Siemens SIPROTEC4 6MD63, Руководство по протоколу

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Data in the PROFIBUS-DP messages
7SJ61...7SJ63, 7SJ65, 6MD63 PROFIBUS-DP – Bus mapping
C53000-L1840-B006-02 1-5
1.3.3 Metered measurands
Scaling The scaling of the metered measurands, which are derived from
measured values, refers to
:
60000 impulses per hour for V = V
nom
and I = I
nom
V
nom
= N
OMINAL OPERATING VOLTAGE OF PRIMARY EQUIPMENT
(parameter address = 1101)
I
nom
= N
OMINAL OPERATING CURRENT OF PRIMARY EQUIPMENT
(parameter address = 1102)
Example
In the parameter set is configured:
I
nom
= 100 A und V
nom
= 12.00 kV,
60000 impulses correspond so that:
1 h * 100 A * 12 kV *
3
= 2078.46 kWh
Note
•
The type of the update (cyclic, with or without deletion) and the
update interval must be programmed for the metered measurands
(except for the operating hours meter) with the parameterization
software DIGSI.
•
The scaling of the metered measurands at binary inputs ("Wp(puls)"
and "Wq(puls)") depends on the externally connected pulse
generator.