Ametek AN-3100D Installation And Configuration Manual page 80

Serial ID Mismatch
A serial ID mismatch occurs when you try to upload a configuration that has
already been uploaded to another annunciator. When you upload a
configuration, a note is kept of which annunciator it "belongs to". Every time you
connect to an annunciator the stored serial ID is checked to make sure that it
matches the annunciator you are connected to.
In the case of a serial ID mismatch if you hit continue you will be able to read the
configuration from the annunciator but you will not be able to write the active
one to the annunciator.
To rectify this situation you should click "No" and then open the correct
configuration file, or create a new configuration.
68 AN-3100D ANNUNCIATOR INSTALLATION AND CONFIGURATION MANUAL