28 May - 6 June 2008
We can in VB read the values from an Universal Temperature Probe Model EI-1022 and send out a square wave with a max frequentie of 30 Hz. This is because we used a software timer. We created also the design for the program. Now we are finnishing all paperwork. The paperwork discribes what we have done, our problems/difficulties, what not is finnished, how our program works, the code discription. Next week we give our presentation about our programs.
26 - 28 May 2008
We can send a value out the DAC ports from the LabJack module. But wen we use program settings from VB it doesn't work any more. This is because a point or comma give a different result but it does'nt related to American or European discription. But we coult fix te problem by settings in windows this changed it automaticly in VB. Now it's working fine.
14 - 25 May 2008
Finally we found our problem thanks to labjack support. Now we can trie the programs from DotNet_LJUD.zip file that we downloaded from the LabJack site without errors of connection. The DotNet_LJUD.zip file consist out 4 VB programs. We only use Simple, VBSimple and VBStream because we only could use the info of those 3 files. Simple is a VB program that reads some analog and digital ports from the LabJack module and sends some outputs on an analog and digital port. VBSimple is a VB program that reads info from the LabJack module, Driver version, ip- and mac address, serial number, an analog and digital port and a counter. VBStream is a VB program for stream reads on ports from the labjack module.
Note those VB programs are only for connection over USB. You have to change it to Ethernet if you want to use them to do this. See for this section 4.2.2 OpenLabJack() in the LabJack users guide.
You can reed here the sollution to our problem on the LabJack forum from the LabJack site:
http://www.labjack.com/forums/index.php?showtopic=3322
We add also Print Screens on this topic so you can see what we did.
Note those VB programs are only for connection over USB. You have to change it to Ethernet if you want to use them to do this. See for this section 4.2.2 OpenLabJack() in the LabJack users guide.
You can reed here the sollution to our problem on the LabJack forum from the LabJack site:
http://www.labjack.com/forums/index.php?showtopic=3322
We add also Print Screens on this topic so you can see what we did.
Wednesday 14 May 2008
Today, we have registered on the labjack forum, to ask for help. We can't make connection over Ethernet via Visual Basic. We can ping to the labjack module and make connection over USB whit the VBSimple program that we downloaded from labjack site ( http://www.labjack.com/labjack_ue9_downloads.php --> windows ud drivers examples --> DotNet_LJUD.zip ). We are also working at our program in C++.
Wednesday,7 May 2008
you can choose now in the user interface to send out digitally or to read analogue signals on different ports.
When you have chosen to send digitally, you can choose a value between 0 and 5 volts.
The analogue signals can be read with a range from -5v to +5v.
Now we are going to make a temperature reading with one of the analogue inputs.
When you have chosen to send digitally, you can choose a value between 0 and 5 volts.
The analogue signals can be read with a range from -5v to +5v.
Now we are going to make a temperature reading with one of the analogue inputs.
Thursday, 17 April 2008
So far we have tried tot write the progam to read analogue signals, it does not work because we don't know how to write the CalibrationInfo = structure where calibrarion information is stored.
Friday,2 May 2008
The first part of the program works, now we can send a constant DC signal from (you can choice a value from 0 to 5V ) from the screw terminals DAC1 or DAC2.
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