Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 228)

Publication 1757-UM006A-EN-P - May 2002
A-48 Standard Function Block Parameters
Table A.128 TRK_VAL
Uxxx Blocks Table A.129 UPDATE_EVT
Valid Views VIEW_4
Storage Static
Remarks The Data type consists of data that describes floating point values for display
purposes. It uses the following four elements.
•1 Engineering Units at 100 percent
•2 Engineering Units at 0 percent
•3 Units Index
•4 Decimal Point
Classification Record
Description Represents the input value for external tracking.
FF Data Type DS-65
Usage I/Input
Length 5
Valid Views VIEW_1, VIEW_3
Storage Non-Volatile
Remarks Read Only
The data type consists of the value and status of floating point parameters
that are Inputs or Outputs. It uses the following two elements.
• Status
• Value
Classification Record
Description Represents an alert generated by any change to the static data.
FF Data Type DS-73
Usage C/Event Update
Length 1, 4
Storage Dynamic
Remarks Read Only
The data type consists of data that describes a static revision alarm. It uses
the following five elements.
• Unacknowledged
• Update State
•Time Stamp
• Static Revision
• Relative Index