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8.10 =echo
8.10.1 Description
This command keeps a running count of how many times the echo command has been called.
The counter can be incremented, set to any value, or reset to zero. This is intended to aid
users establishing and testing communication links to the unit. Any set value of the echo
command is not stored in non-volatile/persistent memory (the value will reset to 0 upon reset).
8.10.2 Usages
=ECHO increment counter
=ECHO,[Value] set counter to [Value]; response will be the same value
=ECHO,Reset reset counter to 0; same as =ECHO,0
8.10.3 Response
ECHO,[Counter Value]
Where Counter Value is an integer that increments each time the command is used.
8.11 ?echo
The ?ECHO command is identical to the =ECHO command.