9.2.3 Commands and Responses

Command execution starts when the command line has been completed (<CR><LF>) and ends when the result code for the command is sent consisting of either a success or error response.

The formatting of these responses depends on the current verbosity level set by the ATV command. All responses consist of the format <RESPONSE><CR><LF>.


Level	Success Response Format	Error Response Format
0	0	1
1	0	1:<STATUS_CODE>
2	OK	ERROR
3	OK	ERROR:<STATUS_CODE>
4	OK	ERROR:<STATUS_MSG> ERROR:<STATUS_CODE> (if no message defined)
5	OK	ERROR:<STATUS_CODE>[,<STATUS_MSG>]


Field	Type	Description
<STATUS_CODE>	Integer	Numeric status code, see Status Response Codes
<STATUS_MSG>	String	Descriptive text detailing the error

If a command requires longer to process the request, then the success response will be used to indicate that the command was accepted. Command processing continues asynchronously, further responses are indicated via AECs.

If an error occurs during asynchronous processing of a command the response will either be a command specific AEC or a generic error AEC of the format:

<CR>+CMDNAME:ERRORRSP<CR><LF>

Where CNDNAME is the name of the command issued and encountering the error and ERRORRSP is an error response formatted as detailed in the table above. For example:

<CR>+SOCKBR:ERROR:4<CR><LF>