Access Level Ddbs; Enhanced Password Security; Password Strengthening; Password Validation - GE P642 Technical Manual

Chapter 17 - Cyber-Security
Passwords may or may not be NERC compliant
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Passwords may contain any ASCII character in the range ASCII code 33 (21 Hex) to ASCII code 122 (7A Hex)
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inclusive
● Only one password is required for all the IED interfaces
4.2.3

ACCESS LEVEL DDBS

The 'Access level' cell is in the 'System data' column (address 00D0). Also the current level of access for each
interface is available for use in the Programming Scheme Logic (PSL) by mapping to these Digital Data Bus (DDB)
signals:
● HMI Access Lvl 1
HMI Access Lvl 2
●
FPort AccessLvl1
●
● FPort AccessLvl2
RPrt1 AccessLvl1
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● RPrt1 AccessLvl2
RPrt2 AccessLvl1
●
RPrt2 AccessLvl2
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Each pair of DDB signals indicates the access level as follows:
Level 1 off, Level 2 off = 0
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● Level 1 on, Level 2 off = 1
Level 1 off, Level 2 on = 2
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Level 1 on, Level 2 on = 3
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Key:
HMI = Human Machine Interface
FPort = Front Port
RPrt = Rear Port
Lvl = Level
4.3

ENHANCED PASSWORD SECURITY

Cyber-security requires strong passwords and validation for NERC compliance.
4.3.1

PASSWORD STRENGTHENING

NERC compliant passwords have the following requirements:
At least one upper-case alpha character
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● At least one lower-case alpha character
At least one numeric character
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At least one special character (%,$...)
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At least six characters long
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4.3.2

PASSWORD VALIDATION

The IED checks for NERC compliance. If the password is entered through the front panel, this is briefly displayed on
the LCD.
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P64x
P64x-TM-EN-1.3