M800VS/M80V Series Connection and Setup Manual
36 Appendix 1: Setting the System Lock
36.1 Setting the Encryption Key
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System lock is a function for a machine tool builder to set a valid term to use the machine that machine user is using.
If a decryption code is not input by a specified limit, the servo ready finish signal will be forcibly turned OFF and the use of the
machine will be disabled.
Encryption key and decryption code need to be set in order to enable the system lock.
36.1 Setting the Encryption Key
The system lock function is enabled by inputting an encryption key file while the system lock is disabled.
While the system lock is enabled, the date and time of the CNC cannot be set to a past date and time. Make sure to set the
date and time correctly before inputting the encryption key.
(1) Set "#1249 set21/bit2" to "1".
(2) Save the encryption key file on an SD card (or USB memory).
(3) Insert the SD card (or USB memory) into the control unit.
(4) Select [Input/Output] on the Mainte screen.
(5) Enter an encryption key in the Input/output screen.
(a) Set the device name, directory and file name in the "A:Dev" area.
(b) Select "Memory" for the device field and "/CRE" for the directory field in the "B:Dev" area.
Contents in the directory and file name sections will be written over.
Directory field: "Encryption Key"
File name field: "ENCKEY.DAT"
(c) Press the menu key [Trnsfr A->B].
(d) When a confirmation message appears, press either [Y] or [INPUT].
If the encryption key has been set, the message "Setting completed normally" will display.
If the encryption key has not been set, the message "Can't write file for dev B" will display. Check the encryption key
file and set it correctly.
[Possible causes of this failure]
- Length of the encryption key is wrong; not eight letters
- You have entered the encryption key on two or more lines
- Unavailable letter is included (non-ASCII character or lower-case alphabetic characters)
If an encryption key not intended to be input has been input, it can be reset by setting the correct encryption key with
the same process. Note that, however, an encryption key cannot be reset after an expiration date is set by inputting
the decryption code.
If the specification is not provided, an error occurs when an encryption key is input.
(6) If the encryption key has been set correctly, a warning message "Z41 Decryption code is missing" will display.
To enable the system lock, proceed to "Setting of Expiration Date" (next page).
If you do not want to enable the system lock due to the miss entry of the encryption key, etc., the system lock will be
invalid by turning the power OFF and ON again to clear the encryption key.
CAUTION
The setting of encryption key and decryption code are required only when the system lock is used.
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