Outline of message – IAI America TTA User Manual
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3. Outline of Message
Both commands and responses conform to the respective variable-length formats shown below.
(1) Command Format
Header
'!'
(1char)
Station
'XX(h)'
(2char)
Message ID
'XXX(h)'
(3char)
Content of command
(Length varies with each message)
SC
'XX(h)'
(2char)
CR
0Dh
(1char)
LF
0Ah
(1char)
(2) Response Format
(Normal response)
Header
'#'
(1char)
Station
'XX(h)'
(2char)
Message ID
'XXX(h)'
(3char)
Content of response
(Length varies with each message)
SC
'XX(h)'
(2char)
CR
0Dh
(1char)
LF
0Ah
(1char)
(Error response)
Header
'&'
(1char)
Station
'XX(h)'
(2char)
Error code
'XXX(h)'
(3char)
SC
'XX(h)'
(2char)
CR
0Dh
(1char)
LF
0Ah
(1char)
Checksum range
Checksum range
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