Still can't get realtime temp logging

Question

I have been trying to get a chart showing temperature vs real time of the measurment, for example temperature vs the time (hh:mm:ss) of the measurement
All my graphs start at 7 am 1903. I have seeded the XScale.minimum and XScal.increment properties in the properties node for the chart with the start time of the measurment run. when I do that the x axis initially has the correct real time scaling, but my data does not appear. Only when I check autoscale x axis does my data appear, and then with the y axis at 1903 again.
How do I tell the chart to use the real time of the measurement on the y axis? Using fp2010 with temperature modules and fpread.vi
thanks again

Answer 1

Hi Ben, thanks for the response, and this is directed not just to you, although I certainly appreciate your time.
I'm REAL new to LAbview programming so keep that in mind.
I have several problems to deal with, but one thing at time.
I've included a VI which constantly reads temperature from my FP hardware, only a single channel at a time(one of the problems) and will set the x axis to the current time date at the start of the run, but the data being recorded doesn't appear on the chart unless I "autoscale" the x axis on the graph, and then the data displays with the x axis at 1903. Thats the problem that prompted me to find you guys and seek out tech support.
However, I have other issues with the FP stuff that I'm hoping I can get support for here
Here is a biggy:
When you look at the vi I posted you will see that unlike the Example FP Temp.vi, I found I had to put the Open, Create, Read and Close all inside the loop because if I didn't then the temperature reading I got from Read never changed after the first reading. I realise this is likely adding overhead, however I found I had to Close the FP stuff and redo the Open/Create sequence in order to ensure I got a "fresh" reading from the Read command. If I didn't the reading I got from the Read.vi never changed after the first reading. I didn't get any errors, I just didn't get any new info from the Read.vi
What I'm saying is I never could get the FP Temp Example to work with my hardware., but this vi does work in so much as it reads a new temperature everytime through the loop. Any comments on that would be appreciated.
I'm using FP 2010 with two FP-TC-120s, an FP-RLY-420 and an FP-0A0-210. However at the moment I'm only using (or trying to communicate with) one of the FP-TC-120s, but all of the modules are connected togethor and are showing me POWER/READY indicators. Power up self test appears normal as per the manuals and I beleive the hardware is working nominally.
PC is a windows 2000 pro 866 mhz connected to our 100 Mbps intranet through a hub to which the FP-2010 is also connected.
I have lots of other questions. One I will ask now is where do I find documentation on all the Property node properties for all the controls and indicators. When I go to select properties for a property node on something like a waveform chart there are hundreds of properties listed in the menus. Are these documented somewhere and if so where?
sorry for the length and I appreciate any and all responses.
thanks again.
Attachments:
sample_FieldPoint_Temperature_Example_5.vi ‏74 KB