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dataTaker Communications Parameters and Protocols Defining a Password The optional password is defined by the command in the general format PASSWORD="password " where password is a text string of up to 10 case sensitive characters. Defining the password as null removes an existing password. The following command defines the password for the logger PASSWORD="SecretCode" Logging onto the Datataker After a password has been defined to the Datataker, then to later reestablish communications with the Datataker simply enter the defined password SecretCode If the entered password matches the password stored in the Datataker, then the Datataker responds with Accepted and signs the user on for a new session. If the entered password does not match the stored password, then the Datataker does not respond, The RS232 COMMS serial interface remains open while there is communications activity, or until the SIGNOFF command is issued. If there is no communications activity for 300 seconds (5 minutes), then the RS232 COMMS interface will automatically signoff. The automatic signoff delay can be defined by the Parameter14 Command in the range of 1 - 255 seconds. If the Datataker is issued a RESET command during a session, then any stored password is lost. The Datataker will respond to the DEL character with << regardless of the password state. This allows a Datataker to be identified. Entering Commands Programming commands are entered into the Datataker by any o f four basic methods • the most common method is to enter commands into the Datataker directly from the host computer, via the RS232 COMMS serial interface Copyright © 1993 dataTaker Pty Ltd Document No. RM-003-A0 7