Toshiba Vm Series Instruction Manual page 78

Chapter 7 Application Interface
7.2.2 Configuration of the scan data unhealthy map
The scan data healthy map is managed in the configuration as shown in Figure
7-6.
The scan data healthy map shows the state history information of the
corresponding scan data blocks.
In the scan data healthy map information, the information of the block is ON
when a healthy state of the block is detected, and the information of the block is
not OFF when an unhealthy state of the block is detected.
Unhealthy detection condition: An unhealthy state is detected if no scan data of
The diagnosis time is set to 500ms if the value four times the scan sending
cycle is less than 500ms. If it is greater than 500ms, the diagnosis time is set
to the value four times the scan sending cycle (rounded up to the nearest
10ms) (three cycles are diagnosed).
The scan data unhealthy map indicates whether the block has become
unhealthy one or more times after the scan data unhealthy map is cleared to
zero.
F
BL BL BL
15 14 13
BL BL BL
31 30 29
BL BL BL
2031 2030 2029
BL BL BL
2047 2046 2045
(Note) BL 25 shows scan block No.25
64
6F8C1637
Bit "1" The scan data of the corresponding scan block was unhealthy
before.
Bit "0" not unhealthy before
Note
 When clearing the scan unhealthy map to zero, be careful not to clear other areas by
mistake.
BL BL BL BL
12 11 10 9
BL BL BL BL
28 27 26 25
BL BL BL BL
2028 2027 2026 2025
BL BL BL BL
2044 2043 2042 2041
.
Figure 7-6 Configuration of scan data unhealthy map
the block is received within the diagnosis time
determined based on the scan sending cycle
set for the block.
8 7
BL BL BL BL
8 7 6 5
BL BL BL BL
24 23 22 21
・
・
・
BL BL BL BL
2024 2023 2022 2021
BL BL BL BL
2040 2039 2038 2037
BL BL BL BL
4 3 2 1
BL BL BL BL
20 19 18 17
BL BL BL BL
2020 2019 2018 2017
BL BL BL BL
2036 2035 2034 2033
0
BL
0
BL
16
BL
2016
BL
2032