Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 179)

6–37 Parameters
Publication 1336 FORCE–5.18 ––March, 1999
456 Trend 1 Operand Parameter Y
[Tr1 Opnd Parm Y]
Tr1 Opnd Parm Y specifies the second of two
parameter numbers used for the trend trigger
evaluation. The data value for the entered link
parameter number is used in the trigger evaluation.
Parameter Number 456
Parameter Type Read/Write, Sink
Display Units / Drive Units Dependent on Link➀
Factory Default 0
Minimum Value –32767➀
Maximum Value +32767➀
File – Group Diagnostics – Trend Setup
➀ These values depend on the source parameter that this parameter is linked to.
For example, if the source parameter’s drive units are rpm, then Tr1 Opnd Parm Y’s
drive units will be displayed in rpm. The minimum and maximum values are also
link dependent.
457 Trend 1 Operator
[Tr1 Operator]
Tr 1 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 457
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
458 Trend 1 Sample Rate
[Tr1 Sample Rate]
Tr1 Sample Rate specifies the interval at which the
data in the Trend In 1 parameter is sampled. It is
programmable in 2 millisecond increments. All
values are rounded down to the nearest 2
millisecond interval.
Parameter Number 458
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
459 Trend 1 Post Samples
[Tr1 Post Samples]
Tr1 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 459
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