Siemens · Three-phase power meterSENTRON PAC2200

Choose the connection that matches the model

This guide is for ordering code 7KM2200-2EA30-1EA1 and its Ethernet interface. The RS-485 ordering code, direct-connected 65 A versions, PAC2200CLP and MID variants are separate selections and must not inherit this interface or commissioning scope.

Match the exact model to its interface

Use the complete catalogue number, not the family name, when selecting an Edge connection.

What Edge can exchange

The exact list depends on the model and its published data map. Start with the monitoring and control points the project will actually use.

• Phase-to-neutral and phase-to-phase voltage as documented 32-bit floating-point values
• Phase current, average current and neutral current where exposed by the selected version
• Active, reactive and apparent power, power factor and frequency
• Demand and limit values selected for the monitoring application
• Device and communication status needed to distinguish a live zero from stale telemetry
• Tariff energy counters require a separate decision: Siemens documents them as four-register 64-bit Double values, outside the initial native 32-bit Edge mapping scope

Commission the interface, then preserve the map

A successful network connection is the start of the check, not the end.

1. Read and photograph the complete ordering code and firmware identity before selecting the map. Do not treat PAC2200 as one interchangeable hardware interface.
2. Confirm the installed IP address, configured Modbus TCP port and unit identifier. Port 502 is the documented default, not a value to assume on an existing site.
3. Create the network rule from Edge to the meter only. The PAC2200 IP filter restricts writes by subnet; it is not authentication or encryption.
4. Start with the read-only voltage check above. Do not write registers, reset counters or change protection settings as part of an integration test.
5. Configure Edge with Siemens' protocol offset 1. If another client asks for 4xxxx display notation, the equivalent reference is 40002; do not put that five-digit display reference into a field that expects the zero-based PDU start.
6. Check units and signed direction for power values against the front panel under a stable operating condition, then observe fresh timestamps over several polling intervals.
7. Keep the PAC2200 hardware write protection enabled unless an authorised commissioning procedure explicitly requires a local change.
8. Treat connection success and measurement success as separate gates. A responding TCP socket does not prove that the address, data type or word order is correct.