Schweitzer Engineering Laboratories SEL-421-4 - Logical Nodes

17.29
Date Code 20171006 Instruction Manual SEL-400 Series Relays
IEC 61850 Communication
Logical Nodes
SEL ICD File Versions
Architect version 1.1.69.0 and higher supports multiple ICD file versions for
each IED in a project. Because relays with different firmware may require differ-
ent CID file versions, this allows users to manage the CID files of all IEDs within
a single project.
Ensure that you work with the appropriate version of Architect relative to your
current configuration, existing project files, and ultimate goals. If you desire the
best available IEC 61850 functionality for your SEL relay, obtain the latest ver-
sion of Architect and select the appropriate ICD version(s) for your needs. Archi-
tect generates CID files from ICD files so the ICD file version Architect uses also
determines the CID file version generated.
As of this writing, Architect comes with several versions of relay ICD files. ICD
file descriptions in Architect indicate the minimum firmware versions required to
use that particular file. Unless otherwise indicated, ICD files will work with firm-
ware higher than the firmware in the description. but not with lower firmware
versions.
See Appendix A: Firmware, ICD File, and Manual Versions in the product-spe-
cific instruction manual for a list of ICD versions and corresponding firmware
versions.
Logical Nodes
Each logical device (LD) has a set of common data objects at the top level LN0.
These represent the current state of the device, as well as some informational
data. These data objects are: Mod (Mode), Beh (Behavior), Health, and NamPlt.
See below for a brief description of each object.
Mode
SEL-400 series relay includes at the top-level LN0 within each LD the following
enumerations for Mod stVal:
The top-level logical node of each LD also includes the following Mod attributes:
Mod q and Mod t per the Time Stamps and Quality subsection.
Mod ctlModel enumeration 0 (Status-only).
Behavior
SEL-400 series relay LNs include the following enumerations for Beh stVal:
Mod stVal Enumeration Mod stVal Value Description
1 on EN Relay Word bit = 1
5 off EN Relay Word bit = 0
Beh stVal Enumeration Beh stVal Value Description
1 on EN Relay Word bit = 1
5 off EN Relay Word bit = 0