GE 760

4 - 64 750/760 FEEDER MANAGEMENT RELAY – COMMUNICATIONS GUIDE
DATA FORMATS CHAPTER 4: MODBUS MEMORY MAP
F82
Trace Memory / Data Logger Trigger
0x0001 Trigger on pickup
0x0002 Trigger on dropout
0x0004 Trigger on trip
0x0008 Trigger on alarm
0x0010 Trigger on control
F83
1
Phase Sequence
0ABC
1ACB
F84
1
Overcurrent Direction
0Disabled
1Forward
2 Reverse
F85
1
Pickup Type
0 Over
1Under
F86
1
Auto-Ranging Power / Energy
All power quantities auto-range to display units relative to the nominal power of the system as defined
below. Multiply the power quantity in question by the multiplier in register 0316h to yield the correct
reading. The SI prefix for all power and energy quantities before scaling by the multiplier is ‘k’. All power
quantities are signed, single word registers (F4).
All energy quantities are unsigned, double word registers (F7).
The multiplier is determined from the nominal power which is defined as the product of three setpoints:
P
N
= Phase CT Primary x Bus VT Secondary Voltage x Bus VT Ratio
Example: If the 3φ Real Power register (0310) has a value of ‘123’ and the Multiplier register (0316) has a
value of ‘10’ then the value to display is 1230 kW.
F87
3
Undervoltage Restoration Source
0Bus
1Line
F88
6
Reserved for Mod 010
0
1
F89
7
DNP Data Link Confirmation Mode
0Never
1 Sometimes
2 Always
F90
7
Coil Monitor Type
0Trip
1Close
F91
10
Ethernet Options
This code represents the IP address, IP subnet mask, and IP default gateway of the relay. It is a string
containing up to 15 ASCII characters terminated by a NULL or blank space. The string must be
formatted as a correct IP address or subnet mask (for example, 3.94.247.21 or 255.255.255.0).
F92
10
Trace Memory Buffer
0 0 x 4096
1 4 x 2048
2 8 x 1024
3 16 x 512
F94
Bus Transfer Logic Schemes
0Scheme 1
1Scheme 2
Table 4: Data Formats (Sheet 19 of 20)
Type Value Description
1 2 3 4 5 6 7 8 9 10 11 12 13
For explanation of footnotes, see notes of end of Table.
NOMINAL POWER P
N
MULTIPLIER
P
N
< 1 MVA
1
1 MVA ≤ P
N
< 10 MVA
10
10 MVA ≤ P
N
100