ADLINK ND-6067 - Manual (Page 129)

127
6.1.3 Response of NuDAM Commands
The response message depends on NuDAM command. The response is
also composed with several characteristics, including leading code,
variables, and carriage return for ending. There are two kinds of leading
code for response message, ”!“ or ”>“ means valid command and ”?“ means
invalid. By checking the response message, user can monitor the command
is valid or invalid.
Note : Under the following conditions, there will have no response
message.
1. The specified address ID is not exist.
2. Syntax error.
3. Communication error
4. Some special commands does not have response.