The Acknowledgement Response; The Error Response - Zektor HDA604 User Manual

The Acknowledgement Response

Every command will be followed by an acknowledgement or error response.
Anytime you issue a command and there are no errors, you will receive the acknowledgement
response. Which is:
^+$
This can be turned off using the "'XS' Control Settings" on page 52.

The Error Response

Every command will be followed by an acknowledgement or error response.
If something is wrong with the command, you will get an error response. Which is
^!<error_number>$
which is the '!' followed by an error number (in ASCII), followed the '$' character.
For instance '9' is not allowed as a parameter in the 'P' (power) command, so:
^P 9$
^!2$
which indicates there was an out of range parameter.
The following are the Error Response codes that can be returned by the Zektor Switch:
1 - Unrecognized command.
2 - A parameter was out of range.
3 - Syntax error, or a badly formed command.
4 - Reserved.
5 - Too many or too few parameters.
6 - Device busy, cannot process command.
7 - Buffer overflow.
8 - The command is not valid if device is not powered on.
1xx Error initializing the Audio subsystem.
2xx - Error initializing the HDMI subsystem.
And some more detailed descriptions of their meanings:
Error 1 - The command given was not recognized as a Zektor Switch command. Commands are case
sensitive.
Error 2 - One of the parameters given was too large, or too small, the command will be ignored.
Error 3 - Something was wrong with the command's syntax. There was possibly extra data at the end
of the line, or non-decimal data as part of a parameter.
Error 4 - Reserved.
Error 5 - The number of parameters given does not match the number allowed by this command.
Error 6 - Currently this error is not returned, but could be at some future time.
Error 7 - An internal buffer has overflowed.
Error 8 - Power to the device must be 'ON' before this command is allowed. When powered off, the
HDMI and Audio board sets are fully powered down and can not respond to queries. In some
cases an "
down mode.
28
->
<-
" response will be returned for a command that cannot function in the powered
^!8$
Command sent to A/V switch
Error response to an out of range parameter
Zektor Switch Serial Protocol, Version 0.16, 5/13/16
Command Syntax