Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 216)

Publication 1757-UM006A-EN-P - May 2002
A-36 Standard Function Block Parameters
Table A.97 READBACK
Table A.98 READBACK_D
Valid Views VIEW_3
Storage Dynamic
Remarks Read Only
The data type consists of the value and status of discrete value parameters. It
uses the following two elements.
• Status
• Value
Classification Record
Description Represents the “readback” of the actual continuous valve or other actuator
position in transducer units.
FF Data Type DS-65
Usage C/Contained
Length 5
Valid Views VIEW_1, VIEW_3
Storage Dynamic
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 the "readback" of the actual discrete valve or other actuator posi-
tion in the transducer state.
FF Data Type DS-66
Usage C/Contained
Length 2
Valid Views VIEW_1, VIEW_3
Storage Dynamic
Remarks Read Only
The data type consists of the value and status of discrete value parameters. It
uses the following two elements.
• Status
• Value