SET
DELETE
09.95
Siemens AG 2001 All Rights Reserved 6FC5197–jAA50 4–1
SINUMERIK 840C (IA)
4 MMC Area Diagnosis

4.1 General notes/overviews

4.1.1 Password

A password protects data against unauthorized access.
The MMC and NCK areas are password-protected.
Selection of the password
in the MMC area
Diagnosis Diagnosis
Start-up
Password Password
from SW 3 up to SW 2
The password for the MMC area is defined with MD11 in the NCK area. Every
additional value in MD11 must be 4 digits long. The standard value 0 corres-
ponds to password
1 + 1 + 1 + 1
Enter digit 1 four times using the keyboard.
Confirm with the INPUT key.
Set the password with the SET key.
If the password is set correctly, the following text appears in the alarm line:
“120000 PASSWORD SET”.
With the softkey DELETE, you can clear the password, the message “120001
PASSWORD RESET” then appears.
If the password was not enetered correctly, the message “120009 PASSWORD
INCORRECT” appears. The display is acknowledged with the softkey OK.
Note: The password must be deleted after start-up.
4 MMC Area Diagnosis
4.1 General notes/overviews