beautypg.com

0 - system security, 1 keyswitch, 0 system security – Rockwell Automation 57C620 AutoMax Programming Executive Version 3.8 User Manual

Page 143

background image

9Ć1

System Security

9.0 SYSTEM SECURITY

To protect the system against unauthorized online changes being

made from the personal computer, AutoMax incorporates three types

of security: a keyswitch on the rack Power Supply module, a

password, and access levels. Note that access levels need to be

considered only if multiple users will need simultaneous access to the

same rack.

9.1

Keyswitch

The keyswitch on the rack Power Supply module provides security

for online operations such as starting and stopping application tasks

by defining a privilege level for the rack. Only online operations

accessed through the ON_LINE option on the Task Manager menu

are affected by the position of the keyswitch. Saving tasks from the

rack, however, is permitted regardless of the keyswitch position. The

keyswitch has three possible settings: PROTECT", SETUP", and

PROGRAM". The AutoMax Executive software displays the current

position of the keyswitch on the top of the screen while you are

online. See below for a description of the privilege level defined by

each keyswitch position.

9.1.1

PROTECT Position

If the keyswitch is in the PROTECT" position, the user can only

monitor variables and save tasks from the rack. Even if the user

knows the password (see 9.2), he cannot perform any other

operations.

9.1.2

SETUP Position

If the keyswitch is in the SETUP" position, the user can monitor all

variables, and save tasks from the rack only. If the USER knows the

password (see 9.2), he can also modify tunable variables. He cannot

perform any other operations.

9.1.3

PROGRAM Position

If the keyswitch is in the PROGRAM" position, the user can perform

all online operations from the personal computer, i.e., load, save, run,

delete, and stop application tasks, and monitor and tune variables. If,

however, the password (see 9.2) has not been entered previously, or

is not entered when the user is prompted, the privilege level defaults

to that of the PROTECT" position.