If a product is controllable via RS-232, there is a 9-pin port on the product and also a manual in the support area of the product page that outlines all the commands available.

Please be sure to confirm the menu settings as well as cable and pin assignments are correct first.

The manual refers to "stx" before the command itself.  This defines what type of command it is.  For example type 1 indicates there are no parameters with the command and type 2 indicates it has parameters to follow.

Attached is an example command using the Integration Designer software from RTI.

See that the first part "\x" lets us input the command using ASCII characters.

"02" indicates that it is a command that does have parameters.

The rest of the command is as defined in the RS-232 or remote manual for a particular product.