Configuring Report Control Blocks

Introduction

Use report control blocks to transmit the information contained in data sets. Configure each report control block to specify how the IEC61850 server that resides in the 140 NOP 850 00 module transmits event data to IEC61850 clients.

There are two kinds of report control blocks:

Buffered (BRCB): Internal events (triggered by data-change and quality-change) cause either:
- the immediate transmission of a report, or
- the buffering of a report (within practical limitations) for later transmission.
A report is buffered so that data object values are not lost due to transport flow control constraints or a connection interruption. A buffered report control block provides sequence-of-events (SOE) functionality.The buffer size of a buffered report control block is fixed at 16 bytes for each report control block instance.
Unbuffered (URCB): Internal events (triggered by data-change and quality-change) cause the immediate transmission of a report on a "best effort" basis. If no association exists, or if the transport data flow is not fast enough to support the transmission, report data may be lost.

The IEC61850 server in the 140 NOP 850 00 module supports:

Up to 64 buffered or unbuffered report control block instances within a single IED.
Up to 8 instances of a single buffered control block, which can be transmitted to 8 clients, upon the occurrence of possibly different triggering conditions.

Before you can use the Report Control Block window, you first need to:

Enable the IEC61850 server resident in the 140 NOP 850 00 module.
Create a new server instance for the module.
Create a data set incorporating data attributes from this 140 NOP 850 00 module or from an ERT module.

NOTE: The 140 NOP 850 00 Ethernet module stores report control blocks in the LDevice System, at the LNode LLN0.

Report Control list

Report Control settings

Report Control Settings

Every report control block presents the following configuration settings:

Setting	Description
Identification area:
Buffered	Do one of the following: Select this to enable buffering for this report control block. De-select this to disable buffering. This setting is disabled by default.
Description	The editable description of the report control block, from 0...50 characters long.
Data Set	Select the data set to include in the report control block.
Report Id	A string value, 0...129 characters long, used as the source identifier in report control block transmissions.
Configuration Revision	The read-only revision number for the report control block. The initial value is 10000. NOTE: This setting is increased in increments of 10000 each time one of the following changes occurs: The identity of the data set associated with this control block changes. Content of the associated data set changes.
Parameters area:
Buffer Time (ms)	The time interval in milliseconds for the buffering of internal notifications caused by data-change (dchg) or quality-change (qchg) by the BRCB for inclusion into a single report.
Integrity Period	Enter a value, in milliseconds, to periodically force the transmission of all values in the data set. Using this setting synchronizes data values in all clients that receive the transmission.
Indexed	Do one of the following: Select this to enable indexing of this report control block. De-select this to disable indexing. This setting is enabled by default. NOTE: The Indexed setting applies only to Edition 2.0 of the IEC61850 protocol. It does not apply to Edition 1.0. The module supports up to 8 instances of indexed report control blocks.
Index Number	Select an index number for the report control block.
Trigger Conditions area:
Data-change	Select this to transmit a report upon a change in value for an item in the data set.
Quality-change	Select this to transmit a report upon a change in quality for any item in the data set.
Period	Select this to transmit a report of all data set values upon expiration of the Integrity Period. NOTE: Schneider Electric recommends that you do not use the integrity reporting function in a Hot Standby system, because the standby 140 NOP 850 00 module does not generate this report.
General-interrogation	Select this to transmit a report, in response to a request from a client, containing values for all data items in the data set. NOTE: All buffered events are transmitted before the general-interrogation report is transmitted. If the IEC61850 server receives a request for a general interrogation report while executing a previous general interrogation request, execution of the current request stops. The server instead begins to execute the new general interrogation request.
Report Content area:
Sequence-number	Select this to include an auto-generated transmission sequence number to the report control block transmission. This lets the client determine if all transmissions have been received.
Report-timestamp	Select this to include a time stamp in the report control block transmission.
Reason for inclusion	The reason for sending this report, for example: data change data quality change general interrogation periodic transmission
Dataset name	Select this to include the configured data set name in the report control block transmission.
Data reference	The name of the data set referenced in the report.
Buffer overflow	Select either: Yes: to enable the buffer overflow. (default) No: to disable it. Enabled only if Buffered is selected.
Entry Id	Report entry identifier. Entry Id(0) is reserved for the client. If the client sets Entry Id to (0), the server reports all historic events in its buffer. Enabled only if Buffered is selected.
Configuration revision	Select this to include the Configuration Revision setting of the report control block in the transmission.

Creating a New Report Control Block

To create a new report control block, follow these steps:

Step	Action
1	In the Report Control list, click the + button. A new report control block appears in list, with the default name report_n (where n represents the sequential number of the control block).
2	Enter values for the Identification, Parameters, Trigger Conditions and Report Content settings. Refer to the description of Report Control Settings (above). NOTE: To enter a setting value, click Enter or move your cursor and click outside the setting input field.
3	Save your edits.

Editing an Existing Report Control Block

To edit an existing report control block, follow these steps:

Step	Action
1	In the Report Control list, select an existing control block. The settings for the selected report control block appear in the Identification, Parameters, Trigger Conditions and Report Content areas.
2	Enter values for the Identification, Parameters, Trigger Conditions and Report Content settings. Refer to the section Report Control Settings (above). NOTE: To enter a setting value, click Enter or move your cursor and click outside the setting input field.
3	Save your edits.

Removing a Report Control Block

To remove a report control block from the IEC61850 Server, follow these steps:

Step	Action
1	In the Report Control list, select an existing control block. The settings for the selected report control block appear in the Identification, Parameters, Trigger Conditions and Report Content areas.
2	Click the – button. The control block is removed from the list.
3	Save your edits.