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By Shuvankar Das
I want to connect My ccd camera with labview. The details of my system is given bellow. I cannot connect it please help OS: WINDOWS 7, 64bit LabView Run-Time 2013(64-bit) NI-IMAQ 4.8 NI-IMAQdx 4.3 Camera: QICAM Monochrome Cooled (QIC-F-M-12-C) Model QICAM Resolution 1392 x 1040 Sensor 1/2" Sony ICX205 progressive-scan interline CCD Pixel Size 4.65 x 4.65µm Cooling Type Peltier thermoelectric cooling to 25˚C below ambient Digital Output 12 bit Video Output FireWire (IEEE 1394b) Max. Frame Rate 10 fps full resolution @ 12 bits Pixel Scan 20, 10, 5, 2.5MHz Mount Type C-mount optical format
Re-establishing TestStand Database Connections: Does anyone know exactly how TestStand maintains its database connnection?By Bryan
TestStand Version(s) Used: 2010 thru 2016
Windows (7 & 10)
Database: MS SQL Server (v?)
Note: The database connection I'm referring to is what's configured in "Configure > Result Processing", (or equivalent location in older versions).
Based on some issues we've been having with nearly all of our TestStand-based production testers, I'm assuming that TestStand opens the configured database connection when the sequence is run, and maintains that same connection for all subsequent UUTs tested until the sequence is stopped/terminated/aborted. However, I'm not sure of this and would like someone to either confirm or correct this assumption.
The problem we're having is that: Nearly all of our TestStand-based production testers have intermittently been losing their database connections - returning an error (usually after the PASS/FAIL banner). I'm not sure if it's a TestStand issue or an issue with the database itself. The operator - Seeing and only caring about whether it passed or failed, often ignores the error message and soldiers on, mostly ignoring every error message that pops up. Testers at the next higher assembly that look for a passed record of the sub assemblies' serial number in the database will now fail their test because they can't find a passed record of the serial number.
We've tried communicating with the operators to either let us know when the error occurs, re-test the UUT, or restart TestStand (usually the option that works), but it's often forgotten or ignored.
The operators do not stop the test sequence when they go home for the evening/weekend/etc. so, TestStand is normally left waiting for them to enter the next serial number of the device to test. I'm assuming that their connection to the database is still opened during this time. If so, it's almost as though MS SQL has been configured to terminate idle connections to it, or if something happens with the SQL Server - the connection hasn't been properly closed or re-established, etc.
Our LabVIEW based testers don't appear to have this problem unless there really is an issue with the database server. The majority of these testers I believe open > write > close their database connections at the completion of a unit test.
I'm currently looking into writing my own routine to be called in the "Log to Database" callback which will open > write > close the database connection. But, I wanted to check if anyone more knowledgeable had any insight before I spend time doing something that may have an easy fix.
Wondering how many people have tried the new vipm.io site. We have added a ton of features to make it easy to Discover LabVIEW Tools and there are some cool ones coming soon.
Check it out and let me know what you think 😀
I'm taking the CLA exam in a few weeks and would like some feedback on the solution I put together (attached). A few specific questions:
Can I dump tags in the VI Documentation of the VI like I did in Error Handler - Console Error.vi and get credit since there are instructions for developers to complete this work? This would be my strategy if I run out of time.
Does this seem like a passing solution? Why/why not?
Where do you think I would lose the most points in this solution?
Any other feedback on this exam or general strategy tips are greatly appreciated!