Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 142)

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Publication 1336 FORCE–5.13 –– September, 1998
477 Trend 3 Operator
[Tr3 Operator]
Tr3 Operator specifies the operator used for the
trend trigger evaluation. The available operators
are:
Value Description
1 Greater Than (.GT.)
2 Less Than (.LT.)
3 Equals (.EQ.)
4 Not Equals (.NE.)
5 Logical AND (.AND.)
6 Logical NAND (.NAND.)
7 Logical OR (.OR.)
8 Logical NOR (.NOR.)
Parameter Number 477
Parameter Type Read/Write, Non–Linkable Sink
Display Units / Drive Units None
Factory Default 5
Minimum Value 1
Maximum Value 8
File – Group Diagnostics – Trend Setup
478 Trend 3 Sample Rate
[Tr3 Sample Rate]
Tr3 Sample Rate specifies the interval at which the
data in the Trend In 3 parameter is sampled. It is
programmable in 2 millisecond increments. All
values are rounded down to the nearest 2
millisecond interval.
Parameter Number 478
Parameter Type Read/Write, Non–Linkable Sink
Display Units / Drive Units Seconds
Factory Default 0.020 Seconds
Minimum Value 0.002 Seconds
Maximum Value 30 Seconds
File – Group Diagnostics – Trend Setup
479 Trend 3 Post Samples
[Tr3 Post Samples]
Tr3 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 479
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
480 Trend 3 Continuous Trigger
[Tr3 Cont Trigger]
Tr3 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 480
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