GE 845 Instruction Manual page 147

CHAPTER 4: SETPOINTS
FASTPATH:
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
DNP ANALOG INPUT POINT 0(31) DEADBAND
Range: 1 to 100000000 in steps of 1
Default: 30000
The setting is the threshold value to define the condition to trigger unsolicited responses
containing analog input data. Each setting represents the default deadband value for
the associated analog input. For example, to trigger unsolicited responses from the
845 when phase A current changes by 15 A, the DNP CURRENT DEADBAND for Phase A
current should be set to "15". Note that these settings are the deadband default values.
DNP object 34 points can be used to change deadband values from the default for each
individual DNP analog input point. Whenever power is removed and re-applied to the
845 the default deadbands are in effect.
The menu for the analog input points (DNP) or MME points (IEC 60870-5-104) is shown
below.
Path:
Setpoints > Device > Communications > DNP/IEC104 Point Lists > Analog Input / MME
Points
■
ANALOG INPUT/MME
■
POINTS
Message
Message
The binary outputs points for the DNP protocol, or the CSC/CDC points for IEC 60870-5-104
protocol, can be configured to a maximum of 16 points. The data source for each point is
user-programmable and can be configured by assigning FlexLogic operands. The menu for
the binary output points (DNP) or CSC/CDC points (IEC 60870-5-104) is shown below.
Path: Setpoints > Device > Communications > DNP/IEC104 Point Lists > Binary Output /
CSC/CDC Points
The DNP / IEC 60870-5-104 point lists always begin with point 0 and end at the first "Off"
value. Since DNP / IEC 60870-5-104 point lists must be in one continuous block, any points
assigned after the first "Off" point are ignored.
BINARY INPUT POINTS
Point: 0
Off
Point: 1
Off
Point: 31
Off
DEVICE
Range: any FlexAnalog parameter
Default: Off
Range: any FlexAnalog parameter
Default: Off
Range: any FlexAnalog parameter
Default: Off
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