Victron EM24 Meter: Ethernet & RS485 Setup
Updated 6 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 1 source · Method ↗
Key Takeaways
- The Victron EM24 Ethernet is a standard device to measure the power and energy of a 3-phase application. Its data will be displayed on a GX device and our VRM portal..
- High-speed ESS grid control: As a Grid meter and used as control input for an ESS System..
- Solar generation tracking: To measure the output of a PV Inverter..
- Backup power metering: To measure the output of a AC Genset..
- Sub-circuit power logging: As an AC meter to measure a dedicated AC load circuit..
- Direct LAN network connectivity: A wired ethernet connection to the local network in such a way that the GX device can reach it..
- Venus OS software role selection: The configuration option of either Grid Meter, PV Inverter, Generator or AC Meter is set in the GX device..
- Voltage sensing protection rule: Note that wherever the word "Fuse" appears in the diagrams, a 315 mA fuse should be used, if required by local law..
- Solar current direction wiring rule: When used to measure a PV Inverter, terminals 1, 4 and 7 should face the PV inverter to ensure correct direction of current and power..
- Single-phase jumpered topology: Single-phase, single function EM24 connected as a single-phase, single function grid meter.
Ethernet Modbus TCP Architecture & System Operating Roles
The EM24 Ethernet connects directly to local area networks, streaming revenue-grade 3-phase electrical data to Cerbo GX and Ekrano GX controllers via Modbus TCP without requiring USB-to-RS485 adapters.
The Victron EM24 Energy Meter is a 3-phase revenue-grade energy meter with Ethernet Modbus TCP, supporting operating roles as a Grid Meter (ESS), PV Inverter meter, Genset meter, or AC Sub-Circuit Load meter:
- AC Phase Terminals: 3-Phase Direct In, Term 1,4,7 to PV, Single-Phase Jumper, Direct Line Meter.
- Voltage Fusing: 315 mA Fuses, Voltage Reference, Local Law Compl., Safety Fusing.
- Network Link: Ethernet LAN, Modbus TCP, Cerbo GX / OS, VRM Portal.
Installation Rules & Electrical Wiring
- Grid Meter Role: Land incoming utility feeds ensuring The configuration option of either Grid Meter, PV Inverter, Generator or AC Meter is set in the GX device. operating As a Grid meter and used as control input for an ESS System..
- PV Inverter Sizing: Wire terminals so that When used to measure a PV Inverter, terminals 1, 4 and 7 should face the PV inverter to ensure correct direction of current and power..
- Voltage Protection: Protect sensing circuits ensuring Note that wherever the word "Fuse" appears in the diagrams, a 315 mA fuse should be used, if required by local law..
Local Area Network Interfacing & System Functions
The EM24 integrates seamlessly into the Victron ecosystem:
- Wired Ethernet Connection: Establishes A wired ethernet connection to the local network in such a way that the GX device can reach it..
- Multi-Role Functionality: Operates To measure the output of a PV Inverter., To measure the output of a AC Genset., or As an AC meter to measure a dedicated AC load circuit..
- Single-Phase Flexibility: Configures as Single-phase, single function EM24 connected as a single-phase, single function grid meter.
- Comprehensive Capability: Operates reliably because The Victron EM24 Ethernet is a standard device to measure the power and energy of a 3-phase application. Its data will be displayed on a GX device and our VRM portal..
Technical Specifications & Sizing Summary
Parameter | Engineering Rating | Design Significance |
|---|---|---|
Primary Meter Function | The Victron EM24 Ethernet is a standard device to measure the power and energy of a 3-phase application. Its data will be displayed on a GX device and our VRM portal. | High-precision 3-phase grid and generation measurement |
ESS Grid Control Role | As a Grid meter and used as control input for an ESS System. | Enables dynamic zero-export and phase balancing in ESS |
Solar PV Metering Role | To measure the output of a PV Inverter. | Dedicated metering of AC-coupled solar generation |
Generator Metering Role | To measure the output of a AC Genset. | Real-time generator output and energy logging |
Dedicated Subcircuit Role | As an AC meter to measure a dedicated AC load circuit. | Sub-metering of EV chargers and heavy machinery |
Network Interface Link | A wired ethernet connection to the local network in such a way that the GX device can reach it. | Direct LAN Modbus TCP connection without USB converters |
Software Role Selection | The configuration option of either Grid Meter, PV Inverter, Generator or AC Meter is set in the GX device. | Flexible operating role assignment in Venus OS |
Voltage Sense Protection | Note that wherever the word "Fuse" appears in the diagrams, a 315 mA fuse should be used, if required by local law. | Protects unmetered voltage reference lines |
PV Current Orientation | When used to measure a PV Inverter, terminals 1, 4 and 7 should face the PV inverter to ensure correct direction of current and power. | Ensures accurate solar energy direction logging |
Single-Phase Operation | Single-phase, single function EM24 connected as a single-phase, single function grid meter | Flexible wiring topology for single-phase installations |
References
- Victron Energy: EM24 Ethernet Manual — accessed 31 August 2026
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