Kramer Electronics SP-14 - Manual (Page 15)

3.2.2.2 Success Reply Packet with return value
For a function that returns a numeric value the reply packet of a successful call will look like this:
1 2 3 4 5 6 7 8 9
‘O’ ‘K’ ‘:’ value
Where value is the requested value represented in base 64.
3.2.2.3 Success Reply Packet with string returned
For a function that returns a string the reply packet of a successful call will look like this:
1 2 3 4 … n
‘O’ ‘K’ ‘:’ ASCII characters …
The string length will vary. The maximum length of string to expect is 100 characters. Therefore, it is
recommended to use a buffer of 103 bytes minimum for receiving this packet.
3.2.2.4 Failed Function (Error) Reply Packet
All function may fail due to errors occurring, in this case an error will be returned.
The reply packet will look like this:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
‘E’ ‘R’ ‘:’ error errorLL
Where
error is the major error number represented in base 64.
errorLL is the minor error number represented in base 64.
This table lists the major error codes.
Identifier
Value Base 64 Description
avParamErr_none 0 AAAAAA OK, no error
1 AAAAAB Undisclosed
avParamErr_param 2 AAAAAC Parameter invalid or out-of-range.
avParamErr_func 3 AAAAAD Function is not implemented.
4 AAAAAE Undisclosed
5 AAAAAF Undisclosed
6 AAAAAG Undisclosed
7 AAAAAH Undisclosed
8 AAAAAI Undisclosed
9 AAAAAJ Undisclosed
10 AAAAAK Undisclosed
11 AAAAAL Undisclosed
avParamErr_remtUnknown 12 AAAAAM Unknown remote command.
avParamErr_internal 13 AAAAAN Function failed error in errorLL.
Unlisted or undisclosed major error numbers received suggest a problem with the firmware or an
update to this protocol. The minor error number is only useful in debugging firmware and is therefore
undisclosed.