Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 213)

Publication 1757-UM006A-EN-P - May 2002
Standard Function Block Parameters A-33
Table A.89 PV_SCALE
Table A.90 PV_STATE
Qxxx Blocks No Q parameters
Length 4
Valid Views VIEW_4
Storage Static
Classification Record
Description Defines the high and low scale values, engineering units code, and number of
digits to the right of the decimal point to be used in displaying the PV parame-
ter and parameters that have the same scaling as PV.
FF Data Type DS-68
Usage C/Scaling
Length 11
Valid Views VIEW_2
Storage Static
Remarks The Data type consists of data that describes floating point values for display
purposes. It uses the following four elements.
• Engineering Units at 100 percent
• Engineering Units at 0 percent
• Units Index
• Decimal Point
Classification Simple Variable
Description Defines the index to the text describing the states of a discrete PV.
FF Data Type Unsigned 16
Usage C/Contained
Length 2
Valid Views VIEW_2
Storage Static