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"**:
-->DS: PBR4/123pwd
DS-->: A
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.