gpib agilent

[ufo900]

Hi. I searched in the web and in the manual of the puwer supply but i haven't found istructions how to implement it into NI Labview. Anyone could help me do it? I need to control voltage (up and down in function of the temperature wave of an instrument). Thank you all

[ufo900]

I used the Vi attached in this message.

Manually, the power supply works: if i set 2V it gives 2V

With the GPIB control, if i set 2V i read 2V in the program but the power supply gives 0V!

How to fix this? 

[smercurio_fc]

You haven't told us what power supply you're using, or provided a link to the manual.

[ufo900]

you're right, sorry about that.

manual attached.

i solved the problem explained before.

Another issue now: I need to "PID" the voltage based by a temperature value, that assume a costant value, sine waveform values, casual waveform values. Don't know how to PID the voltage.. 

[smercurio_fc]

PID refers to a type of control loop: http://en.wikipedia.org/wiki/PID_controller

You can implement the PID loop yourself (examples have been posted and you can search for them), or you can also purchase the PID Control Toolkit from NI.