Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 214)

Publication 1757-UM006A-EN-P - May 2002
A-34 Standard Function Block Parameters
Rxxx Blocks Table A.91 RA_FTIME
Table A.92 RATE
Table A.93 RCAS_IN
Classification Simple Variable
Description Defines the time constant of a single expotential filter for the value to be
ratioed in seconds.
FF Data Type Float
Range Positive
Usage C/Contained
Length 4
Valid Views VIEW_4
Storage Static
Classification Simple Variable
Description Defines the derivative time constant in seconds.
FF Data Type Float
Range Positive
Usage C/Contained
Length 4
Valid Views VIEW_4
Storage Static
Classification Record
Description Represents target setpoint and status provided by a supervisory host to the
analog control or output block.
FF Data Type DS-65
Usage C/Remote-Cascade In
Length 5
Valid Views VIEW_3
Storage Non-Volatile
Remarks 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