop), when I open a property dialog it seems to open off screen. Nothing I do seems to bring it back to the main monitor. Any suggestions/help would be appreciated.
  15. Last week
  16. You can embed whatever you want in the vector specified by the Indirect email up to 800 characters (400 contiguous MIs). What exactly do you mean by a "strange icon"? Upload your project along with an example of what you want to send. Joe T.
  17. Joe Tauser

    Using PTO in the new Unistream software

    Have you looked into talking to an EXF-RC15 high-speed counter module via CANbus? Joe T.
  18. Thanks everyone I think I like the idea of the splitter so will look for one. Thanks a million
  19. Hi, I cannot find the PTO function in the new Unistream software. I need to drive servo motors and steppers, what is the best and easiest way to do it?
  20. Flex has shown the actual numbers involved in the Linz as suggested. There is also another approach to your issue that would give you better resolution at the 16 bit side, depending on whether the pressure sensor is true analogue. Change the way you are hooking things up and use a "4-20ma/0-10V/whatever it is working with" splitter to effectively turn your output from the sensor into 2 outputs that can go directly into both plcs' inputs. Any net search will bring up myriad devices available to do this. cheers, Aus
  21. Hi all, I would like to know how to send a value of a MI trough email. I'm using v1210 PLC. I tried to send this value using the option "Indirect mail content" but an strange icon appears. Can I send more than only one value in the same email? Thank you!
  22. Ausman has provided a general purpose solution, but this is really extremely simple. A linearization FB with the 10-bit range going to the 16-bit range is all you need here, unless I'm misunderstanding something. But, as Ausman says, the output will be quite jumpy.
  23. Thanks Aus I will have a look and see if I can work it out 👍
  24. The PLC battery will last for years, but is only used when there is no 24V power applied.
  25. how much time and data will storage in memory whitout power?
  26. This is the easiest solution to the problem and can be added to the field components without replacing them. Joe T.
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