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viSci

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Posts posted by viSci

  1. Protobuf is a widely used Google serialization standard. I have an instrument that only communicates via HDLC encoded ProtoBuf messages. Protobuf tools are available for most languages but not LV as far as I know. So was wondering if any crafty folks out there have come up with a way to talk ProtoBuf in LV.   My understanding is that this would require building a Protobuf IDL (Interface Definition Language) compiler that would then guide a LV based encode/decode process.

  2. Yes you are correct.  A 32 bit windows app should be placed in the c:\program file (x86).  It appears that the LabVIEW installer build will let you specify an arbitrary absolute installation path but if you name it c:\program files it will silently install in the x86 directory.  This is one of those cases where the customer is not always right and I will attempt to explain again that their request to put a 32 bit application in the 64 bit directory does not make sense, is misleading and in fact maybe impossible to do in a standard LabVIEW installation build.

  3. Normally, my project installers all default to the c:\program files (x86) directory since I have the 32 bit version of LabVIEW.  I have a customer that would like their installer to install to c:\program files.  I have tried to add a c:\program files absolute path to the list of destination directories and have also marked it as the default directory.  No matter the installer still uses the original (x86) default directory.  Does anyone know of a way to fix this?

  4. I have a customer in the clinical assay processing business that would like to setup a LIMS system to automate and manage their workflow and interface to various off the shelf and custom analytical Instruments and robotics.  In my search of various LIMS on the market I noticed that at one time there was a LIMS written in LabVIEW by a company called Cardiac which is no longer in business.  I was wondering if anyone knows anything about this or similar products.

  5. I have two identical vi's (app1 and app2) that both create a user event and register that event in a event structure.  I have confirmed that each vi generates a unique User Event and Registration Refnum.  I am finding that a triggered user event in app1 seems to also be received in app2.  How is this possible?  I am pretty certain that I must be doing something completely stupid but right now I cannot see it.  Any thoughts would be very much appreciated.  BTW this is LV 13.0f2

  6. I had this brainy idea the other day to help a customer create an event scheduler by using google calendar to manage the events.  I could setup the events to send notifications (email or SMS?) to my app which would then decode a command embedded in the event description field.  The other possibility would be use the google calendar web services to poll for upcoming events.  Notifiction by email at first sounds good but then I still have to essentially poll an email server. 

     

    Anybody ever tried to do something like this before?

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