9-4
Database
Date Code 20010518
SEL-2020 Instruction Manual
register of the two. (See Figure 9.2 for an illustration of how these data types map into the
registers.) You can use the VIEW and MAP commands to identify the data storage format and
see the stored data. You can use message strings in an auto-message to transfer the data from the
SEL-2020 to another device in virtually any format. See
Section 8: Message Strings
for more
detailed information.
register n+1
register n
high-byte
low-byte
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
bit
char
0
int
high-word of float
low-word of float
DWG: M1006
Figure 9.2: Register Usage for Different Data Types
R
EGION
D
ESCRIPTIONS
Global Data Region (GLOBAL)
The Global data region includes the following data that are common to all ports: SEL-2020 FID
string, status and configuration information, date and time, global element bits, and Port F status
(see Table 9.2, Table 9.3, and Table 9.4). Each port database contains the same information in
this region (e.g., 1:GLOBAL is the same as 2:GLOBAL).
Table 9.2: Global Data Region
Starting
Address
Data Item Label
Data Type
Notes
0000h FID
char[40] Read-only.
0028h
STATUS
int
Bit for each type of failure; read-
only. See Global Status Register
subsection following this table.
0029h
CONFIG
int
Indicates SEL-2020 hardware
configuration; read-only. See
Configuration Register subsection
following this table.
002Ah _YEAR
int
i.e.,
1994.
002Bh
DAY_OF_YEAR
int
1 through 365.
002Ch
MONTH
int
1 through 12.
Summary of Contents for SEL-2020
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