Cassandra 650 Test Data Constants

Cassandra 650 Test Data

Path: src/modbus/cassandra650_testdata.h

Revision History:

• 2025-05-01: Initial verified version with full equation markup.

This header file provides verified test data constants for the Cassandra 650 hot-plate system, serving as a reference for simulation, testing, and validation of the hot-plate control system.

The constants follow specific notation:

• Values ending in _X100 are stored multiplied by 100 (e.g., 1.25 becomes 125)
• Dimensions are in millimeters unless otherwise noted
• Time units: s = seconds, min = minutes
• Frequency: mHz = milli-hertz (10⁻³ Hz)

REQUIREMENTS

• No specific hardware pins required as this is a constants-only header
• Compatible with C17 standard
• ESP-32 platform as target

PROVIDES

• Heat-plate geometry constants: Dimensions of the heat plate
• Heater configuration constants: Specifications for the heating elements
• Cooling performance constants: Natural cooling rates
• Temperature-loop precision constants: Control precision specifications
• Oscillation constants: Timing parameters for temperature holding
• Heating performance constants: Rate of temperature increase under different conditions
• Derived thermodynamic properties: Calculated constants based on measured data
• Sequential heating constants: Parameters for multi-partition heating systems

FEATURES

• Comprehensive set of validated constants for the Cassandra 650 hot-plate system
• Clear organization of constants by functional category
• Documented equations showing relationships between constants
• Scaled values (×100) to maintain precision with integer constants

DEPENDENCIES

None - this is a self-contained constants header

BEHAVIOUR

As a constants header file, this component doesn’t have behavior or state transitions.

TODOS

PERFORMANCE

• Consider adding temperature gradient constants across the plate surface
• Add thermal profile constants for different materials/loads

SECURITY

• No security concerns for constant definitions

COMPLIANCE

• Constants should be verified periodically against actual measurements to ensure continued accuracy
• Consider adding IEC or other industrial standards references for measurement methodologies

RECOMMENDATIONS

• When updating constant values, maintain the equation references to document the relationships
• Consider adding a table or graph representation of heating/cooling curves in documentation
• To extend this module, consider adding constants for:
  • Different material loads (e.g., glass, metal, ceramic)
  • Energy consumption metrics
  • Wear and aging factors