<5. Functions>
161
IM 01E21A02-03EN
Table 5.12-2 Relationship among Feature Selection, Write Lock Switch and WRITE_ LOCK Parameter
Feature Selection
Write lock
switch
Write Lock
Hard W Lock
(bit4)
Soft W Lock
(bit3)
0 (OFF)
0 (OFF)
OFF
(Write lock disabled)
Setting unable (“1” (write lock disabled))
1 (ON)
1
(Write lock disabled)
(At factory shipping)
2
(Write lock enabled)
1 (ON)
0 (OFF)
ON
(Write lock enabled)
Setting disabled
* When both of “Hard W Lock” and “Soft W Lock” are set to 1(ON), the settings for “Hard W Lock”
takes precedence, and “Soft W Lock” is automatically set to 0(OFF).
When the write lock function (hardware write lock) is enabled with the switch, be sure to set “Hard
W Lock” (bit4) of Feature Selection for the resource block to “1”(ON). (“Hard W Lock” (bit4) is set
to “0” (OFF) at factory shipping.)
Parameter: To enable the software write lock which is set with Write Lock, it is necessary to set
Feature Selection to settings for factory shipping in advance. (“Hard W Lock” (bit4) is set to “0”
(OFF), and “Soft W Lock” (bit3) to “1” (ON) at factory shipping.)
NOTE
The use status of the write lock function can be checked using the parameters or the icons
shown on the display.
The following icons are displayed.
Icon
Description
Write lock is not in use.
(Parameters can be changed)
Write lock is in use.
(Parameter cannot be changed)