Industrial Engineer · phase 2 of 16 · noun

Raw Counts

Unscaled numeric value produced by an analog converter before conversion to engineering units.

The Explain card

Plain English
Raw counts are the number the analog card produces before anyone tells it what the number means. A 16 bit card might report anything from 0 to 32767 for its full range.
Example
A 4 to 20 mA input shows 6553 counts at 4 mA and 32767 at 20 mA. The program has to turn 19660 counts into 50 percent, or 150 degrees, or whatever the sensor measures.
Why it matters
Looking at raw counts tells you whether the wiring and the card are working, separate from whether the scaling is right. A stuck count means hardware, and a wrong engineering value with a moving count means math.
Hook
The number before the meaning.

Word knowledge

How the word is built, where it came from, and what it sits beside in memory.

In a sentence

The technician recorded 12,480 raw counts from the analog input module before checking the channel scaling in the PLC.

Why these words
  • raw Old English hrēaw, uncooked marks the counts as unprocessed
  • counts Old French conter, from Latin computare, calculate names the plural numerical readings
Where it came from
Origin
English technical compound formed from raw and the plural noun counts
Entered the language
20th century
What changed
Raw broadened from uncooked material to unprocessed information, while count extended from tallying items to naming numerical readings in electronic systems.
How it is spelled
Pattern
The aw in raw follows the spelling pattern seen in words with the broad vowel sound.
Pattern
Counts adds the regular plural ending -s to count.

Spelled like

  • law
  • saw
  • readings
  • values
Broken into chunks
  • raw
    • raw data
    • raw value
  • count
    • counter
    • recount
  • s
    • readings
    • values
What it sits beside

Same subject

  • analog input
  • engineering units
  • scaling
  • analog-to-digital converter
  • PLC tag

Same shape

  • raw data
  • raw value
  • pulse counts

analog signal terms

PLC data-processing terms

Where it sits in the deck

Phase 2: PLC I/O and Field Signals

Where the controller meets the machine: discrete and analog signals, the wiring conventions behind them, and the field devices that send them.