Using The Key Protect Level; Protection - Omron E5CN-HT User Manual

Using the Key Protect Level

4-8

Using the Key Protect Level

4-8-1

Protection

Operation/Adjustment
Protect
oapt
0
Level
Operation PV Can be dis-
level played
PV/SP Can be dis-
played and
changed
Others Can be dis-
played and
changed
Program Setting Can be dis-
Level played and
changed
Adjustment level Can be dis-
played and
changed
PID Setting Level Can be dis-
played and
changed
• To move to the protect level, press the O and M Keys at the same time for
at least three seconds in the operation level, adjustment level, program
setting level, or PID setting level. (See note.)
Note The key pressing time can be changed in the Move to Protect Level
Time parameter (advanced function setting level).
• The protect level protects parameters that are not changed during Con-
troller operation until operation is started to prevent them from being mod-
ified unintentionally.
There are four types of protection: operation/adjustment protect, initial
setting/communications protect, setting change protect, and PF Key pro-
tect.
• The protect level settings restrict the range of parameters that can be
used.
The following table shows the relationship between set values and the range
of protection.
0 1
Can be dis- Can be dis-
played played
Can be dis- Can be dis-
played and played and
changed changed
Can be dis- Can be dis-
played and played and
changed changed
Can be dis- Can be dis-
played and played and
changed changed
Can be dis- Cannot be
played and displayed and
changed moving to
other levels is
not possible
Cannot be Cannot be
displayed and displayed and
moving to moving to
other levels is other levels is
not possible not possible
• Parameters are not protected when the set value is set to 0.
• The default is 0.
Set value
2 3
Can be dis- Can be dis-
played played
Can be dis- Can be dis-
played and played and
changed changed
Cannot be Cannot be
displayed and displayed and
moving to moving to
other levels is other levels is
not possible not possible
Cannot be Cannot be
displayed and displayed and
moving to moving to
other levels is other levels is
not possible not possible
Cannot be Cannot be
displayed and displayed and
moving to moving to
other levels is other levels is
not possible not possible
Cannot be Cannot be
displayed and displayed and
moving to moving to
other levels is other levels is
not possible not possible
Section 4-8
4 5
Can be dis-
played
Can be dis-
played
Cannot be
displayed and
moving to
other levels is
not possible
Cannot be
displayed and
moving to
other levels is
not possible
Cannot be
displayed and
moving to
other levels is
not possible
Cannot be
displayed and
moving to
other levels is
not possible
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