GE D90 Plus Communications Manual page 161

CHAPTER 2: MODBUS COMMUNICATION
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – COMMUNICATIONS GUIDE
F004: UR_SINT32 (signed 32-bit integer, 2 registers)
The high order word is stored in the first register. The low order word is stored in the second
register.
F010: Settings notification (16-bit enumeration)
This format code indicates the values for the settings notification command.
Enumeration Value
0 N_Clear
1 N_Loading
2 N_Notifying
3 N_Idle
F011: FlexCurve data (120 points) (UR_UINT16)
A FlexCurve is an array of 120 consecutive data points (x, y) that are interpolated to
generate a smooth curve. The y-axis is the user defined trip or operation time setting; the
x-axis is the pickup ratio and is pre-defined. See format F119 for a listing of the pickup
ratios; the enumeration value for the pickup ratio indicates the offset into the FlexCurve
base address where the corresponding time value is stored.
F013: Power factor metering (signed 16-bit integer)
Positive values indicate lagging power factor. Negative values indicate leading power
factor.
F050: Time and date (unsigned 32-bit integer)
Indicates the current time in seconds elapsed since 00:00:00 January 1, 1970.
F051: Date in SR format (alternate format for F050) (UR_UINT32)
First 16 bits are Month/Day (MM/DD/xxxx).
Month: 1=January, 2=February,...,12=December.
Day: 1 to 31 in steps of 1.
Last 16 bits are Year (xx/xx/YYYY): 1970 to 2106 in steps of 1.
F052: Time in SR format (alternate format for F050) (UR_UINT32)
First 16 bits are Hours/Minutes (HH:MM:xx.xxx).
Hours: 0=12am, 1=1am,...,12=12pm,...23=11pm;
Minutes: 0 to 59 in steps of 1.
Last 16 bits are Seconds (xx:xx:.SS.SSS): 0=00.000s, 1=00.001,...,59999=59.999s).
F060: FLOATING_POINT (IEEE 32-bit floating point values)
Indicates 32-bit single precision floating point numbers in accordance to IEEE 754.
MODBUS MEMORY MAP
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