Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 209)

8–7 Using the Trend Features
Publication 1336 FORCE–5.18 ––March, 1999
The trending operation has five associated states (refer to Figure 12.1
for an illustration of the trending operation cycle.):
Number This Operator: Compares:
0 Unprogrammed Trending is not operational
1 Stopped
No data samples are being taken and output contains the data
samples that have been taken for the previous trending
2 Running
The trigger condition has not been reached and data samples are
being taken at the specified rate. Output contains the data samples
from the previous trend.
3 Triggered
The trigger condition has occurred and the post samples are being
taken.
4 Forced Triggered
The trigger condition was forced so that the post samples could be
taken.
Figure 8.1
Trending Operation Cycle
Running Stopped
Forced Trigger
Trigger Tripped
Enabled
Last post sample gathered
and one shot mode
Last post sample gathered
and one shot mode
Programmed trigger
condition is true
Last post sample
gathered and
continuous mode
Last post sample
gathered and
continuous mode
Trend Select
set to 2.
1.
For the status of Trend: See:
1 Parameter 462
2 Parameter 472
3 Parameter 482
4 Parameter 492
Trending Status