Difference between Serial Send and To Instrument

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Tahir
Tahir on 21 Apr 2012
The Instrument Control Toolbox in MATLAB/Simulink contains two blocks that can send data to a device on a serial port:
Serial Send: Send binary data over serial port
To Instrument: Send simulation data to instrument
It looks like the To Instrument block is more general-purpose than Serial Send. To Instrument allows you to select the underlying interface, with one option being "Serial".
What is the difference between To Instrument (when configured with Interface=Serial) and Serial Send? Is there any reason to prefer either one for sending, say, 4 bytes of numeric data to the device? Are there any other situations where only one of them would work?

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