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 % SPDX-License-Identifier: Apache-2.0
 (adapter-nodered-page)=
 
-# NodeRED Adapter
+# Node-RED Adapter
+
+The Node-RED adapter provides a **bidirectional interface** between
+**NodeRED** and the **Akkudoktor-EOS (EOS)** energy optimisation system.
+
+It allows EOS to:
+
+* **Provide** control instructions via HTTP-IN Node
+* **Receive** measurements and device states via Node-RED
+  (The HTTP-IN Node "eos_data_acquisition" is NOT yet functional)
+
+This adapter enables a handover of the EOS control instructions (EV, battery & home appliance)
+for the current timeslot via Node-RED to any desired integration,
+while keeping EOS **device simulations and optimisation
+logic decoupled from other implementations**.
+
+## 1. Exchanging data between EOS and Node-RED
+
+### Basic concept
+
+EOS **receives** e.g. measurements via HTTP-IN by Node-RED before each energy management run.
+(The HTTP-IN Node "eos_data_acquisition" is NOT yet functional)
+
+EOS **provides control instructions** via HTTP-IN to Node-RED after each optimisation run.
+
+Typical use cases with Node-RED:
+
+* optimal for heterogeneous systems
+* Automations and scripts
+* Device or manufacturer integrations
+* Debugging and validation
+
+### Configuration steps in EOS
+
+#### 1. Enable and configure the Node-RED adapter
+
+EOS must be configured with access to the Node-RED instance in Config->adapter.
+* prerequisite is an already installed and running Node-RED instance
+* adapter.nodered.host: 192.168.1.109 (example IP of your Node-RED instance)
+* adapter.nodered.port: 1880 (default)
+* adapter.provider: ["NodeRED"]
+
+#### 2. Run energy optimisation
+
+Before the run, EOS receives:
+* EOS receives measurement values via HTTP-IN "eos_data_acquisition" before optimisation.
+  (The HTTP-IN Node "eos_data_acquisition" is NOT yet functional)
+
+After the run, EOS provides:
+* The device instruction and solution entities for the current time slot via HTTP-IN "Control Dispatch".
+
+### Configuration steps in NodeRED
+
+#### 1. Create Node-RED flow with nodes for processing
+
+* EOS Control Disptach
+
+![My Picture](../../_static/EOS_Control_Dispatch_Part-1.png)
+![My Picture](../../_static/EOS_Control_Dispatch_Part-2.png)
+![My Picture](../../_static/EOS_Control_Dispatch_Part-3.png)
+![My Picture](../../_static/EOS_Control_Dispatch_Part-4.png)
+
+## 2. Data obtained *from EOS*
+
+### 2.1 Device instruction (Control Dispatch)
+
+After each energy optimisation run, EOS produces **device instructions** for the
+controlled resources.
+
+E.g.:
+`{"battery1_op_mode":"SELF_CONSUMPTION","battery1_op_factor":1,"ev11_op_mode":"IDLE","ev11_op_factor":1,"homeappliance1_op_mode":"RUN","homeappliance1_op_factor":1}`
+
+* The **entity state** represents the device's selected **operation mode**.
+* **Entity attributes** provide additional parameters for the operation mode, such as:
+
+  * `operation_mode_factor`
+  * Power or rate limits
+  * Mode-specific control parameters
+
+## 3. Data retrieved by EOS via Node-RED
+
+"Under construction".
+
+## 4. Further processing of EOS data
+
+Once published, EOS data can be used in any needed scenario:
+
+* Used as triggers or conditions in automations
+* Mapped to device-specific services or integrations
+* Visualised in dashboards
+* Compared with measured values for monitoring and validation
+
+EOS does **not** directly control devices.
+It provides **structured optimisation results**, while your tool of choice remains
+responsible for executing the actual control actions.
+
+### Summary
+
+* **EOS** focuses on **forecasting, simulation, and optimisation**
+* **Node-RED** can focus on **moving, processing, integration and execution**
+
+The Node-RED adapter provides a structured interface between EOS and a heterogeneous environment,
+allowing flexible integration without coupling EOS to device specifics.