I want to construct a conditional IF/THEN/ELSE macro around the power status of a component that doesn't have a discrete POWER STATUS query command.

So I'm wondering if it's possible to use an existing status query as a "proxy," where a response indicates the power-on state, and a failure to respond (indicating a power-off state) would result in execution of the ELSE argument.

Example:

IF [PIP status] Pioneer 151FD returns [PIP OFF]
⇒THEN
     ....macro for the power-on state
⇒ELSE
     ....macro for the power-off state

Or would the failure to receive any response (from the powered-off component) simply result in an error that terminates the whole macro?