Vishay 7000 - Page 33

Vishay Micro-Measurements System 7000 Programmer’s Reference Manual
Page 33 of 142
Recorded Scans for Card 2:
Scan data is recorded starting at scan 4. Because the recording type is “continuous” all scans are
recorded until recording stops.
Recorded Scans for Card 3:
Card 3 has a recording type of “singleshot”; only the trip scan is recorded when the reading goes
out of range.
Scan
Number
Card 1
Channel 2
Reading
Card 1
Channel 3
Reading
Card 2
Channel 4
Reading
Card 3
Channel 5
Reading
1 400 100 400
400
2
500 45
500 500
3 800 55 800 800
4
1050 55 1090 1050
5
2000 60 2200
2000
6
3000 50 990
750
7 900 70
900 900
8 600 100
600
950
Table 11
Example 2 – Incremental Limits
Table 12 shows a limit
conditions table with 3 limits
defined.
We have 1 card in our system with a limits type of incremental. The limits recording type is
singleshot. Notice that all 3 limit conditions have been assigned to channel 2. All of the other
channels have the number of
limit conditions set to 0. No
global limits are active.
Table 14 shows the readings that satisfy the limit conditions for the channel in red. The way
incremental limits works is that as soon as the limit condition at index 0 is satisfied, we increment to
the limit condition at index 1, when it is satisfied we move on to the condition at index 2, etc… So, in
this case, we satisfy a limit with a reading of 1050 (greater than 1000), we satisfy the second limit
with a reading of 2500 (greater than 2400), and we satisfy our last limit with a reading of 7000
(greater than 6000).
Index Condition Lower
Limit
Upper
Limit
Pre-Limit
Scans
Post-Limit
Scans
0 Greater Than not used 1000 0 0
1 Greater Than not used 2400 0 0
2 Greater Than not used 6000 0 0
:
None not used not used 0 0
:
None not used not used 0 0
49 None not used not used 0 0
Table 12
Card Channel Limit Condition
Assignment
Recording
type
Number of
Limit Conds
1 Singleshot
2 0, 1, 2 3
Table 13