CHAPTER 3 BASIC OPERATION
E5CK
3–18
3.6 Protect Mode
Ă• This parameter allows you to protect until start of operation parameters
that do not change during operation to prevent unwanted modification.
Ă• The set value of the security" parameter (protect mode) limits the
range of protectable parameters. The following table shows the relationĆ
ship between set values and the range of protection. (Only modes
marked by can be operated.)
Set value
o
e
0 1 2 3 4 5 6
Calibration
Option
Expansion
Setup
Level 2
Level 1
Program
Level 0 *1
*1 Only the PV/Present SP” parameter can be displayed.
Ă• When this parameter is set to 0", parameters are not protected.
Ă• When this parameter is set to 5", operations in only the level 0 mode can
be selected, and the mode is not displayed on the menu display.
Ă• When this parameter is set to 6", the PV/Present SP" parameter can
only be monitored.
Ă• Default is 1".
Ă• This parameter disables key operation for switching run/reset or auto/
manual. For example, if you protect the key operation for switching
auto/manual by the key protect" parameter (protect mode) during auĆ
tomatic operation, the controller cannot be set to the manual mode, preĆ
venting manual operation of the controller during operation.
Ă• The following table shows the relationship between set values and keys
that are protected.
Set value
Description
0
Key protection OFF
1
A/M cannot be selected.
2
RUN/RST cannot be selected.
3
Both A/M and RUN/RST cannot be selected.
Ă• Default is 0 : All keys can be operated."
JSecurity
JKey protect
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