Allen-Bradley LOGIX 5000 Reference Manual page 129

Process Control Instructions
Structured Text
Condition/State
Prescan
Normal Execution
Postscan
Example
The SCL instruction is typically used with analog input modules that do not
support on-board scaling to floating point engineering units. In this example, the
SCL instruction scales an analog input from a 1771-IFE module. The instruction
places the result in Out, which is used by an ALM instruction.
Function Block
Structured Text
SCL_01.In := Input0From1771IFE;
SCL(SCL_01);
ALM_01.In := SCL_01.Out;
ALM(ALM_01);
See also
Common Attributes
Structured Text Syntax
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Action Taken
See Prescan in the Function Block table.
See Tag.EnableIn is true in the Function Block table.
See Postscan in the Function Block table.
on page 537
on page 508
Chapter 1
129