>I managed to send data out to serial port by using MSComm control. Thanks.
>I used the INPUT property to receive data from the serial port, it does
>read, but when I read the 2nd time it is the same message.
>
>Anyway to clear away the previous read data, as I'm using the
>Timer to perform read at time interval. Pls advise, thanks.

The way the documentation sounds calling input is suposed to clear the buffer but it does not. I use portopen to open and close the port this will clear the buffer and reread the serial port.

Hope this helps.