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 0bit
char0
int
high-word of float
low-word of float
DWG: M1006
Figure 9.2: Register Usage for Different Data Types
REGION DESCRIPTIONS
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.
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