Rockwell Automation 1757-FFLD Linking Device Configuration Manual - Manual (Page 43)

Publication 1757-PM002A-EN-E - June 2006
Basic Function Blocks 3-5
Differences Between
Configuration and
Calibration Definition of Calibration
Calibration is the process of adjusting certain device parameters in order that
the physical quantities measured meet an established standard for accuracy.
Calibration Parameters in the Transducer Block
Transducer Blocks are used to configure devices. Transducer Blocks decouple
Function Blocks from the local input/output functions required to read
sensors and command output hardware. They contain information such as
calibration data and sensor type. Calibration parameters are located in the
Transducer Function Block because the Transducer Function Block is the
interface between the physical measuring unit (I/O Subsystem) and the other
function blocks.
Definition of Configuration?
Configuration is the process of setting parameters in function blocks so that
information processed from the I/O Subsystem in the Transducer Block is
made available to other function blocks.
Relationship of the Transducer to Other Input Function Blocks
Input
Transducer
Block
Manufacturer
Specific
I/O
Subsystem
Channel
Input Snap of
Transducer
Block
Outputs
Output
Parameters Block
Algorithm