Polhemus Liberty Latus connecting error

[Yang]

Hi,

I am trying to connect Vizard to Polhemus Liberty Latus.

First of all, I set up the receptor and marker according to the user manual of Polhemus Liberty Latus. Then I launch a wireless marker successfully using the PiMgr program supplied by the Liberty Latus. The marker can track accurately when run with PiMgr.

Then with everything open, I input the following codes in Vizard according to the user reference in Polhemus Plug-in:

polhemus = viz.add('polhemus.dle')
libertylatus = polhemus.addLibertyLatus(marker=0,receptor=1)

It has no problem in creating the Polhemus extension. But trying to connect with Liberty Latus gives me the following error:

** ERROR: Failed to connect to a Patriot Wireless/Libert LATUS: Device not found
** ERROR: Failed to create extension sensor with polhemus.dle

Then I also tried to specify the number for marker and receptor. But same error messages come up.

Thanks in advance. Any help is appreciated.