I have a RS232 port I am talking to. I have data coming in that I am monitoring, but when I don't want to monitor the data, I want to send a command to the device to either send a differentr data or stop the data. Now when there isn't data I can send commands and I have no problem, but when the data is coming in, I am unable to send the commands. Does anyone know a way to send the data, maybe disable the comport to get data and be able to send the command?or at least know where I can get the info?

thanks