--- title: How do I configure an ABB B24 212-100 kWh meter for energy controller? description: This article explains how to configure the ABB B24 212-100 kWh meter so it can communicate with the Maxem Energy Controller via Modbus RS485. A correct configuration is essential to enable features such as Dynamic Load Management (DLM). --- [Skip to content](https://support.maxem.io/how-do-i-configure-an-abb-b24-212-100-kwh-meter-for-energy-controller#main-content) - [English](https://support.maxem.io/how-do-i-configure-an-abb-b24-212-100-kwh-meter-for-energy-controller) - [Nederlands](https://support.maxem.io/nl/hoe-configureer-ik-een-abb-b24-212-100-kwh-meter-voor-energy-controller-) English Show submenu for translations [![Logo-white](https://support.maxem.io/hs-fs/hubfs/Logo-white.png?width=230&height=37&name=Logo-white.png)](https://maxem.energy/) - Create support ticket Show submenu for Create support ticket - [Sales request](https://share-eu1.hsforms.com/2FZyysmEyRAKSZ2IKnHrf0Q2dyw99) - [Technical support](https://share-eu1.hsforms.com/26WB8z3cYTPWv02MIx6nr7w2dyw99) - [Finance support](https://share-eu1.hsforms.com/2mMsLOqRLQl2l8S6q3ZbgDA2dyw99) - [Report a bug](https://share-eu1.hsforms.com/220XTdV4ZQ726tz1CtoOw7A2dyw99) - [Feature request](https://share-eu1.hsforms.com/2g75JWLunRbqueEKBytvYvg2dyw99) Open main navigation Close main navigation - Create support ticket Show submenu for Create support ticket - [Sales request](https://share-eu1.hsforms.com/2FZyysmEyRAKSZ2IKnHrf0Q2dyw99) - [Technical support](https://share-eu1.hsforms.com/26WB8z3cYTPWv02MIx6nr7w2dyw99) - [Finance support](https://share-eu1.hsforms.com/2mMsLOqRLQl2l8S6q3ZbgDA2dyw99) - [Report a bug](https://share-eu1.hsforms.com/220XTdV4ZQ726tz1CtoOw7A2dyw99) - [Feature request](https://share-eu1.hsforms.com/2g75JWLunRbqueEKBytvYvg2dyw99) - - [English](https://support.maxem.io/how-do-i-configure-an-abb-b24-212-100-kwh-meter-for-energy-controller) - [Nederlands](https://support.maxem.io/nl/hoe-configureer-ik-een-abb-b24-212-100-kwh-meter-voor-energy-controller-) English Show submenu for translations How can we help you? - There are no suggestions because the search field is empty. 1. [Maxem Knowledge Base](https://support.maxem.io/?hsLang=en) 2. [Integrated Hardware](https://support.maxem.io/integrated-hardware?hsLang=en) 3. [kWh Meters](https://support.maxem.io/integrated-hardware?hsLang=en#kwh-meters) November 26, 2025 # How do I configure an ABB B24 212-100 kWh meter for energy controller? ## This article explains how to configure the ABB B24 212-100 kWh meter so it can communicate with the Maxem Energy Controller via Modbus RS485. A correct configuration is essential to enable features such as Dynamic Load Management (DLM). #### **Who is this article for?** This article is intended for **certified installers** working with ABB energy meters and Maxem systems. #### **Why is this configuration important?** With a properly configured ABB B24 212-100, Maxem through the Energy Controller and Energy Cloud can: - Read the meter - Retrieve measurement data (e.g., from the main connection) - Apply Dynamic Load Management If the meter is not configured correctly: → Maxem cannot establish communication, and DLM will not function. #### **Safety and Requirements** Always follow the safety guidelines provided by ABB and the installation environment. - Configuration must only be performed by qualified installers. - Always consult the official **ABB B24 212-100 installation manual**. - Ensure