
B-63783EN-1/01 12.DISPLAY/SET/EDIT
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12.2.4 Program Encryption
General
A password can be set by setting parameter No. 2210 (PSW) and
parameter No. 2211 (KEY) to lock program memory.
When program memory is locked (when PSW is other than 0, and PSW
ad KEY do not match), NC program display, editing, and input/output
are disabled.
When program memory is unlocked (when PSW is other than 0, and
PSW and KEY match), NC program display and editing are enabled
normally. When an NC program is input/output, the program is
encrypted.
When the password is invalid (when PSW is 0), NC program display
and editing are enabled normally. In this case, NC program
input/output can also be performed normally.
- Invalidating the password
Normally, the unlocked state is set by setting the parameters so that
PSW and KEY match, then the password is invalidated by setting PSW
to 0. The password can be invalidated forcibly by applying the
procedure explained below. When this procedure is used, PSW need
not be set to 0, but locked NC programs are erased
1. While holding down numeric key .
0
,
CAN
, start the NC
2. Message "ALL LOCKED PROGRAM DELETE OK?" appears
3. If address
Y
is pressed, NC programs are erased, and PSW is
set to 0.
4. If address key
N
is pressed, nothing is performed.