Maca

Just a quick thought, have you considered using GPS to get your accurate time base? I know it sounds like an overkill, but in terms of development time its probably pretty cheap.

Any luck yet? My only thought was the NI System Monitor, but you have already linked that in your post. Iam interested as I would like to monitor the CPU temp on some 8175 controllers, in order to keep an eye on the system health and I ran into the same problem. But I have been way too lazy to chase it up any further.

You have probably already seen it, but here goes anyway: http://zone.ni.com/devzone/cda/epd/p/id/2438 Its not NTP and Iam not sure if it will work with the DSP module, but it may be a start.

QUOTE (JiMM @ Aug 21 2008, 04:18 AM) I obviously spend waaaaay too much time using RT as I read this as compact Field Point, but front panel makes much more sense. It seems like a very interesting problem. Just a thought, but you stated that you checked the hibernation settings on the power options page accessed through the display properties page. did you also check that "system standby" and "turn off hard disks" on the "power schemes" tab were both set to never? As to the group policys concern that a fellow member has raised, is your computer part of a domain?

The interweb site is: http://www.ni.com/labs/ It looks like an excellent idea, the idea of learning a new language scares off a lot of people from compact field point. For many of these customers a 5K development environment is dirt cheap so hopefully NI will get some more customers and more importantly cFP and cRIO will gain more industry acceptance. So in short, bloody good work NI.

EJW's idea is FAR better than the two examples I gave in my first post (However I still don't like the express VI's), If i was you I would use his code. Just a question however where you said "control voltage" do you mean an analogue output or a digital output? I had assumed that is was a digital output, where as EJW is outputting a constant voltage from the DAC.

What sort of force and frequency response are you after? All the actuators I work with at work, are fed an analogue signal that controls the shuttle in the servo, A PID loop is then used to control the displacement or load. Can you give a bit more information on the application?

That was a champion little flick, but them again Iam a bit biased (Joss Rocks). Sorry to say its all over now folks, if ya didn't see you'll have to get the DVD.

That link does not appear to be working! The server keeps timing out.

I have not tried, but as Xandros is Debian based I would be trying to find a guide for installing LabVIEW on a Debian based Linux distribution such as Debian, Ubuntu, etc... See: http://forums.lavag.org/What-flavor-of-Lin...use-t10130.html where Jim states that he has installed LabVIEW 8.0 and 8.2 on Ubuntu. The following link provides step by step instructions for the installation: http://ubuntuforums.org/showthread.php?t=726092 It is beyond me why NI only officially support a few rarely used distributions (all being RPM based) and refuse to support the most popular distributions (some using RPM and others using DEB), perhaps they should follow VMware's lead and provide the package in a distribution independent format as well as a RPM file. Just my opinion, Sorry if you already had this information.

One starting point would be in the examples folder: examples\DAQmx\Analog Out\Generate Voltage.llb\Cont Gen Voltage Wfm-Ext Clk-Dig Start.vi This example can be found through the example finder in LabVIEW. You could also use the "sin" control on the trig pallet. As to the analogue inputs floating, do you have them terminated or are they just open circuit?

I spose installing ETS on the remote computer is out of the question?

You appear to be going about this the hard way. The DS18B20 is a digital 1 wire bus device, why not use a analogue device like a RTD, TC, or thermistor? It would be far easier. While it can be done, I definitely would not recommend using such a device to talk to LabVIEW via a USB-6008. If you really wanted to use the DS18B20, I would connect it to a micro (with an inbuilt 1 wire interface) with the micro reporting the temperature to LabVIEW via a serial port. Just my opinion.

My first thought was, "This is taking way to long to buffer, I need a faster connection". But shortly after that .... well lets just say I was scared just watching. I certainly know what emotion my pants would be feeling if I was there ... and it would be all brown. One brave lad, thats all I can say.

Yes you can use a standard USB web cam. Give NI-IMAQ for USB Cameras a go: From here give the standard IMAQ documentation a shot. What specifically are you analysing the image/video for?