D 
		
								
				
				
			
		David
For anyone interested that read my original posting regarding problem
controlling 2 serial ports.
One of the ports was a USB - RS232 adaptor. I found that even though the
port was Closed in code
before applying the new coms settings, the actual port on the PC had not
closed by the time I went to
reopen the port.
The solution was to add a delay between closing the port and applying the
settings.
				
			controlling 2 serial ports.
One of the ports was a USB - RS232 adaptor. I found that even though the
port was Closed in code
before applying the new coms settings, the actual port on the PC had not
closed by the time I went to
reopen the port.
The solution was to add a delay between closing the port and applying the
settings.