GE D90 Plus Instruction Manual page 147

CHAPTER 6: COMMUNICATIONS
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 109: IEC 61850 GGIO4 analog configuration
The following settings are available.
IEC 61850 GGIO4 Analogs
Range: 4 to 32 in steps of 4
Default: 4
This setting specifies how many analog data points exist in GGIO4. When this value is
Plus
changed, the D90 must be restarted to allow the GGIO4 logical node to be re-
instantiated and contain the newly configured number of analog points.
IEC 61850 GGIO4 Analog 1 Value
Range: any FlexAnalog value
Default: OFF
These settings select the FlexAnalog value to drive the instantaneous value of each
GGIO4 analog status value (GGIO4.MX.AnIn1.instMag.f).
IEC 61850 GGIO4 Analog 1 Deadband
Range: 0.000 to 100.000 in steps of 0.001
Default: 0.000
These settings specify the deadband for each analog value. See IEC 61850-7-1 and IEC
61850-7-3 for details. The deadband is used to determine when to update the
deadbanded magnitude from the instantaneous magnitude and is represented as a
percentage of the difference between the maximum and minimum values.
IEC 61850 GGIO4 Analog 1 Minimum
Range: –1000000000.000 to 1000000000.000 in steps of 0.001
Default: 0.000
These settings specify the minimum value for each analog value. See IEC 61850-7-1 and
IEC 61850-7-3 for details. This minimum value is used to determine the deadband. The
deadband is used in the determination of the deadbanded magnitude from the
instantaneous magnitude.
These settings are stored as IEEE 754 / IEC 60559 floating point numbers. Because of the
large range of these settings, not all values can be stored. Some values are rounded to
the closest possible floating point number.
IEC 61850 COMMUNICATIONS
137