Schweitzer Engineering Laboratories SEL-2020 - Section 2: General Description;Section 2: General Description

Date Code 20010518 General Description i
SEL-2020 Instruction Manual
TABLE OF CONTENTS
SECTION 2: GENERAL DESCRIPTION 2-1
Introduction...................................................................................................................................2-1
Basic (But Powerful) Functions....................................................................................................2-1
Intelligent Port Switch ..................................................................................................................2-2
Sixteen EIA-232 Rear Ports and One EIA-232 Front Port....................................................2-2
Multi-Tasking/Multi-User Operating System .......................................................................2-2
Who’s Who Port Directory ...................................................................................................2-2
Multi-Level Password Security.............................................................................................2-2
Auto-Configuration ...............................................................................................................2-3
Synchronizing Time Source..........................................................................................................2-3
Accepts External IRIG-B Input .............................................................................................2-3
Generates IRIG-B Internally .................................................................................................2-3
Distributes IRIG-B through Ports 1-16 .................................................................................2-3
Communications Processor...........................................................................................................2-3
Send Messages Triggered by SELOGIC
®
Control Equations.................................................2-3
Receive Messages and Data ..................................................................................................2-4
Unsolicited Messages....................................................................................................2-4
Solicited Messages and Data.........................................................................................2-4
SELOGIC Control Equations Programmable Controller ...............................................................2-5
Automatic Database ......................................................................................................................2-6
Database Structure ................................................................................................................2-6
Global Region................................................................................................................2-6
Local Region .................................................................................................................2-7
BUF Region...................................................................................................................2-9
D1 to D8 Regions ........................................................................................................2-10
A1 to A3 Regions ........................................................................................................2-10
User Region.................................................................................................................2-10
Database Tools ....................................................................................................................2-10
AUTO ..........................................................................................................................2-11
MAP ............................................................................................................................2-11
VIEW...........................................................................................................................2-11
TARGET .....................................................................................................................2-11
STATUS ......................................................................................................................2-11
MEM............................................................................................................................2-11
Data Parsing Options...........................................................................................................2-11
“20” Message Response ..............................................................................................2-12
Non-“20” Message Response ......................................................................................2-12
Simple Settings............................................................................................................................2-12
SET G - Global Settings......................................................................................................2-12
SET P - Port Configuration Choices (Ports F, 1-16)...........................................................2-12
U (Unused) ..................................................................................................................2-13
S (SEL IED).................................................................................................................2-13
O (Other IED)..............................................................................................................2-13
P (Printer) ....................................................................................................................2-13
M (Master)...................................................................................................................2-13