3.4.4.1.6
Generating Datasets, Reporting
The specific project related feature of the P631’s communications behavior is
determined by the configuration of datasets, reports and high priority
transmission methods. A piece of information must be included in a dataset so as
to be transmitted as a signal. A dataset is a list to transmit certain data objects.
The selection of data objects and the resulting length of the dataset is
determined by the application; merely the maximum size of a dataset to be
transmitted by GOOSE (see next section) is limited to 1500 bytes. Data objects
provided by the P631 are available for selection with a structure as specified by
IEC 61850. Within the quality descriptor for each piece of information the invalid
bit and the test bit are served according to the P631’s state; the other attributes
are not set. Any number of datasets may be created with the IED Configurator.
Saving datasets at System\LLN0 is compulsory. The knowledge of dataset
content is imperative for decoding and evaluating received signals. Configuration
files possess a listing of all datasets with a description of all data objects
included.
Next to their use with high priority transmission methods (see following section)
datasets are used mainly for reporting. The P631 provides up to sixteen
unbuffered reports and eight buffered reports independent of the number of
clients logged-on. Management is arranged into sixteen Unbuffered Report
Control Blocks (urcbA to urcbP) and eight Buffered Report Control Blocks (brcbA
to brcbH). Whereas with unbuffered reporting pieces of information may be lost
during a communications failure, the buffered report control blocks support a
buffered transmission which is required for the uninterrupted writing of events. A
pre-defined dataset may be assigned to each report which will then determine
which data object will be transmitted with the relevant report. Assigning datasets
is not limited; the same dataset may be referenced in various reports or even in
GOOSEs.
The P631 can serve up to sixteen clients. Each client can log-on to any number of
available reports. One unbuffered report can be allocated to max. 8 clients, and
one buffered report can be allocated to max. 4 clients. A client is then able to
activate the wanted report for himself and to set the transmission behavior to his
requirements. The system concept with intended clients must be taken into
account when datasets are assigned to the reports.
Reports are not received by the P631.
3.4.4.1.7
Transmitting Modeled Signals Not Provided by the IEC 61850 Data Model
In addition to the information included in the IEC 61850 data model an optional
number of up to 16 signals can be selected from all the signals available in the
P631 to be transmitted via reporting. A selection of state signals (shuttling to
communications) is made by setting IEC: SigGGIO1 selection. The data
object indexes defined for SigGGIO1 must follow the sequence given for the ‘m
out of n’ selection for the state signals. The indexes SigGGIO1.ST.ind1 to
SigGGIO1.ST.ind16 may then be included in the datasets just as the other data
objects.
3.4.4.1.8
Single Commands
Single commands (e.g. short command, long command, persistent command)
are configured with the operating program. Sending commands to the P631 can
be carried out from all clients that have previously logged-on to the P631. But
only one command at a time is carried out. The operating mode
Direct control
with normal security
is provided for single commands.
3 Operation
P631
P631/EN M/R-11-C // P631-310-650
3-25
Summary of Contents for P631
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Page 236: ...P631 3 Operation 3 180 P631 EN M R 11 C P631 310 650...
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Page 266: ...P631 5 Installation and Connection 5 20 P631 EN M R 11 C P631 310 650...
Page 276: ...6 8 Configurable Function Keys P631 6 Local Control HMI 6 10 P631 EN M R 11 C P631 310 650...
Page 548: ...P631 10 Commissioning 10 10 P631 EN M R 11 C P631 310 650...
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Page 576: ...P631 15 Order Information 15 4 P631 EN M R 11 C P631 310 650...
Page 582: ...P631 A2 Internal Signals A2 4 P631 EN M R 11 C P631 310 650...
Page 608: ...P631 A4 Telecontrol Interfaces A4 18 P631 EN M R 11 C P631 310 650...
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