Cannot read timeout property node of NI8452

Hi all,

I'm using NI8452 for I2C communication. Currently just learning to operate the device and use its LabView driver.

There is a property node of the device for timeout value.

When "Writing" the value, the VI is running without errors.

But when changing the node to "All Read" and trying to read the value of timeout, the VI arrow gets broken, and no error neither warning descriptions appear. 

Why? 

Thanks in advance, 

Arthur