How to communicate with a torque cell through Matlab?

Hi,

I'm trying to communicate with a torque cell using Matlab. Here is my code:

ser1 = serial('COM4', 'BaudRate', 9600);
fopen(ser1);
serialbreak(ser1);
fscanf(ser1);

while counter<=10
fprintf(ser1,'%s', 'Get_Offset_Value');
OffsetValue= fscanf(ser1);
fprintf(ser1,'%s', 'Get_Offset_Load');
OffsetLoad= fscanf(ser1);
fprintf(ser1,'%s', 'Get_Fullscale_Value');
FullscaleValue= fscanf(ser1);
fprintf(ser1,'%s', 'Get_Fullscale_Load');
FullscaleLoad = fscanf(ser1);
fprintf(ser1,'%s', 'Normal_Data_Request');
NormalDataRequest= fscanf(ser1);
fprintf(ser1,'%s', 'Get_Decimal_Point');
DecimalPoint= fscanf(ser1);

RawTorque = (NormalDataRequest-OffsetValue)*((FullscaleLoad-OffsetLoad)/(FullscaleValue-OffsetValue))/DecimalPoint;
Torque(counter) = RawTorque*141.6116;

end

fclose(ser1);

Get_Offset_Value, Get_Offset_Load, Get_Fullscale_Value, Get_Fullscale_Load, Normal_Data_Request, and Get_Decimal_Point are all commands that the Torque cell programming guide (link found below) has in it. http://www.futek.com/files/pdf/Manuals_and_Technical_Documents/USB1XX%20USB2XX%20Programmer's%20Guide.pdf

Basically, I'm trying to acquire these values. I have successfully created the connection with the torque cell through the serial port but I am having trouble acquiring the values after that. I am trying to do so by writing to the torque cell using fprintf and then scanning the torque cell using fscanf. When I do this though it comes up with an error stating "Warning: A timeout occurred before the Terminator was reached." I have tried changing the timeout to a longer period of time but the error still occurs. I usually get 'G Nª' along with the error and I don't know what that means. If I add more than one fscanf in a row, it gives me different values (usually just 0) with different units, but this is regardless of what I enter in the fprintf section.

Any suggestions on how to get actual values instead of this error?

Thanks,

Amy