Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 187)

6–45 Parameters
Publication 1336 FORCE–5.18 ––March, 1999
489 Trend 4 Post Samples
[Tr4 Post Samples]
Tr4 Post Samples specifies the number of data
samples to be gathered once the trigger evaluation
becomes true. There is always a sample reserved
for the instance when the trigger condition becomes
true.
Parameter Number 489
Parameter Type Read/Write, Non–Linkable Sink
Display Units / Drive Units None
Factory Default 15
Minimum Value 0
Maximum Value 499
File – Group Diagnostics – Trend Setup
490 Trend 4 Continuous Trigger
[Tr4 Cont Trigger]
Tr4 Cont Trigger specifies the type of trend. You can
choose either 0 for one–shot or 1 for continuous.
With a one–shot trend, once the trigger condition is
true and the number of samples after the trigger is
taken are gathered, the trend stops.
With a continuous trend, once the trigger condition is
true and the number of samples after the trigger is
taken are gathered, the trend continues looking for
the next occurrence of a true trigger condition.
Parameter Number 490
Parameter Type Read/Write, Non–Linkable Sink
Display Units / Drive Units None
Factory Default 0
Minimum Value 0
Maximum Value 1
File – Group Diagnostics – Trend Setup
491 Trend 4 Select
[Tr4 Select]
Tr4 Select specifies the trend mode. The states are
as follows:
0 Disable the trend.
1 Enable the trend.
2 Force a true trigger condition.
Parameter Number 491
Parameter Type Read/Write, Non–Linkable Sink
Display Units / Drive Units None
Factory Default 0
Minimum Value 0
Maximum Value 2
File – Group Diagnostics – Trend Setup
Enums 0 = Disable 1 = Enable 2 = Force Trig
492 Trend 4 Status
[Tr4 Status]
Tr4 Status identifies which state the trend is
currently in. The following states are possible:
1 Stopped Trending is not executing.
2 Running Trending is executing, but the trigger
point has not yet been reached.
3 Tripped/Trigger Trending is executing, and the trigger
point has been reached.
4 Tripped/Forced The trigger point was forced.
Parameter Number 492
Parameter Type Read Only, Non–Linkable Source
Display Units / Drive Units None
Factory Default 1
Minimum Value 1
Maximum Value 4
File – Group Diagnostics – Trend I/O
Enums 1 = Stopped 2 = Running
3 = Trip Trig 4 = Force Trip