node-red-contrib-rpo-suite

One-line install for the complete sr.rpo building automation node suite for Node-RED.

v1.4.12 — bundles 63 nodes across 8 palette categories.

Installation

npm install node-red-contrib-rpo-suite

Or via Node-RED Palette Manager: Search for rpo-suite

Palette Categories

• rpo-control — Control & Regulation (10)
• rpo-logic — Logic & Boolean (10)
• rpo-math — Math & Numeric (10)
• rpo-time — Time & Signal (13)
• rpo-hvac — HVAC & Building (10)
• rpo-sensor — Sensors & Physics (4)
• rpo-flow — Flow Control (5)
• rpo-misc — Miscellaneous (1)

Included Nodes (63)

Control & Regulation rpo-control

Feedback control, temperature regulation, and closed-loop algorithms.

| Folder | Package | Description | |--------|---------|-------------| | pid-controller | node-red-contrib-pid-controller-isa | Industrial-grade PID controller using ISA standard algorithm for Node-RED | | pt1 | node-red-contrib-pt1 | PT1 first-order low-pass filter for smoothing noisy measurement values | | i-element | node-red-contrib-i-element | Integral element (I-Glied) with anti-windup for control systems | | heat-curve | node-red-contrib-heat-curve | Node-RED heating curve node - calculates flow temperature setpoint based on outdoor temperature | | thermal-valve | node-red-contrib-thermal-valve | PWM controller for thermal actuator valves - converts 0-100% to timed on/off signal | | three-point | node-red-contrib-three-point | Three-point actuator controller for HVAC dampers and valves | | adaptive-curve | node-red-contrib-adaptive-curve | Self-learning heating curve with room temperature feedback | | optimization | node-red-contrib-optimization | Optimal start time calculator for heating/cooling systems | | setpoint-shift | node-red-contrib-setpoint-shift | Sliding setpoint / heating curve based on outdoor temperature for HVAC systems | | predictive-heating | node-red-contrib-predictive-heating | Predictive outdoor temperature for heating curve control using weather forecast and solar UV correction |

Logic & Boolean rpo-logic

Boolean logic, latches, edge detection, and state comparison.

| Folder | Package | Description | |--------|---------|-------------| | sr-latch | node-red-contrib-sr-latch | Node-RED SR Latch (Set-Reset Flip-Flop) - memory element with set/reset control | | pulse-edge | node-red-contrib-pulse-edge | Node-RED node for edge detection - outputs pulse on rising/falling edge | | ton-toff | node-red-contrib-ton-toff | Node-RED TON/TOFF timer - On-Delay and Off-Delay timer functions | | toggle | node-red-contrib-rpo-toggle | Toggle flip-flop - converts push button to switch (boolean output on every truthy input) | | change-detect | node-red-contrib-rpo-change-detect | Forwards messages only when the value has changed (supports tolerance for numbers) | | edge-filter | node-red-contrib-edge-filter | Edge filter - forwards only first event in a time window (re-trigger protection) | | logic-combiner | node-red-contrib-logic-combiner | Node-RED logic combiner - combines multiple boolean inputs with AND/OR | | hysteresis | node-red-contrib-threshold-hysteresis | Node-RED node for hysteresis logic - outputs boolean based on high/low thresholds | | deadband | node-red-contrib-deadband | Node-RED deadband filter - only passes values when change exceeds threshold | | comparator | node-red-contrib-comparator | Compares two numeric values with configurable operator and outputs boolean result |

Math & Numeric rpo-math

Arithmetic, formulas, scaling, clamping, and statistical calculations.

| Folder | Package | Description | |--------|---------|-------------| | arithmetic | node-red-contrib-arithmetic | Performs arithmetic operations (+,-,×,÷,%,^) on two numeric inputs | | formula | node-red-contrib-rpo-formula | Node-RED formula evaluator - evaluate math expressions with named topic variables | | adder | node-red-contrib-adder | Multi-input adder with optional weighting - sum or weighted average of inputs | | scale | node-red-contrib-scale | Node-RED scale node - maps values from one range to another using linear interpolation | | clamp | node-red-contrib-clamp | Node-RED clamp node - limits values to a min/max range | | difference | node-red-contrib-difference | Node-RED difference calculator - calculates the difference between two numeric inputs | | gradient | node-red-contrib-gradient | Gradient calculator - computes rate of change of numeric values over time | | int-bits | node-red-contrib-int-bits | Integer to bits converter - bidirectional integer and boolean array conversion | | average | node-red-contrib-avg | Node-RED average node - calculates moving average over count or time window | | multi-stat | node-red-contrib-multi-stat | Node-RED multi-source statistics - calculates min/max/avg across multiple topics |

