PLC glossary
Raw value
The number an input card gives the PLC before scaling. It means nothing to an operator until it is converted.
- Also called
- raw counts, input counts
- On site
- A level transmitter's 12 mA arrives as 13824 counts on an S7-1500 input.
- Siemens
- S7-1500 inputs set to 4–20 mA use 0 to 27648 counts for the normal range.
- Rockwell
- Logix modules can report raw counts, or scale them to mA or engineering units in the module.