Mitsubishi Electronics DX-TL4516U ユーザーズマニュアル

47

Operations

Up to 500 specified areas can be locked preventing acciden-
tal deletion of important data. Only the data in the main de-
vice can be locked. When the main device is partitioned, the 
data in the normal and alarm areas can be locked.

Protect Recorded Data

Protected Data Information

Change Protected Data Settings

User Menu

1.  Set the start and end points of the data to be locked.

•  The data in the area which is currently set to be 

played back (normal or alarm) can be locked. 

•  The points are set by the bookmark. Select the 

desired bookmark number.

• 

 See page 82 for registering a bookmark.

2.  Select “Protect.”

 The data is locked in 512 MB unit. For the date and time 

to be locked, the start or end point of one (or more) data 
block which including the specified bookmark number are 
registered,  so  the  date  and  time  registered  may  not  be 
similar to those of the specified bookmark.

 

While  recording,  the  data  blocks  which  is  recorded  cur-
rently and is recorded next cannot be locked.

3.  To  check  the  locked  data,  select  the  <Protected 

Data Information>.

•  Select  the  area  to  be  displayed  in  the  <Select 

Source Device> (

 page 39).

Search:  Displays  the  picture  of  the  start  point  of 
the selected area.

Check:  Checks  the  device  in  which  the  locked 
area is recorded.

4.  To  cancel  the  lock,  select  “Disable”  of  the  desired 

area  in  the  screen  of  <Change  Protected  Data 
Settings>.

Search:  Displays  the  picture  of  the  start  point  of 
the selected area.

 The data cannot be locked when the start and end times 

are not set in order.

 The data of the LPA area is locked automatically after re-

cording. The number of areas available to be locked is up 
to 500 areas of normal, alarm, and LPA areas. Search is 
executed in search by alarm list. (

 page 94)

 When deleting the main device data including the locked 

data, the locked data is also deleted.

 When the locked areas are overlapped, the lock function 

is as follows.

The area previously locked

The area locked later

<Protect Data> 
menu setting

The registered
data area

The area previously locked

The area locked later

(2 areas)

<Protect Data> 
menu setting

The area previously locked

The area locked later

The registered
data area

(3 areas)

<Protect Data> 
menu setting

The area previously locked

The area locked later

The registered
data area

(1 area)

(The other areas set are not registered.)