IO Trace attribute

Hi,

I got the following suspicious row in IO Trace.

16.  VISA Set Attribute ("ASRL10", 0x3FFF01BF, 128)
Process ID: 0x000013EC         Thread ID: 0x00000938
Start Time: 14:53:54.455       Call Duration 00:00:00.000
Status: 0 (VI_SUCCESS)

But I can't find any mapping table of the 0x3FF01BF VISA attribute name. In LabVIEW there is only the attribute names available as property nodes and not the actually number that shows up in IO Trace.

Can anyone tell me what 0x3FFF01BF is and where to find the VISA attribute mapping table?. In using LabVIEW 2009 (32bit) on Windows 7 (64-bit).

Best regards,

Mattias