
B-63943EN-1/02 14.DISPLAY/SET/EDIT
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14.2 EDIT
14.2.1 Memory Protection Keys
Overview
Memory protection keys can be provided so as not to inadvertently
store, change, or delete programs, offset values, parameters, settings,
and so forth.
For a multipath system, protection keys are common to all paths.
Signal
Memory protection signals KEY1 to KEY4<G0046#3 to #6>
[Classification] Input signal
[Function] These signals allow MDI panel operations that change the memory
contents. There are the following four signals. The target memory
contents depend on the setting of KEY (bit 7 of parameter No. 3290).
When the KEY is 0 :
KEY1 : Allows the input of tool offset values, workpiece origin
offsets, and workpiece coordinate system shift values.
KEY2 : Allows the setting of data input, macro variable input,
and tool life management data input.
KEY3 : Allows program input and editing.
KEY4 : Allows PMC data (counter data table).
When the KEY is 1 :
KEY1 : Allows program input, program editing, PMC data input.
KEY2 to KEY4 : Not used.
[Operation] If a memory protection signal is set to 0, the corresponding operation
is disabled.
If a memory protection signal is 1, the corresponding operation is
enabled.
Signal address
#7 #6 #5 #4 #3 #2 #1 #0
G0046 KEY4 KEY3 KEY2 KEY1
NOTE
For a multipath system, signal addresses are
common to all paths.