that both the kWh meter and the Maxem Energy Controller are correctly installed before beginning. #### **Required Materials** | Material / Tool | Description | | --- | --- | | ABB B24 212-100 installation manual: [ABB Website](https://new.abb.com/products/2CMA100180R1000/b24-212-100) | Reference for wiring and menu structure | | Small flathead or Phillips screwdriver | For accessing terminal connections | #### **Preparation** Before starting, make sure: - The ABB B24 212-100 is correctly mounted and wired. - The Maxem Energy Controller is fully installed and configured. - RS485 cabling has been installed according to ABB specifications. ### **Modbus RS485 Terminal Layout (for clarity, not for configuration)** **![](https://support.maxem.io/hs-fs/hubfs/image-png-Nov-26-2025-11-24-22-6157-AM.png?width=455&height=762&name=image-png-Nov-26-2025-11-24-22-6157-AM.png)** - **Terminal 35:** C (ground) - **Terminal 36:** B - **Terminal 37:** A **Important:** Always place a **120Ω termination resistor** across terminals **36–37**. ### **Step-by-Step Guide: Configuring the ABB B24 212-100 for Modbus RS485** #### **Display Navigation** **![](https://support.maxem.io/hs-fs/hubfs/image-png-Nov-26-2025-11-00-53-6076-AM.png?width=376&height=261&name=image-png-Nov-26-2025-11-00-53-6076-AM.png)** - **↑ / ↓** – navigate through menus or adjust values - **OK / Exit** – confirm (short press \<1s) or exit a menu (press and hold 2s) - **SET** – opens the menu and starts configuration #### **1\. Setting the Current Transformer (CT) Ratio** ### **Setting the primary current (Prl)** 1. Press **SET** → *CT RAT* appears. 2. Press **OK** → initial CT values appear (e.g., 5-5). 3. Press **↑/↓** until *Prl* is shown. 4. Press **OK** → default value appears (e.g., 5). 5. Press **SET** to modify → *0005* appears. 6. Adjust each digit with **↑/↓** and confirm with **OK**. 7. After the fourth digit, press **OK** to save. 8. Hold **OK** for 2 seconds to return to *Prl*. ### **Setting the secondary current (SEC)** 1. Press **↑/↓** until *SEC* appears. 2. Press **OK** → default value appears (e.g., 5). 3. Press **SET** → the value begins to flash. 4. Adjust with **↑/↓** and confirm with **OK**. 5. Hold **OK** for 2 seconds to return to *SEC*. 6. Hold **OK** for 2 seconds again to return to *CT RAT*. #### **2\. Configuring Modbus RS485 Settings** ### **Open the RS485 menu** 1. Press **↑/↓** until *RS-485* appears. 2. Press **OK** → *Prot* appears. --- ### **Set the communication protocol** 1. Press **OK** → verify that *Modbus* is displayed. - If not: press **SET**, adjust with **↑/↓**, confirm with **OK**. 2. Hold **OK** for 2 seconds to return to *Prot*. ### **Set the baud rate (19200)** 1. Press **↑/↓** until *BAUD* appears. 2. Press **OK** → check if *19200* is displayed. - If not: press **SET**, adjust with **↑/↓**, confirm with **OK**. 3. Hold **OK** for 2 seconds to return to *BAUD*. ### **Set the Modbus address** 1. Press **↑/↓** until *Addres* appears. 2. Press **OK** → default value is *001*. 3. Set the agreed-upon Modbus address (unique per meter). 4. Adjust each digit with **↑/↓**, confirm each digit with **OK**. 5. Hold **OK** for 2 seconds to return to *Addres*. ### **Set parity** 1. Press **↑/↓** until *PARITY* appears. 2. Press **OK** → verify that *EuEn (Even)* is displayed. - If not: press **SET**, adjust with **↑/↓**, confirm with **OK**.          3.   Hold **OK** for 2 seconds to return to *PARITY*. ### **Exit the menu** 1. Hold **OK** for 2 seconds → back to *RS-485*. 