GE Multilin 850, Руководство по связи, Страница: 43 / 870

CHAPTER 5: DNP / IEC104 POINT LISTS
8 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE 5-3
Static (Steady-State) Object Number: 20
Change Event Object Number: 22
Request Function Codes supported: 1 (read), 7 (freeze), 8 (freeze noack), 9 (freeze and
clear), 10 (freeze and clear, noack), 22 (assign class)
Static Variation reported when variation 0 requested: 1 (32-Bit Binary Counter with
Flag)
Change Event Variation reported when variation 0 requested: 1 (32-Bit Counter
Change Event without time)
Change Event Buffer Size: 10
Default Class for all points: 3
FROZEN COUNTERS
Static (Steady-State) Object Number: 21
Change Event Object Number: 23
Request Function Codes supported: 1 (read)
Static Variation reported when variation 0 requested: 1 (32-Bit Frozen Counter with
Flag)
Change Event Variation reported when variation 0 requested: 1 (32-Bit Counter
Change Event without time)
Change Event Buffer Size: 10
Default Class for all points: 3
BINARY AND FROZEN COUNTERS POINT INDEX NAME/DESCRIPTION
0 Digital Counter 1
1 Digital Counter 2
2 Digital Counter 3
3 Digital Counter 4
4 Digital Counter 5
5 Digital Counter 6
6 Digital Counter 7
7 Digital Counter 8
8 Digital Counter 9
9 Digital Counter 10
10 Digital Counter 11
11 Digital Counter 12
12 Digital Counter 13
13 Digital Counter 14
14 Digital Counter 15
15 Digital Counter 16
ANALOG INPUTS
It is important to note that 16-bit and 32-bit variations of analog inputs are transmitted
through DNP as signed numbers. Even for analog input points that are not valid as
negative values, the maximum positive representation is 32767 for 16-bit values and
2147483647 for 32-bit values. This is a DNP requirement. The deadbands for all Analog
Input points are in the same units as the Analog Input quantity. For example, an Analog
Input quantity measured in volts has a corresponding deadband in units of volts. Relay
settings are available to set default deadband values according to data type. Deadbands
for individual Analog Input Points can be set using DNP Object 34.