Data library
8.6 Data sets
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
217
8.6.10
Data set DS 74 min. and max. measured values of the powers
The table below shows the content of data set 74 in which the minimum and maximum
measured values of the powers are transmitted. It also contains the associated time stamps
for these minimum and maximum measured values.
Table 8- 23 Content of data set 74
Byte
Description
Data
point
Source
WL
Source
VL
Format
Length
(bits)
Scaling
0
Minimum of the mean value of the power
factor
242
Meter. fct.
—
signed int
16
– 3
2
Maximum of the mean value of the power
factor
243
Meter. fct.
—
signed int
16
– 3
4
Minimum of the mean value of the apparent
power
246
Meter. fct.
—
unsigned
int
16
0
6
Maximum of the mean value of the apparent
power
247
Meter. fct.
—
unsigned
int
16
0
8
Minimum of the mean value of the active
power
250
Meter. fct.
—
signed int
16
0
10
Maximum of the mean value of the active
power
251
Meter. fct.
—
signed int
16
0
12
Minimum of the mean value of the reactive
power
248
Meter. fct.
—
signed int
16
0
14
Maximum of the mean value of the reactive
power
249
Meter. fct.
—
signed int
16
0
16
TS minimum of the mean value of the
apparent power
57
COM15
—
Time
64
—
24
TS maximum of the mean value of the
apparent power
58
COM15
—
Time
64
—
32
TS minimum of the mean value of the active
power
49
COM15
—
Time
64
—
40
TS maximum of the mean value of the active
power
50
COM15
—
Time
64
—
48
TS minimum of the mean value of the reactive
power
51
COM15
—
Time
64
—
56
TS maximum of the mean value of the
reactive power
52
COM15
—
Time
64
—
64
TS min. of the mean value of the power factor
53
COM15
—
Time
64
—
72
TS max. of the mean value of the power
factor
54
COM15
—
Time
64
—
80
Reserved
—
—
—
—
320
—
120
Property byte for byte 0 (minimum mean
value of the power factor)
—
Meter. fct.
—
PB
8
—
121
Property byte for byte 2 (maximum mean
value of the power factor)
—
Meter. fct.
—
PB
8
—
122
Property byte for byte 4 (minimum mean
value of the apparent power)
—
Meter. fct.
—
PB
8
—