User manual

Reference PTQ-104S Rev2 ♦ Quantum Platform
User Manual IEC 60870-5-104 Server for Quantum
Page 148 of 195 ProSoft Technology, Inc.
February 22, 2013
C_SE_NA and C_SE_NB
The measured normalized point command uses one word with word-addressing.
For example, if you configured the following points:
The following table describes how these points would be used.
Inf. Object Address
Module Database Address
1100
Word 2000 (Word address 2000)
400
Word 10 (Word address 10. Must match the
configuration of point 400 in M_ME_NA.)
1101
Word 2001 (Word address 2001)
401
Word 12 (Word address 12. Must match the
configuration of point 401 in M_ME_NA.)
1102
Word 2001 (Word address 2001)
402
Word 18 (Word address 18. Must match the
configuration of point 402 in M_ME_NA.)
The measured normalized points use a data representation defined by the
protocol specification to represent fractional decimal values. The following table
describes the value for each bit as a reciprocal power of two (2), that is two (2)
raised to the power of a negative exponent ( -1 through -15). Bit 15 is the Sign
Bit.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Value
Hex(h)
Decimal
Sign
4000h
2
-1
2000h
2
-2
1000h
2
-3
800
h
2
-4
400
h
2
-5
200
h
2
-6
100
h
2
-7
80
h
2
-8
40
h
2
-9
20
h
2
-10
10
h
2
-11
8h
2
-12
4h
2
-13
2h
2
-14
1h
2
-15
4000h
0.5
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2000h
0.25
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1000h
0.125
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
6000h
0.75
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0