489 GENERATOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE
13
CG.3.5 Dual Setpoints
Each communications port can individually select an Edit Setpoint Group of interest by
writing address 1342h. This way the front port, rear port and auxiliary port can read and
alter different setpoints simultaneously.
CG.3.6 Passcode Operation
Each communications port can individually set the Passcode Access by writing address
88h with the correct Passcode. This way the front port, rear port and auxiliary port have
individual access to the setpoints. Reading address 0203h,
COMMUNICATIONS SETPOINT
ACCESS
register, provides the user with the current state of access for the given port. A
value of 1 read from this register indicates that the user has full access rights to changing
setpoints from the given port.
CG.3.7 489 Memory Map
The 489 memory map is shown in the following table.
Table CG–1: 489 Memory Map (Sheet 1 of 30)
ADDR
Name
RANGE
STEP
UNITS
FORMAT
DEFAULT
PRODUCT ID
0000
GE Multilin Product Device Code
N/A
N/A
N/A
F1
32
0001
Product Hardware Revision
1 to 26
1
N/A
F15
N/A
0002
Product Software Revision
N/A
N/A
N/A
F16
N/A
0003
Product Modification Number
0 to 999
1
N/A
F1
N/A
0010
Boot Program Revision
N/A
N/A
N/A
F16
N/A
0011
Boot Program Modification Number
0 to 999
1
N/A
F1
N/A
MODEL ID
0040
Order Code
0 to 16
1
N/A
F22
N/A
0050
489 Revision
12
1
N/A
F22
N/A
0060
489 Boot Revision
12
1
N/A
F22
N/A
COMMANDS
0080
Command Function Code (always 5)
5
N/A
N/A
F1
N/A
0081
Command Operation Code
0 to 65535
1
N/A
F1
N/A
0088
Communications Port Passcode
0 to 99999999
1
N/A
F12
0
00F0
Time (Broadcast)
N/A
N/A
N/A
F24
N/A
00F2
Date (Broadcast)
N/A
N/A
N/A
F18
N/A
USER_MAP / USER MAP VALUES
0100
User Map Value #1 of 125...
N/A
N/A
N/A
F1
N/A
017C
User Map Value #125 of 125
N/A
N/A
N/A
F1
N/A
USER_MAP / USER MAP ADDRESSES
0180
User Map Address #1 of 125
0 to 3FFF
1
hex
F1
200
0181
User Map Address #2 of 125
0 to 3FFF
1
hex
F1
201
0182
User Map Address #3 of 125
0 to 3FFF
1
hex
F1
202
...
...
...
...
...
...
...
01FC
User Map Address #125 of 125
0 to 3FFF
1
hex
F1
27C
STATUS / GENERATOR STATUS
0200
Generator Status
0 to 4
1
–
F133
1
0201
Generator Thermal Capacity Used
0 to 100
1
%
F1
0
0202
Estimated Trip Time On Overload
0 to 65535
*
1
s
F12
–1
0203
Communications Setpoint Access
0 to 1
N/A
N/A
F126
N/A
1, 2, 3
See Table footnotes on page page 42
