Emerson Rosemount OCX 8800, Instruction Manual

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Instruction Manual
IM-106-880C, OI
Section 7: Foundation
Fieldbus
April 2017
Arithmetic (ARTHM) Function
Block
15
1
Index
Number
Parameter Units Description
8 OUT EU of OUT_SCALE or
Percent or EU of IN The analog output value and status. The number of outputs is an extensible
parameter in some blocks.
33 OUT_HI_LIM EU of OUT_SCALE
Supplied by IN
34 OUT_LO_LIM EU of OUT_RANGE or
Supplied by IN
The maximum output value allowed.
The minimum output value allowed.
11 OUT_RANGE None Range of the output.
9 PRE_OUT EU of OUT The pre-trip limit from SP or zero.
7 PV EU of OUT or EU of
PV_SCALE The process variable used in block execution and alarm limit detection.
10 PV_SCALE None The high and low scale values, engineering units code, and number of digits
to the right of the decimal point associated with OUT.
19 RANGE_HI None The high limit for IN.
20 RANGE_LO None The low limit for IN. If IN is less than RANGE_LO, then IN_LO is used.
3 STRATEGY None The strategy field can be used to identify grouping of blocks. This data is not
checked or processed by the block.
1 ST_REV None The revision level of the static data associated with the function block. The
revision value will be incremented each time a static parameter value in the
block is changed.
2 TAG_DESC None The user description of the intended application of the block.
35 UPDATE_EVT None This alert is generated by any changes to the static data.