Schweitzer Engineering Laboratories SEL-2020 - Nonvolatile Flash Memory Usage Estimation

E-2 Appendix E Date Code 20010518
SEL-2020 Instruction Manual
CALCULATE MEMORY USAGE
Nonvolatile Flash Memory Usage Estimation
The total nonvolatile Flash memory available for archive storage is 8192 blocks. (A block is 256
bytes.) Table E.1 shows the memory requirements for various types of data. Each item requires
one to five blocks of overhead, plus 1/7 to 240 blocks per record stored, as indicated in the table.
Table E.1: “20” Message Archive Requirements in Blocks
Relay Meter
Fast
Meter Demand Target Status Breaker History EVENT EVENTS EVENT
L
49
1
3
2n+
--- --- --- 2n+1 --- n+2 11n+3 25n+1 ---
121
1
3
2n+
--- ---
1
6
1n +
2n+1 --- 2n+2 11n+3 25n+1 ---
121-10
1
3
2n+
n+4 ---
1
7
1n +
2n+1 --- 2n+2 11n+3 25n+1 ---
121B
1
3
2n+
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
121C
1
3
2n +
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
121D
1
4
2n +
--- ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
121F
1
3
3n +
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
121G
1
3
2n+
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
121H
1
3
2n+
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
121S
1
3
2n+
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
151
1
3
3n+
n+4
1
3
2n+
1
6
1n +
2n+1
1
2
3n+
3n+2 11n+3 25n+1 ---
151C
1
3
3n +
n+4
1
3
2n+
1
6
1n +
2n+1
1
2
3n+
3n+2 11n+3 25n+1 ---
151CD
1
4
2n+
n+3
1
3
2n+
1
6
1n +
2n+1
1
2
3n+
3n+2 11n+3 25n+1 ---
151D
1
4
2n+
n+3
1
3
2n+
1
6
1n +
2n+1
1
2
3n+
3n+2 11n+3 25n+1 ---
167
1
3
3n +
---
1
3
3n+
1
7
1n+
2n+1 --- 3n+2 11n+3 25n+1 ---
167D
1
3
2n+
n+3
1
3
2n+
1
7
1n+
2n+1 --- 3n+2 11n+3 25n+1 ---
187V
1
3
2n+
--- ---
1
6
1n +
2n+1 --- 3n+2 12n+3 25n+1 ---
279
1
3
2n+
--- ---
1
7
1n+
2n+1
1
4
2n+
--- --- --- ---
279H
1
3
2n+
--- ---
1
6
1n +
2n+1 --- 3n+2 13n+3 25n+1 ---
BFR
1
3
2n+
--- ---
1
7
1n+
2n+1 --- 14n+2 16n+3 48n+1 ---
300G --- n+5
1
2
4n+
1
4
1n+
2n+4 --- 11n+1 31n+4 48n+1 240n+1
PG10
1
3
2n+
n+4 ---
1
7
1n+
2n+1 --- 2n+2 11n+3 25n+1 ---
321
1
3
2n+
n+5 ---
1
3
1n+
2n+1 --- 10n+2 11n+3 48n+1 240n+1
321-1* --- n+3 ---
1
3
1n+
n+3 --- 12n+2 9n+2 48n+1 240n+1
351 --- n+6 n+5
1
3
1n+
2n+4 --- 5n+4 31n+5 48n+1 240n+1
351R --- n+5
1
2
4n+
1
3
1n+
2n+5 --- 7n+3 36n+5 48n+1 240n+1
352 --- 2n+6 ---
1
2
1n+
2n+4 2n+3 5n+3 16n+4 48n+1 240n+1
387 --- n+4 n+3
1
4
1n+
2n+5
1
2
4n+
32n+3 22n+4 48n+1 240n+1
501
1
5
2n+
n+3***
1
5
2n +
1
6
1n +
2n+1
1
3
3n+
4n+2 14n+3 48n+1 ---
551 ---
1
3
2n+
---
1
7
1n+
n+3 --- 5n+2 17n+3 48n+1 ---
587 --- n+4
1
3
2n +
1
6
1n +
n+4** --- 4n+2** 23n+5** 48n+1** ---