Response !AAD1(cr) if command is valid
where D1 is the current channel
number (a character of '1','2',
'3'or '4')
?!AA(cr) if an invalid command
is entered
Examples
command: &0AD (cr)
Response: !0A1 (cr)
The command asks the module
at address 0Ah to return the
current channel number. The
module at address 0Ah returns
its current channel number 1.
ADAM-4550 User's Manual
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