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interference (EMI), shielded wire run in conduit, extra shielding, or other precautions may be necessary.
3.6
Security
There are five levels of security access on EMCP 3 display. Level 0, Level 1, Level 2, Level 3, and “Service Tool” are the five levels. Any configurable parameter that is set to Level 0 can be changed by anyone at any time, and there will never be any security information on the display screen. Levels 1 and 2 represent increasing levels of access to the setpoints and functions of the controller. Both levels 1 and 2 can be password protected with separate user-defined passwords. Level 3 access is password protected at the factory, and requires contacting the Caterpillar® Dealer Solutions Network (DSN) to obtain a password. If the present security level of the controller is below the level needed to perform a desired function, a padlock and a number will be displayed at the bottom right hand corner of the display. The number represents the level of security that is required in order to perform the desired function; 1, 2, or 3. If there is a padlock but no number, then the Caterpillar service tool is required in order to perform the desired function; or the setpoint may be read only and cannot be changed. All of the adjustable parameters are associated with a specific level of security required to make an adjustment to the parameter. Certain functions, such as resetting the number of crank attempts, are also associated with a specific level of security. The passwords only affect changing parameters from the EMCP 3 control panel. Changing parameters with the Caterpillar service tool does not require passwords, since the service tool is already at the “Service Tool” security level. When connecting via the SCADA data link, passwords can also be used. The levels of access granted via SCADA are identical to the levels of access granted at the EMCP 3 control panel. However, the passwords themselves may differ. Further more, the EMCP 3 control panel and the SCADA data link may be at different levels of access at any given time. For more information about SCADA security please see “Data Link Security” under section 3.14. Level 1 and Level 2 passwords are disabled when shipped from the factory. Level 1 and Level 2 passwords can be user defined if desired. If the Level 1 and Level 2 passwords are not user defined, the Level 2 will be the minimum level. All parameters that require Level 0, Level 1, or Level 2 security will be able to be changed by anyone at any time. Note that in general, when a certain level of access is requested, the control panel will always move up in security level to the highest level of access that is not password protected. The security level and the Level 1 and Level 2 passwords can be changed from the security screen. To get to the security screen, start at the “MAIN MENU” screen.
