{"library":"node-red-node-rbe","title":"Node-RED Report-By-Exception (RBE) Node","description":"The `node-red-node-rbe` package provides a Node-RED node for implementing report-by-exception (RBE) and deadband/narrowband filtering logic within Node-RED flows. It ensures that messages are only passed through if their `msg.payload` changes significantly from the previously sent value, reducing redundant data processing and network traffic. The node can operate in RBE mode (value changes), deadband mode (value changes by more than a fixed amount or percentage), or narrowband mode (blocks if value changes *more* than a threshold, useful for ignoring outliers). It supports filtering on a per-`msg.topic` basis, allowing a single node to manage multiple data streams concurrently. The current stable version is 0.8.0, with releases typically marked as 'Milestone Releases', indicating less frequent, feature-driven updates rather than strict semantic versioning for every change. Its primary differentiation lies in its direct integration into Node-RED's visual programming paradigm for efficient data conditioning.","language":"javascript","status":"active","last_verified":"Sun Apr 19","install":{"commands":["npm install node-red-node-rbe"],"cli":null},"imports":["This package is a Node-RED node and does not expose JavaScript symbols for direct `import` or `require` by end-user applications. It is loaded by the Node-RED runtime automatically after installation."],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"npm install node-red-node-rbe\n# After installation, restart Node-RED to load the new node.\n# node-red-start # or equivalent command\n\n# To use:\n# 1. Drag the 'rbe' node from the Node-RED palette onto your flow.\n# 2. Configure its mode (RBE, deadband, narrowband) and parameters (e.g., percentage, absolute value).\n# 3. Connect an input node (e.g., Inject) to the 'rbe' node, and the 'rbe' node to an output node (e.g., Debug).\n# 4. Deploy the flow and observe how the 'rbe' node filters messages based on your configured logic.","lang":"shell","description":"Installs the RBE node into your Node-RED environment and describes its basic usage within a flow.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":null}