149
17
IS (SIGSEL) Function Block
General
The signal selector block provides selection of up to four inputs and generates an output
based on the configured action (Figure 66). This block normally receives its inputs from AI
blocks. The block performs maximum, minimum, middle, average and
first good
signal
selection.
Figure 66
Inputs/Outputs of IS (SIGSEL) Function Block
With a combination of parameter configuration options the block can function as a rotary
position switch, or a validated priority selection based on the use of the first good parameter
and the disable_n parameter (Figure 67). As a switch, the block can receive switching
information from either the connected inputs or from an operator input. The block also
supports the concept of a middle selection. Although the normal configuration for this
feature would be with three signals, the block should generate an average of the middle two
if four signals are configured or the average of two if three are configured and a bad status
is passed to one of the inputs. Logic is provided for handling uncertain and bad signals in
conjunction with configured actions. The intended application of this block is to provide
control signal selection in the forward path only, therefore, no back calculation support is
provided. SELECTED is a second output that indicates which input has been selected by
the algorithm.
Summary of Contents for FVP110
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Page 97: ...81 Dimensions Standard Specifications Dimensions Figure 46 Single Acting Actuator Dimensions ...
Page 99: ...83 Dimensions Standard Specifications Figure 48 Terminal Configuration ...
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Page 115: ...99 View Object Configuration Table 11 View Object for Transducer Block continued ...
Page 117: ...101 View Object Configuration Table 18 View Object for AO Function Block ...
Page 119: ...103 View Object Configuration Table 20 View Object for OS Function Block ...
Page 121: ...105 View Object Configuration Table 22 View Object for Resource Block ...
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Page 238: ...FVP 110 Fieldbus Valve Positioner Manual 222 GE Energy Table 72 LM Parameter Part List ...
Page 239: ...223 LM Parameter List Link Master Functions ...
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Page 262: ...FVP 110 Fieldbus Valve Positioner Manual 246 GE Energy Table 85 Download Error Codes ...
Page 265: ...249 Comments on System Network Software Download Table 88 DOMAIN_DESCRIPTOR ...
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Page 289: ...273 H Customer Maintenance Parts List ...
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