SCALE IN RSLOGIX 5000 / STUDIO 5000
How to use Scaling function for analog. Rslogix 5000 / Studio 5000 Function block diagram.
The scale instruction (SCL) instruction converts an unscaled input value to a floating point value in engineering units.
This instruction is not available in ladder diagram logic. The controllogix scale with parameters only works with function block diagram (FBD) and structured text (ST).
For scaling in Logix5000 or Compactlogix analog input scaling this instruction can be used as follows:
1- In the Controller Organizer, create scale as a FB routine under MainProgram.
2- To execute scale FB routine, add this rung to MainRoutine.
3- In scale FB routine, add a SCL block.
4- Add the input and output references and wire them.
5- Click on the ellipse button and check the following boxes. (Define the InRawMax, InRawMin, InEUMax, InEUMin).
For Scale with Parameters for Allen-Bradley SLC 500 SCP, I recomend this link: https://www.courses.psu.edu/e_met/e_m...
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MANUALS
LOGIX 5000 Controllers General Instructions Reference Manual: https://literature.rockwellautomation...
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Softwares used:
RSLogix 5000 or Studio 5000, RSLinx Classic and RSLogix Emulate 5000.
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