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489
Communications Guide
http://www.GEindustrial.com/multilin
53
GE Multilin
Analog Input / Input
Change (Objects 30/32)
In the following table, the Format column indicates that the associated data point
format is determined by the entry in Data Formats on page 40. For example, an
“F1” format is described in that table as a (16-bit) unsigned value without any
decimal places. Therefore, the value read should be interpreted in this manner.
Many of the values reported by the 489 have a size of 32-bits and have had their
upper and lower 16-bit components assigned to separate points. Where indicated,
refer to the appropriate note following the table for more detail.
Table 8: Analog Inputs Point List (Sheet 1 of 4)
INDEX FOR-
MAT
DESCRIPTION EVENT CLASS
ASSIGNED TO
NOTES
0 F133 Generator Status Class 1 Note 3
1 F1 Generator Thermal Capacity Used Class 1
2 F1 Estimated Trip Time On Overload
(seconds, 65535 means never)
Class 1
3 F134 Cause Of Last Trip Class 1 Note 3
4 F19 Time Of Last Trip (Upper 16 Bits) Class 1 Notes 3,4
5 F19 Time Of Last Trip (Lower 16 Bits) Class 1 Notes 3,4
6 F18 Date Of Last Trip (Upper 16 Bits) Class 1 Notes 3,4
7 F18 Date Of Last Trip (Lower 16 Bits) Class 1 Notes 3,4
8 F1 Tachometer Pre-Trip Class 1 Note 3
9 F1 Scale factor for pre-trip current readings
(pre-trip points marked with “Note 6”).
Will always be a power of 10 (1, 10, 100,
etc.). Changes only when the configuration
setpoints are changed.
Class 1 Note 3
10 F1 Phase A Pre-Trip Current Class 1 Notes 3, 6
11 F1 Phase B Pre-Trip Current Class 1 Notes 3, 6
12 F1 Phase C Pre-Trip Current Class 1 Notes 3, 6
13 F1 Phase A Pre-Trip Differential Current Class 1 Notes 3, 6
14 F1 Phase B Pre-Trip Differential Current Class 1 Notes 3, 6
15 F1 Phase C Pre-Trip Differential Current Class 1 Notes 3, 6
16 F1 Pre-Trip Negative Sequence Current Class 1 Note 3
17 F1 Ground Current Scale Factor. Will always
be a power of 10 (1, 10, 100, etc.).
Changes only when the configuration
setpoints are changed.
Class 1 Note 3
18 F6 Pre-Trip Ground Current (scaled according
to previous setpoint)
Class 1 Note 3
19 F1 Phase A-B Pre-Trip Voltage Class 1 Note 3
20 F1 Phase B-C Pre-Trip Voltage Class 1 Note 3
21 F1 Phase C-A Pre-Trip Voltage Class 1 Note 3
22 F3 Pre-Trip Frequency Class 1 Note 3
23 F1 Pre-Trip Real Power (MW) Class 1 Notes 3,8
24 F1 Pre-Trip Real Power (kW) Class 1 Notes 3,8
25 F1 Pre-Trip Reactive Power (Mar Class 1 Notes 3,8
26 F1 Pre-Trip Reactive Power (kvar) Class 1 Notes 3,8
27 F1 Pre-Trip Apparent Power (MVA) Class 1 Notes 3,8
28 F1 Pre-Trip Apparent Power (kVA) Class 1 Notes 3,8
29 F1 Last Trip Stator RTD Class 1 Note 3
30 F4 Last Trip Hottest Stator RTD Temperature
(°C)
Class 1 Note 3
31 F1 Last Trip Bearing RTD Class 1 Note 3
32 F4 Last Trip Hottest Bearing RTD Temperature
(°C)
Class 1 Note 3
33 F1 Last Trip Other RTD Class 1 Note 3
34 F4 Last Trip Hottest Other RTD Temperature
(°C)
Class 1 Note 3