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Serial Lockout
Question:

Will a serial lockout occur if too many invalid attempts are made?



Answer:
Yes.  When Leviton controllers are accessed via RS-232 (serial) connections, the software application is required to establish a secure connection by matching Code 1 (Master) in the controller with Code 1 in the software.  If the codes do not match, an error "PLEASE CORRECT USER CODE 1" will be displayed.
 
If three invalid attempts are made with the wrong code, serial access is denied for 1 hour.  Subsequent attempts within this one hour lockout will restart the one hour lockout timer.

 

To reset the lockout, simply power down the controller, both battery and AC, for a few seconds and power back up.
Article ID: 736