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FixedWire

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FixedWire last won the day on January 22 2016

FixedWire had the most liked content!

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About FixedWire

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    LabVIEW 2015
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    1998

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  1. FixedWire

    OPC UA experience

    When you've got too many new variables it's nice to know something works as it should (the UA client)! At this point I will not integrate the OPC UA. You did get me thinking though and I'd look into using the .NET OPC UA Client API for the simple fact the client worked so smoothly. The quality of the API is likely high too. https://www.unified-automation.com/products/client-sdk/net-ua-client-sdk.html -Peter
  2. FixedWire

    OPC UA experience

    Thanks everyone for the insights. After a lot of digging I too found it odd that the Data Change events weren't handled and the implementation(s) tend to go the binary route where DCOMs had to be configured. Yuck. As this project will run on an intranet the benefits (or complexities for that matter) of the OPC UA securities are of no real benefit as it'll just be a data pipe in the end. There's a client from unified-automation.com/ that's free that was an easy install and immediately found the server on the Wago SPS for anyone that looking to do a bit of experimenting.
  3. Hi, Has anyone gone down the road of evaluating or has experience implementing the OPC UA architecture? There are a couple of toolkits out there so thankfully there is no real need to tackle the OPC .NET API. At this point I'm trying to fetter the tech side of it. What were the unexpected roadblocks you ran into? If anyone can share their experiences it would be appreciated. Thanks!
  4. FixedWire

    cRIO TCP/IP Problems

    In case someone needs Jack's code here it is resaved to work on the latest LabVIEW.Robust TCP-IP (LV2016).llb
  5. FixedWire

    I2C implementation and DMA FIFO in sbRIO

    Have a look at the SPI examples on ni.com for the FlexRIOs. Some examples are overly simple and there's a couple well written ones using IPs which would work equally well for you.
  6. FixedWire

    [CR] JSON LabVIEW

    Yes Stobber, I hear you. The test equipment needs the STIL format & I need a way to both build and manipulate parameters. e.g. change the MOSI max voltage level. JSON was a thought and I'm open to suggestions. Haven't seen any vector generator source files yet...
  7. FixedWire

    [CR] HTML color table

    If you wanted to take it up a notch, it would be awesome to include the ability to get colours that actually look great together and up the design aspect for all of us. Have you seen https://color.adobe.com/# ? There must be an algo for this...
  8. FixedWire

    [CR] JSON LabVIEW

    Not sure if this is the best thread... I'm looking to use the JSON implementation to manipulate STIL files (IEEE 1450). Is an extension of the JSON.lvlib a good use case for this implementation? The format looks like this for SPI (serial peripheral interface bus): Signals { //My SPI Signal - Direction is Relative to Slave CLK In; MOSI In; MISO Out; CS In; } // end DCLevels SPI_Levels { CLK {VIH '3.3V'; VIL '0V'; } MOSI {VIH '3.3V'; VIL '0V'; } MISO {VIH '0V'; VIL '0V'; VOH '2.0V'; VOL '1.8V'; } CS {VIH '3.3V'; VIL '0V';} } Any suggestions on the best way to do this? Not using STIL is not an option. Thanks!
  9. FixedWire

    Zaluum (attempt at LabVIEW Clone?)

    Let's keep in mind that not changing too much is sometimes a good thing. The aerospace industry for example, with all the requirements needs to stay stuck in time for 20 years. I'm currently using LV2011 because of this. NI's HW integration is quite solid and good HW creates good systems. However, NI, your 20 GB updates are just bad news...just say'n.
  10. FixedWire

    DAQmx Task State Checking/Monitoring

    You may want to test this with the hardware and a scope using the PPS pulse that is available as a wired output on a GPS. The PPS (pulse per second) is a 1 microsecond pulse that is nano second accurate. Run it in a loop and you'll know!
  11. FixedWire

    TCP/IP error code 66

    Thank you Rolf. Good insight as always!
  12. FixedWire

    TCP/IP error code 66

    Just by adding the constant "immediate" to the TCP Read function fixed the issue here!
  13. FixedWire

    NIWeek 2013 Videos

    Thank you all for posting!
  14. FixedWire

    Monitoring Actors

    Great example QueueYueue. Interesting how the system spun up the Actor Core Name numbers unexpectedly out of sequence.
  15. FixedWire

    Support for 16/32 Serial ports (RS232)

    We've used Quadtech 4 port devices for USB in the field and they work fine. Just be very careful that there is not too much data coming down the pipe going through a low throughput USB port. This will cause your CPU to work very hard since the controller can't handle it. http://quatech.com/catalog/rs232_sds.php
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