4 ensuring program security – Rockwell Automation Liqui-Flo 1.5 General Purpose and Vector Duty User Manual

Page 32

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3-6

LiquiFlo 1.5 AC Drive, Software Reference Version 2.1

3.4

Ensuring Program Security

Parameter values can be password-protected using the LCD OIM. When the
password is enabled, parameter values can be displayed. However, if there is an
attempt to change a parameter value, a password pop-up box will appear on the OIM
screen to prompt for the user-defined password.

To set the write-protect password, select the Password icon from the main menu. See
figure 3.5. The password value can range from 1 to 9999. A value of 0 disables the
password (factory default).

When the password is enabled, the lock symbol on the screen changes from

to

.

When you enter the password, you can adjust parameters until you select Logout or
return to the process display screen, which re-activates the password. Refer to section
2.8 in for information about the process display screen.

This option is not supported in the VS Utilities software.

If There is More Than One OIM Connected to the Drive

Important:Setting the write-protect password value to zero on one OIM will disable

the write-protect password on all connected OIMs.

Setting the write-protect password in one OIM will not affect any other OIM connected
to the drive unless a write-protect password has also been set in the other OIMs. In
this case, the last password value entered becomes the password value for all
password-protected OIMs. (Each OIM cannot have a different password value.)

For example, if the write-protect password has been set to 5555 for the local OIM,
someone using a remote OIM with no write-protect password set can still program all
of the parameters. If the write-protect password is then set to 6666 on the remote
OIM, you will be required to enter 6666 on the local OIM to program the parameters.

!

ATTENTION:It is the user’s responsibility to determine how to distribute
the write-protect password. Reliance Electric is not responsible for
unauthorized access violations within the user’s organization. Failure to
observe this precaution could result in bodily injury.

Figure 3.5 – Setting the Write-Protect Password

Auto

Stopped

Main Menu

Password

P0: LiquiFlo 1.5

Password:

Set Wrt Prot PW

Set Access Lvl

Set Wrt Prot PW:

0

New Code:

Increase/decrease value

Move placeholder

Accept value

Highlight option

Highlight Password
icon

Monitor

Lang

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