Parameter (P) command
(see command description format info here)
|Function:||Sends parameter or instruction to the DS|
|Can be issued through:||Network (broadcasts ignored*, login not required, immediate authentication for this command can be enabled); serial port|
|Command format:||P<relevant data> (see description of individual parameters and instructions for details)|
|Possible replies:||A, C, D, R|
|First introduced:||Earlier than "baseline" V3.14/V3.51|
|See also:||Parameters and instructions, Authentication|
Command code 'P' (Parameter) serves as a "common entry point" for sending a variety of parameters and instructions .
Network Parameter command can be made to require immediate authentication. To enable this feature:
|•||On-the-Fly Password (OP) setting must be programmed to 1 (enabled);|
|•||Password (PW) setting must contain a password (i.e. a string of non-zero length).|
When two above conditions are met each network Parameter command sent to the DS must contain a password, which is to be added at the end of the command after a slash character.
Example: below is the parameter command that changes the baudrate. The password is "123pwd"**:
If no password or incorrect password is supplied when the password is expected the Denied (D) reply code is returned.
* Without prior selection using Select In Broadcast Mode (W) command.
** Encapsulation characters such as IEC, STX, CR, and the command ID field are not shown.