Hi,
Using VISA, at program startup I am querying all available ports (for access and properties). In order to distinguish between RS232 and RS485 I use the attribute VI_ATTR_ASRL_WIRE_MODE.
Surprisingly, the call returns VI_ASRL_WIRE_485_4 although the port definitely is RS232, this is also confirmed by reading the port description which says: NI PCI-8430/8 (RS232).... (in accordance with NI-MAX)
The original software has been developed with CVI 8.5; since I recently upgraded from VISA 5.3 to 5.4 I suspect some incompatibility, could it be...?
Some other software is also running on the same computer so the run time engine is CVI2013.
Thanks!