We are using a TC 331 that is controlled remotely via a LabVIEW VI. Everything works fine apart from the fact that, when changing the setpoint or any other setting, the heater jumps to "off" for a second or so. This causes the temperature to drop in a not acceptable way.
It looks as if the heater is always interrupted for a short moment when the device receives any data.
What could be the culprit here?
Unfortunately, I don't have the VI on the PC I'm writing from currently. If you wish I can upload it later on.
Post by Lake Shore Jeff M on Feb 13, 2019 10:14:44 GMT -5
Basically, the control algorithm will reset everything to zero if it sees a heater range or control mode change.
If you are the person I recently communicated with, can you please send me another email to email@example.com as I am trying to run the VI you provided and need to understand how it works so i can capture the commands your VI sends to the instrument.
Post by Lake Shore Jeff M on Feb 18, 2019 15:00:55 GMT -5
Following up on this entry, we did receive the Labview VI and found that the application did resend the Heater Range which does reset the control algorithm to zero. When writing any application, once you have configured the controller, you should not resend any configuration commands unless the value is changed.