7.2 Transmission Path Diagnosis Information
Unified Controller nv-pack series TC-net 100(JTNI)Extended card Instruction Manual
7.2 Transmission Path Diagnosis Information
7.2.1 Configuration of the scan data healthy map
The scan data healthy map is managed in the configuration as shown in Figure
7-5.
The scan data healthy map shows the state information of the corresponding
scan data blocks.
Bit “1” The scan data of the corresponding scan block is healthy.
Bit “0” Unhealthy
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 OFF when an unhealthy state of the block is detected.
Unhealthy detection condition: An unhealthy state is detected if no scan data
of the block is received within the diagnosis
time determined based on the scan sending
cycle set for the block.
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).
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
・
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
BL
2047
2046
2045
2044
2043
2042
2041
2040
2039
2038
2037
2036
2035
2034
2033
2032
(Note )BL 25 shows scan block No.25
Figure 7-5 Configuration of Scan healthy map