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Trend Object
Configuration
Trend Object
You can set the parameter so that the function block automatically transmits Trend.
FVP110 has seven non-factory set Trend objects, five for analog data, and two for
discrete data. A single Trend object specifies the trend of one parameter.
Each Trend object has the parameters listed in Table 16. The first four are settable.
View Object
This is the object to form groups of parameters in a block. One of advantages brought
by forming groups of parameters is the reduction of load for data transaction. FVP110
has 12 View objects for Transducer block and four View objects for each Resource, AO
and DI1 and DI2 function block, and each View object has the parameters listed in
Table 17 to Table 22.
Table 16 Execution Schedule of the FVP110 Function Blocks
Sub-index Parameters Description
1 Block Index
Sets the leading index of the function block that
takes a trend.
2 Parameter Relative Index
Sets the index of parameters taking a trend by
a value relative to the beginning of the function
block.
3 Sample Type
Specifies how trends are taken. Choose one:
1: Sampled on function block execution.
2: The average value is sampled.
4 Sample Interval
Specifies sampling intervals in units of 1/32 ms.
Sets the integer multiple of the function block
execution cycle.
5 Last Update The last sampling time.
6 to 21 List of Status Status part of a sampled parameter.
21 to 37 List of Samples Data part of a sampled parameter.
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