GE 489 Communications Guide

44 489 GENERATOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE
F22
16 bits
TWO 8-BIT CHARACTERS
PACKED INTO 16-BIT UNSIGNED
MSB First Character
LSB Second Character
Example: String ‘AB’ stored as 4142 hex.
F24
32 bits TIME FORMAT FOR BROADCAST
1
st
byte
Hours (0 to 23)
2
nd
byte
Minutes (0 to 59)
3
rd
& 4
th
bytes
Milliseconds (0 to 59999)
Note: Clock resolution limited to 0.01 sec
Example: 1:15:48:572 stored as 17808828 (i.e., 1
st
word 010F, 2
nd
word
BDBC)
F50
16 bits ASSIGN ALARM/TRIP RELAYS
Bit 0 Relay 1
Bit 1 Relay 2
Bit 2 Relay 3
Bit 3 Relay 4
Bit 4 Relay 5
Bits 5 to 15 Not used
F100
Unsigned
16 bit integer
TEMPERATURE DISPLAY UNITS
0Celsius
1Fahrenheit
F101
Unsigned
16 bit integer
RS485 BAUD RATE
0 300 baud
1 1200 baud
2 2400 baud
3 4800 baud
4 9600 baud
5 19200 baud
F102
Unsigned
16 bit integer
RS485 PARITY
0None
1Odd
2Even
F103
Unsigned
16 bit integer
NO/YES SELECTION
0No
1Yes
F104
Unsigned
16 bit integer
GROUND CT TYPE
0None
1 1 A Secondary
2 50/0.025 Ground CT
3 5 A Secondary
F105
Unsigned
16 bit integer
OFF/ON SELECTION
0Off
1On
F106
Unsigned
16 bit integer
VOLTAGE TRANSFORMER CONNECTION TYPE
0None
1Open Delta
2Wye
Table CG–2: Data Formats (Sheet 3 of 14)
CODE TYPE DEFINITION

GE 489 Specifications

General

Brand	GE
Model	489
Category	Relays
Language	English