Description
Reverse a supplied sensor value under an axis flag.
Control terms depend on error sign, units, sample timing, saturation direction and state conventions. Hysteresis retains state between thresholds, while deadband mapping and output clamping describe different operations. A negative loop-sign product or small scalar derivative does not establish closed-loop stability or safe operation.
Reverse a supplied sensor value under an axis flag.
When to use this tool
Use Sensor Reference Frame Sign Choice when you already have sensorValue, reverseAxis and need to reverse a supplied sensor value under an axis flag.
How to use the tool and how it works
- Enter sensorValue, reverseAxis. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read referenceValue. Use the output convention below.
Negate sensorValue when reverseAxis=true, otherwise preserve it.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sensorValue | Sensor Value | Required. Finite number. |
| reverseAxis | Reverse Axis | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| referenceValue | Reference Value | Required. Finite number. |
{
"input": {
"sensorValue": 3,
"reverseAxis": true
},
"output": {
"referenceValue": -3
}
}Limitations and assumptions
- This is a scalar sign convention, not a coordinate-frame rotation, calibration, measurement validation or safe control input.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a complete plant, controller, actuator and timing model with verified operating constraints for control decisions. Check interactions among saturation, integrator state, gains and delays; individual algebraic terms do not tune a controller or validate system stability or safety.
References
Similar or alternative tools
- Error Reference Measurement Sign
Choose a supplied reference-versus-measurement error sign convention.
- Control Reference Unit Dimension Pair
Compare supplied unit and dimension tokens literally.