Meters and sensors

CEMM 3.0 supports reading various types of meters and sensors. This makes CEMM 3.0 suitable for virtually any situation, whether you want to read just one smart meter or a large number of electricity, gas, and water meters. Discover below which meters you can read with CEMM 3.0 and what data each meter type provides.

Description

The smart meter is used to monitor the main connection. The meter measures energy in both directions: consumption and return. In the case of a 3-phase connection, data is also available split across the three phases.

The CEMM is suitable for reading any Dutch and Belgian smart meter with a P1 port. If a digital gas or water meter is also connected to the smart meter, the CEMM can read it as well.

A HAN adapter is required to read a Norwegian HAN meter; this is available separately.

The smart meter is usually connected to port 1 of the CEMM. If it is already in use, a P1 USB cable can be used instead of the supplied P1 cable.

If the P1 port of your smart meter is already in use, it can easily be split with one of Cedel's P1 splitters.

MeterIntervalConnectionData
Dutch smart meter DSMR 3realtime 10sPort 1 or P1-USB cableW, kWh, gas (m³) per hour
Dutch smart meter DSMR 4 and 5realtime 1sPort 1 or P1-USB cableW, kWh, V, also per phase, gas (m³) per 5 minutes
Belgian digital meter (e-mucs)realtime 1sPort 1 or P1-USB cableW, kWh, V, also per phase; max. demand peak; depending on the meter also gas and water
Norwegian smart meter (HAN)realtime 10sVia HAN-adapter on port 1W, kWh, V; per phase
Curious about an example situation? View the scenarios.

Description

With CEMM 3.0, you can monitor electrical systems in various ways, including charging stations, heat pumps, rented rooms or garages, battery systems, and much more. kWh meters can be used for this, but in some cases, a system can also be read directly via the network. See the various options below.

MeterConnectionData
kWh-meter with pulse output (S0)Port 1 and 2*W, kWh
kWh-meter with Modbus RTU/RS485Via a Modbus/RS485-USB converter, via the USB portW, kWh, V, A, per phase, meter readings
kWh-meter with Modbus TCPVia the netwerkW, kWh, V, A, individual phases, meter readings
Other meter via MQTT or TCP (such as Shelly kWh-meters)Via thenetwerkW, kWh, V, A, individual phases, meter readings

* The CEMM supports up to 3 pulse meters in the following configuration:
Port 1: smart meter, or pulse, or smart meter + pulse (with S0 splitter) or 2x pulse (with S0 splitter and a modified cable)
Port 2: pulse

Curious about an example situation? View the scenarios.

Description

With Shelly's smart plugs, the CEMM can also monitor the consumption (or production) of individual devices.

MeterData
Shelly Plug S (gen3)W, kWh, V, A (also suitable for production/export)
Shelly Plus Plug S (gen2)W, kWh, V, A
Shelly Plug (gen1)W, kWh
Curious about an example situation? View the scenarios.

Description

There are several ways to monitor the yield of your solar panels. The simplest and cheapest solution is to install a kWh meter with a pulse output on the solar panel group. This provides insight into power and energy.

Would you like to measure more, such as voltage, or view multiple PV systems independently? Then you can choose kWh meters with Modbus RTU or TCP communication. The CEMM is also suitable for communicating directly with inverters via Modbus or MQTT. However, setting up this communication requires some technical expertise.

MeterConnectionData
kWh-meter with pulse output (S0)Port 1 and 2*W, kWh
kWh-meter with Modbus RTU/RS485Via a Modbus/RS485-USB converter, via the USB portW, kWh, V, A, per phase, meter readings
kWh-meter with Modbus TCPVia the netwerkW, kWh, V, A, individual phases, meter readings
PV inverter via MQTT or Modbus TCPVia the netwerkW, kWh, V, A, individual phases, meter readings
PV inverter via Modbus RTU/RS485Via a Modbus/RS485-USB converter, via the USB portW, kWh, V, A, individual phases, meter readings
Shelly Plug S (gen3) for PV with plugVia the netwerkW, kWh, V, A

* The CEMM supports up to 3 pulse meters in the following configuration:
Port 1: smart meter, or pulse, or smart meter + pulse (with S0 splitter) or 2x pulse (with S0 splitter and a modified cable)
Port 2: pulse

Curious about an example situation? View the scenarios.

Description

With Teracom sensors, the CEMM can also monitor temperature, humidity, and CO₂ levels. The sensors are connected to the CEMM via a Modbus converter. The sensors must be powered via a Modbus converter or an external power supply.

SensorEnvironmentConnectionData
Teracom TSH300v3IndoorModbus RTU/RS485temperature, humidity
Teracom TSH330OutdoorModbus RTU/RS485temperature, humidity
Teracom TSM400 4 THIndoorModbus RTU/RS485temperature, humidity
Teracom TSM400 4 CPTHIndoorModbus RTU/RS485temperature, humidity, CO₂
Curious about an example situation? View the scenarios.

Description

The CEMM can also record data that doesn't come from a physical meter. This makes it possible to log current weather conditions. Every fifteen minutes, the CEMM retrieves current observations from OpenWeather and makes them available in the CEMM.

This allows you to compare your gas consumption with the outside temperature, for example, or to compare cloud cover with solar panel yield.

You create an account with OpenWeather, after which you receive an API key. Enter this key into the CEMM to start monitoring.

Curious about an example situation? View the scenarios.