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We have thorlabs SC10 optical beam shutter and shutter controller. I was trying to control the shutter with LabView program. I have attached the program vi.
What I understand after reading the manual (page 14-16) that the "ens?" will return "0" when the shutter is closed, and "1" if the shutter is open. However, I am getting always "5". I am unable to solve the problem. Can you please tell me the way out.
We are using serial to USB converter to connect the controller to the computer.
Your shutter status indicator is wired to the number of bytes written, not what the shutter is returning as a response.
You need to add a read function after your write to get the data returned by the shutter. Depending on how fast it responds, you may need to put a delay between the write and read operations.
-AK2DM
~~~~~~~~~~~~~~~~~~~~~~~~~~ "It’s the questions that drive us.” ~~~~~~~~~~~~~~~~~~~~~~~~~~
I have tried that and attached the vi. Please have a look. This time I am getting write counts "5" and read counts "9", no matter if I keep the shutter open or closed. I applied a delay of 5000ms after the write buffer.
sorry but it has been more that a year that I am not tweeking any VI, I am afraid I will not be able to help. I can send a the subVI I am using for my application, but it can only be more obscure as it has been modified and integrated in a huge Labview code. Let me know it you want it though.
It will be great if you send me the vi....May be I can learn something and solve the problem...It has been for a few days that this problem is bothering me.
I have uploaded the 2011 version of the vi. The thorlab technical support is very nice and working on it but they nee bit longer time. Since I stuck for a while for this shutter, therefore I posted in the forum.
