Artemes AM2
The Artemes AM2 is a multifunctional three-phase energy meter for DIN rail mounting, designed for consumption analysis in commercial and industrial installations. It connects over Modbus TCP via its Ethernet port, making integration straightforward. This template reads per-phase voltage and current, per-phase active and reactive power, system-level totals, grid frequency, and cumulative production and consumption energy counters. Installers using the ModbusCloud Gateway gain a continuous, cloud-based view of site energy flows without additional hardware or software.
- Protocol
- Modbus TCP
- Connection
- Ethernet, Modbus TCP
- Registers
- 17, read only
- Brand
- Artemes
- Last updated
Registers (17)
17 read, 0 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| voltage_l1 | V | Read | |||
| voltage_l2 | V | Read | |||
| voltage_l3 | V | Read | |||
| voltage | V | Read | |||
| current_l1 | A | Read | |||
| current_l2 | A | Read | |||
| current_l3 | A | Read | |||
| current | A | Read | |||
| active_power_l1 | W | Read | |||
| active_power_l2 | W | Read | |||
| reactive_power_l1 | W | Read | |||
| reactive_power_l2 | W | Read | |||
| reactive_power_l3 | W | Read | |||
| reactive_power | var | Read | |||
| frequency | Hz | Read | |||
| active_production_energy | Wh | Read | |||
| active_consumption_energy | Wh | Read |
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Use cases
- Monitor per-phase active power on L1 and L2 to detect load imbalances across distribution circuits.
- Track cumulative active consumption energy over time to validate utility invoices against measured data.
- Alert on grid frequency deviations to identify power quality events affecting sensitive equipment.
- Compare active production energy against consumption energy to verify net import or export at the metering point.
- Report reactive power totals per phase to identify sites where power factor correction is required.
Installation
Connect the Artemes AM2 to your local network via its Ethernet port and confirm it has a stable IP address; Modbus TCP is active by default on port 502.
Connect the ModbusCloud Gateway to the same LAN segment as the AM2, or route them through the same switch, ensuring no firewall blocks port 502.
In the ModbusCloud portal, add a new device, import the Artemes AM2 template, and enter the AM2 IP address and Modbus unit ID (default is 1, confirm in the AM2 web interface under the communication or Modbus section).
Trigger a manual poll in the portal and spot-check voltage_l1 and frequency against the values shown on the AM2 display or its web interface to confirm correct communication.
Things to watch for
All registers return zero or an error after connecting. What is wrong?
Confirm the AM2 Ethernet port has a valid IP address and is reachable from the ModbusCloud Gateway (ping it first). The AM2 uses Modbus TCP on port 502 by default. If a managed switch or VLAN separates the devices, ensure port 502 is permitted. Also verify the unit ID in the portal matches the AM2 configuration.
Active power readings show unexpected negative values on L1 or L2.
The active_power_l1 and active_power_l2 registers are int64 and are signed by design, so negative values indicate power flowing in the reverse direction on that phase. Check Rogowski coil orientation: if a coil is installed backwards on a phase conductor, the sign will be inverted for that phase only.
Energy totals for production and consumption are not incrementing correctly.
The active_production_energy and active_consumption_energy registers are uint64 and hold cumulative watt-hours. If they appear frozen, confirm the AM2 has an active current path on the monitored phases. Also check that the Rogowski coil is fully closed around the conductor and seated correctly, as an open coil will read zero current.
Voltage readings seem off by a fixed factor. Is there a scaling issue?
The voltage registers are uint32 and the unit is volts. Some firmware versions of the AM2 apply an internal scaling factor. Cross-check the raw register value against the AM2 web interface reading. If they differ by a factor of 10 or 100, confirm which firmware version is installed and consult the Artemes AM2 documentation for the applicable scaling divisor for your variant.
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