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In the event of uncertainty as to the control response or malfunctions the ser-
vice values are a proven and successful method for remote diagnosis. Write
the service values down (see 10.) at the time that the suspected malfunction
occurs. Send the service value table by fax or e-mail with a brief description of
the error to the specialist or manufacturer.
The service values (see 10.) include not only current measurement values and
operating states, but also all of the settings for the controller.Write the service
values down just once after commissioning has been successfully completed.
To protect against loss of data, record any statistics and data that are particu-
larly important to you (see 2.) at regular intervals.
Useful notes / tips and tricks