Analog I/O
Signal Scaling Calculator
Analog I/O
Input
Signal type
Signal Value (mA)
Eng. units min
Eng. units max
Units label
Output
Eng. value
—
% of span
—
Common Signal Types
| Signal | Live zero |
|---|---|
| 4–20 mA | yes |
| 0–20 mA | no |
| 0–10 V | no |
| 2–10 V | yes |
| 0–5 V | no |
| 1–5 V | yes |
"Live zero": a broken wire reads below-range and faults, not as a valid 0%.
Input
Signal type
Eng. value
Eng. units min
Eng. units max
Output
Signal output
—
% of span
—
Common Signal Types
| Signal | Live zero |
|---|---|
| 4–20 mA | yes |
| 0–20 mA | no |
| 0–10 V | no |
| 2–10 V | yes |
| 0–5 V | no |
| 1–5 V | yes |
"Live zero": a broken wire reads below-range and faults, not as a valid 0%.
Input — two IO pairs
x₁ (raw)
y₁ (eng.)
x₂ (raw)
y₂ (eng.)
Output — y = mx + b
Slope (m) — scale factor
—
Offset (b) — intercept
—