Applies To:
  • CitectSCADA 4.xx

When using the TRIO board driver, I receive an error message from the protocol driver stating that the port configured for that protocol can not be opened. 

This is due to the TRIO board driver not initialising succesfully.

CIT has confirmed this to be a problem in Citect for Windows versions 4.xx. This problem has been fixed in version 5.00.

The fix, which has been tested for V4.2, can be found on the FTP site.