Siemens 6MD85, Руководство пользователя

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Function State Explanation
Test
The function is set to test mode. This state supports the commissioning. All outgoing infor-
mation from the function (indications and, if present, measured values) is provided with a
test bit. This test bit significantly influences the further processing of the information,
depending on the target.
For instance, among other things, it is possible to implement the functionality Blocking of
the command relay known from SIPROTEC 4.
Target of the Informa-
tion
Processing
Log The indication is labeled Test in the log.
Contact An indication routed to contact is not triggering the contact.
Light-emitting diode (LED) An indication routed to the LED triggers the LED (normal
processing)
CFC Here, the behavior depends on the state of the CFC chart.
•
CFC chart itself is not in test state:
The CFC chart is not triggered by a status change of infor-
mation with a set test bit. The initial state of the informa-
tion (state before test bit was set) is not processed during
execution of the CFC chart.
•
CFC chart itself is in test state:
The CFC chart continues to process the information (indica-
tion or measured value) normally. The CFC outgoing infor-
mation is provided with a test bit. The definitions in this
table apply to its continued processing.
A CFC chart can be set to the test state only by switching the
entire device to test mode.
Protocol Indication and measured value are transmitted with set test bit,
provided that the protocol supports this functionality.
If an object is transmitted as a GOOSE message, the test bit is set
spontaneously and the GOOSE message is transmitted immedi-
ately. The receiver of the GOOSE message is automatically noti-
fied of transmitter test mode.
If an object is transmitted via the protection interface, the test bit
is not transmitted. The
Test
state must also be transmitted as
information for this state to be taken into account in the applica-
tion on the receiver end. You must route the
Test
signal in the
DIGSI 5 project tree → Device → Communication routing.
The test mode of the differential protection will be dealt with
separately in the application.
Health
Health signals if a selected function can perform its designated functionality. If so, the health is
OK
. In case the
functionality is only possible in a limited way or not at all, due to state or problems within the device, the
health will signal
Warning
(limited functionality) or
Alarm
(no functionality).
Internal self-monitoring can cause functions to assume the health
Alarm
(see chapter 8 Supervision Func-
tions ). If a function assumes the health state
Alarm
, it is no longer active (indication
not active
is gener-
ated).
Only a few functions can signal the health state
Warning
. The health state
Warning
results from function-
specific supervision and - where it occurs - it is explained in the function description. If a function assumes the
Warning
status, it will remain active, that is, the function can continue to work in a conditional manner and
trip in the case of a protection function.
Basic Structure of the Function
2.3 Function Control
42 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017