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11. Appendix B
11.1. Standard Function Block Parameters
SP_D
Classification
Description
FF Data Type
Range
Usage
Length
Valid Views
Storage
Remarks
SP_HI_LIM
Classification
Description
FF Data Type
Range
Usage
Length
482
Experion PKS Series A Fieldbus Interface Module User's Guide
Record
Defines the set point of any discrete block.
DS-66
PV_STATE
C/Set point
2
VIEW_1, VIEW_3
Non-Volatile
SP (SP_D) is normally written by an operator occasionally
while in Auto mode. It is not intended to be written as a
cascade setpoint input. Instead, a connection to CAS_IN is
intended to provide a value into SP (SP_D) when in Cas
mode and a write into RCAS_IN is intended to provide a
value into SP (SP_D) when in RCas mode. However, SP
(SP_D) may be updated when operating in ROut mode in
order to provide a reasonable setpoint, if failing from ROut
to Auto mode upon a failure of the ROUT_IN update.
The data type consists of the value and status of discrete
value parameters. It uses the following two elements.
1 Status
2 Value
Simple Variable
Defines the high limit for set point entry.
Float
PV_SCALE +/- 10 percent
C/Contained
4
Honeywell
R400
July 2010
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