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UR SERIES – COMMUNICATIONS GUIDE
OVERVIEW
CHAPTER 3: IEC 61850 COMMUNICATION
3
•
Substation, each of which describes the topology of a substation and either the assignment of logical nodes in the
IEDs to power system elements or the required types of logical nodes for each of its power system elements
•
Communications, which describes which IED access points (for example, IED Ethernet ports) are connected to which
communications subnetworks, and describes the communications addresses used by the IED access points
•
IED, each of which describes for a single IED its access points, logical devices, logical nodes, control blocks, and
datasets. The logical nodes are described using templates. The IED element can also contain some or all of its settings
and factory configured values.
•
DataTypeTemplates, which describes the data objects and data attributes of the logical node templates used in the
IED section(s). The DataTypeTemplates element can also contain settings and factory configured values.
These elements are so-called "Public" elements, in that they are precisely defined in IEC 61850-6, a publically available
document. These elements are expected to be understood by all IEC 61850 configuration tools, and any tool is allowed
modify the settings in them. UR 7.30 and later SCL files contain in these Public elements all settings that directly control
implemented IEC 61850 services, including GOOSE publish and subscribe, and MMS services such as reports and
commands. UR 7.30 and later SCL files also contain for each of the UR elements that have so far been mapped to IEC
61850 a description of the UR element's FlexLogic and FlexAnalog operands and of the UR element's settings that select
an operand. Thus configuration tools of any manufacturer can be used to configure the IEC 61850 communication aspects
of UR 7.30 and later devices.
In addition to Public elements, SCL allows elements named "Private," whose content is not defined by the standard and
which is contained within a <Private></Private> tag. The content and format of Private elements is determined by the
manufacturer of the tool that inserts them into an SCL file, and as such is in general understood only by that tool. Only the
owner's tools are allowed to modify a Private element. Other tools are required to preserve Private elements unchanged.
Different manufacturers, indeed even different tools from the same manufacturer, use Private elements for different
purposes. A UR SCL file has two Private elements. The first Private section contains all the settings not in a Public element.
The second Private section contains an authentication code that allows the UR and UR Setup to determine if a non-GE tool
has modified the first one. Thus between the Public and Private elements, a UR SCL file contains all of the device's settings
in that single file.
3.1.8.1 File types
SCL file names are given different extensions based on where they have been created in the substation configuration
process and where they are intended to be used, as follows.
•
.icd
—
Default settings on UR
— An IED Capability Description (ICD) SCL file describes to a system configurator tool a
single type of IED. For UR 7.30 and later, an ICD file describes a UR with a particular order code. It includes all the data
attributes, control blocks, and settings with the factory default values for that order code. A copy of it can be obtained
directly from a UR device, or from EnerVista UR Setup.
•
.ssd
— A System Specification Description (SSD) SCL file describes the single line diagram and functions of the
substation and the required logical nodes. It is intended for exchange from a system specification tool to a system
configurator and as such is not used by UR 7.30 and later.
•
.scd
— A System Configuration Description (SCD) SCL file describes the complete system configuration, including the
single line diagram, all the IEDs and their information models, and the data flow between IEDs. It is intended for
configuration exchange from the system configurator tool to each of the IED configurator tools. Typically a system
configuration tool creates an SCD file by merging an ICD file for each IED in the substation with an SSD file, then
configuring the GOOSE and report communications. EnerVista UR Setup is an IED configurator tool, and can accept an
SCD file and save the settings for any UR devices it contains in URS files. EnerVista UR Setup can then send the
settings in these URS files to the corresponding UR devices.
•
.cid
—
Settings sent to UR (may or may not be actual settings)
— A Configured IED Description (CID) file describes the
required settings of an IED and is intended for transmission of configuration from an IED configurator to the IED. It is
an SCD file, possibly stripped down to what the concerned IED needs to know. EnerVista UR Setup creates and sends a
CID file to the UR device when IEC 61850 settings are involved. A UR 7.30 and later CID file includes all data attributes
of the target IED, control blocks and settings, and completely re-programs the receiving device. UR 7.30 and later
devices also accept a CID file from a third-party configuration tool provided that the CID file is derived from a UR ICD
file and contains the elements of the ICD file, possibly with modified settings. Supported file transfer formats are SFTP
and 61850 MMS, where a "put" command cannot be used for FTP for security reasons and the port number can be set
as per the settings in the Instruction Manual.
Summary of Contents for UR series
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Page 20: ...1 14 UR SERIES COMMUNICATIONS GUIDE FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1...
Page 216: ...2 196 UR SERIES COMMUNICATIONS GUIDE MEMORY MAP CHAPTER 2 MODBUS COMMUNICATION 2...
Page 428: ...A 2 UR SERIES COMMUNICATIONS GUIDE REVISION HISTORY APPENDIX A MISCELLANEOUS A...
