|
|
| Author |
Message |
sfjwatts
Newbie
Joined: 29 Aug 2007
Posts: 1
|
 Posted: Thu Jan 10, 2008 10:26 am Post subject: PT-104 Calibration data? |
 |
|
For the last few months I have be struggling with getting a PT-104 working with Labview 8.5. I have had some success but I have never been able to get data consistently. I have read through the discussion forums on this web site and the National Instruments web site and found a few other people who have encountered similar problems.
Anyway, I have written my own software but would like to clear up a couple of points:
The Labview vi has an option for 2,3&4 wire PRT's, how do I write the code to ensure that I am making a four wire measurement?
Is the protocol in the manual the full protocol for the unit?
Also it would be helpful if you add a little more detail to the calibration data, ie state the the calibration are bytes 19-22 for channel and and that 19 is the LSB.
regards
Simon |
|
| Back to top |
|
 |
gruntman
Guru
Joined: 28 Sep 2006
Posts: 88
Location: Garden City, KS USA
|
| Posted: Fri Jan 25, 2008 4:53 pm Post subject: |
|
|
Simon,
The code that you need to call to ensure that you are making a 4 wire measurement is pt104_set_channel. The function is:
short pt104_set_channel (
unsigned short port,
unsigned short channel,
unsigned short data_type
unsigned short no_of_wires);
where no_of_wires specifies how many wires the PT100 or PT1000 has (set to 2, 3 or 4 depending on your configuration).
Regards,
Richard Boyd
Technical Specialist
http://www.pc-oscilloscopes.com |
|
| Back to top |
|
|
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Cart
Email