Siemens 7SJ82, Manual

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User-Defined Metered Values
Function Description of Pulse-Metered Values
i
i
NOTE
You can define additional metered values through DIGSI for user-specific applications.
Use pulse meters; then you can define the respective metered values through DIGSI and set parameters for
them analogously to the energy values. You can read out the metered values on the display of the device or
via DIGSI.
Through settings, you can individually set how each pulse-metered value is processed:
•
Parameter
Restore time
Hour-related point in time when the device will provide a metered value at the communication interface
for transmission. After this, the transfer takes place in accordance with the selected protocol.
Note: If the parameter is activated through a time setting, the parameter
Restore interval
will
automatically be deactivated.
•
Parameter
Restore interval
Adjustable period in minutes until the first and every further transfer of the metered value to the commu-
nication interface of the device. After this, it will be transferred in accordance with the selected log.
Note: If the parameter is activated through a time setting, the parameter
Restore time
will automati-
cally be deactivated.
In addition, restoring can be triggered via a routable binary input (
>Restore trigger
) or via a logical
internal binary input. The rising edge of the binary input leads to restoring and thus to provision of the
metered value at the communication interface.
The counter pulse of any external/internal pulse generator is connected to the device via a routable binary
input (
>Pulse input
). If this does not deliver any plausible values, this can be signaled to the device via
another routable binary input (
>External error
).
In compliance with IEC 61850, in the event of an external error, the quality of the pulse-metered value
changes to the state Questionable. No more pulses are added as long as the external error persists. Once the
external fault condition has been cleared, pulses are added again.
The quality of the pulse-metered value remains Questionable until a new meter content is specified for the
pulse-metered value by:
- Confirmation of the current meter content via Setting
- Setting a new meter content
- Resetting the meter content to 0
•
Parameter
Edge trigger
Through settings, you can select between counting only with a rising edge or with rising and falling
edges on the pulse input.
The pulse counter can be reset to 0. You can perform this resetting via the rising edge of a routable binary
input (
>Reset
) or via operation on the device.
To display the counting amount at the device display, use DIGSI to set the desired weighting of the counter
pulses, the unit of the metered value and a multiplication factor for every pulse generator. You can also assign
a user-specific name.
To do this, open the functional area Pulse-metered value in DIGSI information routing. (see
Figure 10-3 ).
Select the metered value and enter the settings under Properties.
10.8
10.8.1
Measured Values, Energy Values, and Supervision of the Primary System
10.8 User-Defined Metered Values
1322 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017