Time & Signal rpo-time

Timers, counters, rate limiting, signal generation, and scheduling.

| Folder | Package | Description | |--------|---------|-------------| | counter | node-red-contrib-rpo-counter | Up/down counter with configurable limits, step, wrap and alarm modes | | limit-counter | node-red-contrib-limit-counter | Limit counter - counts threshold crossings and outputs alarm at configured limit | | ring-counter | node-red-contrib-ring-counter | Ring counter - cycles through N slots sequentially with wrap-around | | debounce | node-red-contrib-rpo-debounce | Debounce filter - waits until input is stable before forwarding message | | rate-limiter | node-red-contrib-rate-limiter | Rate limiter - limits rate of change of numeric values per second/min/hour | | signal-gen | node-red-contrib-signal-gen | Signal generator - sine, square, sawtooth, triangle and random test waveforms | | pwm | node-red-contrib-pwm | PWM generator - converts 0-100% analog value to digital pulse-width signal | | min-on-time | node-red-contrib-min-on-time | Minimum ON time - ensures output stays ON for a minimum duration | | min-off-time | node-red-contrib-min-off-time | Minimum OFF time - anti-short-cycle protection for compressors and motors | | operating-hours | node-red-contrib-operating-hours | Operating hours counter with maintenance alarm for Node-RED | | watchdog | node-red-contrib-rpo-watchdog | Watchdog timer - triggers alarm when no message received within timeout | | time-shift | node-red-contrib-time-shift | Signal time delay / buffer for Node-RED | | weekly-schedule | node-red-contrib-weekly-schedule | Weekly scheduler with configurable time windows per day of week |

HVAC & Building rpo-hvac

Domain-specific nodes for heating, cooling, and building operation modes.

| Folder | Package | Description | |--------|---------|-------------| | heat-quantity | node-red-contrib-heat-quantity | Thermal energy calculator - power and accumulated kWh | | degree-days | node-red-contrib-degree-days | Heating degree days calculator according to SIA 2028 | | frost-protection | node-red-contrib-frost-protection | Frost protection controller for HVAC systems | | free-cooling | node-red-contrib-free-cooling | Free cooling / night cooling recommendation for HVAC systems | | co2-controller | node-red-contrib-co2-controller | CO2-based ventilation controller for HVAC systems (SIA 382.1 / EN 13779) | | standby | node-red-contrib-standby | Operating mode manager: Comfort / Standby / Frost for HVAC | | idle-mode | node-red-contrib-idle-mode | Periodic exercise runner for idle pumps and valves | | priority | node-red-contrib-priority | Priority-based input selector for DDC control (Hand/Remote/Auto) | | sequencer | node-red-contrib-rpo-sequencer | Sequential channel switching with wear leveling for HVAC | | startup | node-red-contrib-startup | Startup sequence with ramp-up and pre/post-run for pumps and fans |

Sensors & Physics rpo-sensor

Psychrometric calculations and sensor-value validation.

| Folder | Package | Description | |--------|---------|-------------| | abs-humidity | node-red-contrib-abs-humidity | Absolute humidity calculator using Magnus formula | | dewpoint | node-red-contrib-dewpoint | Dew point calculator with condensation alarm | | enthalpy | node-red-contrib-enthalpy | Specific enthalpy of moist air with heat recovery recommendation | | sensor-check | node-red-contrib-sensor-check | Sensor plausibility monitor - detects out-of-range values and timeout with fallback output |

Flow Control rpo-flow

Routing, lookup, sorting, storage, and alarm dispatch.

| Folder | Package | Description | |--------|---------|-------------| | multiplexer | node-red-contrib-multiplexer | 8-channel multiplexer - selects and forwards one of N input channels | | lookup-table | node-red-contrib-lookup-table | Linear interpolation lookup table for Node-RED | | sort | node-red-contrib-rpo-sort | Array sorter - sorts arrays numerically or alphabetically with topN support | | mmm-store | node-red-contrib-mmm-store | Min/Max/Mean persistent store - tracks statistics across Node-RED restarts | | alarm-new-val | node-red-contrib-alarm-new-val | New value alarm - signals when a new or changed value is received |

Miscellaneous rpo-misc

Utility nodes that don't fit other categories.

| Folder | Package | Description | |--------|---------|-------------| | age-calculator | node-red-contrib-age-calculator | Node-RED node to calculate age/time alive from a birth date |

Use Cases

• HVAC control systems
• Building automation (GLT)
• Industrial process control
• Sensor data processing
• PLC-style logic in Node-RED

Author

sr.rpo

License

MIT