MATLAB: Device communication

asciibauddeviceportscale

Hi
I need help with reading data from a device. My code :
s1 = serial('COM4');
s1.BaudRate = 9600;
s1.DataBits = 8;
s1.Parity = 'none';
s1.StopBits = 1;
s1.FlowControl = 'none';
s1.Terminator ='CR';
fopen(s1);
fread(s1);
fclose(s1);
delete(s1);
The problem occurs, because I have to send/transmit a macro to the device. Macro is ACK(acknowledgment/006) in ASCII. I don't know how to do this. What should I add to my code?
Thanks a bunch in advance!

Best Answer

fwrite(s1, char(6))