B.2
SEL-2701 Ethernet Processor Instruction Manual Date Code 20020501
UCA2 GOMSFE Models
GOMSFE Tables
GOMSFE Tables
The GOMSFE model table column headings are defined in Table B.1. Some
items in the Decode Method column contain reference to special translation
rules listed in Table B.18 on page B.29.
The Decode Method column contains rules for retrieving information from the
host database. The SEL-2701 uses labels to retrieve database values within the
specified region. For SEL devices connected to an SEL-2030, the data are
typically in data regions (Meter, Target, etc.). Use “20” messages to configure
the SEL-2030 to automatically collect, store, and label data in data regions.
For example, if the decode method is METER:VA then the value retrieved is
A-phase voltage, labeled VA, in the Meter region. For non-SEL devices, the
region is usually the User region. Use SET M equations to move and label
data within the User region.
Some items have more than one decode method. If there is more than one
decode method, they are listed in priority order. In some cases, additional
information about the decode method is listed in Special Translation Rules on
page B.29. Look up the rule number (for example #3) in Table B.18 for more
information. Some information has been hard coded and does not rely on a
data lookup. For example, the protocol value Pro in the DI model (listed in
Table B.4 on page B.4) always contains the value 11.
Table B.1 GOMSFE Model Table Column Definitions
Column Label Definition
FC Functional Component
Name Name of element or compound element–names of elements within
compound elements indented
r/w Read/write permission
Description Description of data as implemented by SEL
m/o Mandatory/optional m–label is present, data are shown if available,
value is null if not available o–label is present only if data are avail-
able in the host
Decode Method Value or label used to retrieve information in device database or refer-
ence to Table B.18
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