2. Hold **OK** for 2 seconds → back to *INSTANT*. 3. Hold **OK** for 2 seconds → back to the standard kWh display. ### **Configuration and Testing** After completing all settings: - Check in Maxem whether the Energy Controller is successfully communicating with the ABB meter. No communication? → Repeat all steps and verify: - A/B/C wiring - 120Ω termination resistor - Baud rate - Parity - Modbus address #### **Useful Documentation** Find the manual and additional documentation for the ABB B24 212-100 kWh meter on the ABB website: [**Link**](https://new.abb.com/products/2CMA100180R1000/b24-212-100) - [Start using Maxem](https://support.maxem.io/start-using-maxem?hsLang=en#main-content) - [Contact Maxem Sales](https://support.maxem.io/start-using-maxem?hsLang=en#contact-maxem-sales) - [Onboarding](https://support.maxem.io/start-using-maxem?hsLang=en#onboarding) - [Products & Services](https://support.maxem.io/products-services?hsLang=en#main-content) - [Charge Point Management System (CPMS)](https://support.maxem.io/products-services?hsLang=en#charge-point-management-system-cpms) - [Energy Management System (EMS)](https://support.maxem.io/products-services?hsLang=en#energy-management-system-ems) - [Maxem Energy Controller](https://support.maxem.io/products-services?hsLang=en#maxem-energy-controller) - [4G SIM cards](https://support.maxem.io/products-services?hsLang=en#4g-sim-cards) - [Maxem Energy Cloud](https://support.maxem.io/maxem-energy-cloud?hsLang=en#main-content) - [Getting started](https://support.maxem.io/maxem-energy-cloud?hsLang=en#getting-started) - [User accounts, Roles and Permissions](https://support.maxem.io/maxem-energy-cloud?hsLang=en#user-accounts-roles-and-permissions) - [Charging stations](https://support.maxem.io/maxem-energy-cloud?hsLang=en#charging-stations) - [Charge passes](https://support.maxem.io/maxem-energy-cloud?hsLang=en#charge-passes) - [Billing](https://support.maxem.io/maxem-energy-cloud?hsLang=en#billing) - [Search](https://support.maxem.io/maxem-energy-cloud?hsLang=en#search) - [Troubleshooting](https://support.maxem.io/maxem-energy-cloud?hsLang=en#troubleshooting) - [Static Load Balancing](https://support.maxem.io/maxem-energy-cloud?hsLang=en#static-load-balancing) - [Integrated Hardware](https://support.maxem.io/integrated-hardware?hsLang=en#main-content) - [Chargers](https://support.maxem.io/integrated-hardware?hsLang=en#chargers) - [kWh Meters](https://support.maxem.io/integrated-hardware?hsLang=en#kwh-meters) - [Battery Energy Storage System (BESS)](https://support.maxem.io/integrated-hardware?hsLang=en#battery-energy-storage-system-bess) - [PV Inverters](https://support.maxem.io/integrated-hardware?hsLang=en#pv-inverters) - [Subscriptions, invoices and payments](https://support.maxem.io/subscriptions-invoices-and-payments?hsLang=en) - [Support](https://support.maxem.io/support?hsLang=en#main-content) - [Technical support](https://support.maxem.io/support?hsLang=en#technical-support) - [Finance support](https://support.maxem.io/support?hsLang=en#finance-support) - [Release notes](https://support.maxem.io/support?hsLang=en#release-notes) - [Maxem News & Updates](https://support.maxem.io/support?hsLang=en#maxem-news-updates) [![](https://support.maxem.io/hs-fs/hubfs/Logo-Hi-res-Maxem.png?width=544&height=102&name=Logo-Hi-res-Maxem.png)](http://maxem.energy) Kabelweg 57, 1014 BA, Amsterdam, NL [mailto:support@maxem.energy](mailto:support@maxem.energy) Copyright © 2025, Maxem