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SMAC Actuator: PuTTY works but LabVIEW VISA Write fails

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Hi All,

 

I am trying to control the SMAC LCA8-010 actuator with LCC-10 controller. I wrote my functions in LCC-10 as macro functions with SMAC provided "Control Centre" software, and used LabVIEW VISA Write to call them.

 

I tried PuTTY first and it runs smoothly. But when I tried to run them in LabVIEW ("Control.vi" attached), for most of the time, the motor doesn't move, and the Property Node "Byte at the Serial Port" returned a 0, which means the "Write" function does not write anything to the controller.

 

What is strange is that it succeeded for some time (~10% of test runs). So the input format is correct. I am thinking about if the difference in mechanism of PuTTY user input and LabVIEW VISA Write function could make a difference. 

 

Can anyone help me with that? Thanks a lot!

 


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