GE T35 Instruction Manual page 213

CHAPTER 5: SETTINGS
INVALID ATTEMPTS BEFORE LOCKOUT
within a three-minute time span before lockout occurs. When lockout occurs, the
FlexLogic operands are set to "On." These operands are returned to the "Off" state upon expiration of the lockout.
DENIED
PASSWORD LOCKOUT DURATION
of invalid password entries specified by the
The T35 provides a means to raise an alarm upon failed password entry. If password verification fails while accessing a
password-protected level of the relay (either settings or commands), the
asserted. The operand can be programmed to raise an alarm via contact outputs or communications. This feature can be
used to protect against both unauthorized and accidental access attempts.
The operand is reset with the
UNAUTHORIZED ACCESS
command. Therefore, to apply this feature with security, password-protect the Command level. The operand does not
generate events or targets.
If events or targets are required, the
event logs or targets enabled.
The following table outlines access level timeout settings.
SETTINGS  PRODUCT SETUP  SECURITY  ACCESS SUPERVISION  ACCESS LEVEL TIMEOUTS
 ACCESS LEVEL
 TIMEOUTS
These settings allow the user to specify the length of inactivity required before returning to the Restricted access level.
Note that the access level is set to Restricted when control power is cycled.
COMMAND LEVEL ACCESS TIMEOUT
return to Restricted access from the Command password level.
SETTING LEVEL ACCESS TIMEOUT
to Restricted access from the Command password level.
Dual-permission security access
SETTINGS  PRODUCT SETUP  SECURITY  DUAL PERMISSION SECURITY ACCESS
 DUAL PERMISSION
 SECURITY ACCESS
This feature provides a mechanism to prevent unauthorized or unintended upload of settings to a relay through the local
or remote interface.
The following settings are available through the local (front panel) interface only.
• — This setting is used for local (front panel or RS232 interface) setting access supervision. Valid
LOCAL SETTING AUTH
values for the FlexLogic operands are either "On" (default) or any physical "Contact Input ~~ On" value.
If this setting is "On," then local setting access functions as normal; that is, a local setting password is required. If this
setting is any contact input on FlexLogic operand, then the operand must be asserted (on) prior to providing the local
setting password to gain setting access.
If setting access is not authorized for local operation (front panel or RS232 interface) and the user attempts to obtain
setting access, then the UNAUTHORIZED ACCESS message displays on the front panel.
If this setting is "Off," firmware upgrades are blocked. If this setting is "On," firmware upgrades are allowed.
• — This setting is used for remote (Ethernet or RS485 interface) setting access supervision.
REMOTE SETTING AUTH
T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
— This setting specifies the number of times that an incorrect password can be entered
— This setting specifies the time that the T35 locks out password access after the number
INVALID ATTEMPTS BEFORE LOCKOUT
COMMANDS  CLEAR RECORDS  RESET UNAUTHORIZED ALARMS
operand can be assigned to a digital element programmed with
UNAUTHORIZED ACCESS
COMMAND LEVEL ACCESS

TIMEOUT: 5 min
SETTING LEVEL ACCESS

TIMEOUT: 30 min
— This setting specifies the length of inactivity (no local or remote access) required to
— This setting specifies the length of inactivity (no local or remote access) required to return
LOCAL SETTING AUTH:

On
REMOTE SETTING AUTH:

On
ACCESS AUTH

TIMEOUT: 30 min
LOCAL ACCESS DENIED
setting has occurred.
FlexLogic operand is
UNAUTHORIZED ACCESS
Range: 5 to 480 minutes in steps of 1
Range: 5 to 480 minutes in steps of 1
Range: selected FlexLogic operands (see below)
Range: FlexLogic operand
Range: 5 to 480 minutes in steps of 1
PRODUCT SETUP
or
REMOTE ACCESS
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