Total number of values written to the device
ValuesSent indicates the total number of
values written to the device. The value is updated after each successful
write operation, and is set to
0 after the
fopen function is issued. If you are
writing the terminator,
ValuesSent reflects this
If you are writing data asynchronously, use the
to return the number of bytes currently in the output buffer.
When performing a write operation, the transmitted data is represented
by values rather than bytes. A value consists of one or more bytes.
For example, one
uint32 value consists of four
bytes. For more information about bytes and values, see Bytes Versus Values.
The default value is
Suppose you create a serial port object associated with the serial port COM1.
s = serial('COM1'); fopen(s)
If you write the
*IDN? command using the
the default data format is
%s\n, and the terminator
fprintf(s,'*IDN?') s.ValuesSent ans = 6