cFos Power Brain Controller with Modbus or S0 meter

Possible uses for the counter

1. Logging of the charged kWh

Img cFos Power Brain Controller with Modbus or S0 meter Img cFos Power Brain Controller with Modbus or S0 meter

Ask your electrician to install the S0 meter in the electrical distribution in the supply lines for the cFos Power Brain Controller. You need to have a twisted-pair connection from the S0 counter to the "S0-1" port on the cFos Power Brain Controller. For Modbus meters you need to connect the A and B terminals of the Modbus meter to the cFos Power Brain Controller terminals A and B using a twisted pair connection.

You need the following settings in the "Configuration" dialog:

S0 counter

Add a cFos Power Brain Controller type counter as a meter (counter).
Device type: cFos Power Brain
Address: localhost:4701
ID: 1
Enabled: on
Role: display or consumption e-car

If necessary, set the number of pulses per kWh.

Modbus counter

Add a meter of type "cFos / YTL DTS353F-2" as meter (counter).
Device type: cFos / YTL DTS353F-2
Address: COM1,9600,8,e,1
ID: 101
Enabled: on
Role: display or consumption e-car

From now on, your cFos Power Brain Controller counts the energy charged to the car.

Pinned counter

Note: In order for the EVSE to know about this meter, you must attach this S0 meter to the settings for the EVSE.

2. Dynamic Charge Current Control with Consideration of Home Consumption

Img cFos Power Brain Controller with Modbus or S0 meter Img cFos Power Brain Controller with Modbus or S0 meter

Unique selling point: we know of no other EVSE that can do this.

Ask your electrician to install the meter behind your energy supplier's meter in such a way that it only measures the electricity consumption in your house - without that of the cFos Power Brain Wallbox. You need to have the meter wired to the cFos Power Brain Controller as above.

Activate the "load management" in the configuration of the cFos Power Brain Controller.

You need the following settings in the "Configuration" dialog:

Enter your house connection power under "Max. total power". You should definitely enter 3000 (3 kW) as the "power reserve" as the control reserve, because individual phases could be loaded differently.

Add the cFos Power Brain Wallbox as an EVSE (wallbox).
Device type: cFos Power Brain
Address: localhost:4701
ID: 1
Activated: on
Max power: 11kW
Priority: 0
Phase rotation: 0

Add the type S0 meter or Modbus meter as meter as explained above. Role: consumption

Save all settings. From now on, the cFos Power Brain Controller reduce the charging power of your car if the house consumption increases for a short time, e.g. by using a water heater. As soon as consumption has dropped again, the car has full charging power available again.

If you later add a second (supported) wallbox, the Charging Manager can distribute the available power to both wallboxes.

3. Charge only when the solar system supplies enough electricity

Img cFos Power Brain Controller with Modbus or S0 meter Img cFos Power Brain Controller with Modbus or S0 meter

Here you will find instructions for solar surplus loading

If the Charging Manager cannot read the inverters of your solar system, ask your electrician to install the meter behind the inverter of your solar system in such a way that it measures how much power the solar system is currently generating. You need to have the counter wired to the cFos Power Brain Controller using a twisted pair connection as explained above.

Activate the "load management" in the configuration of the cFos Power Brain Controller.

You need the following settings in the "Configuration" dialog:

Enter your house connection power under "Max. total power". You should definitely enter 3000 (3 kW) as the "power reserve" as the control reserve, because individual phases could be loaded differently.

Add the cFos Power Brain Wallbox as an EVSE (wallbox).
Device Type: cFos Power Brain
Address: localhost:4701
ID: 1
Activated: on
Max power: 11kW
Priority: 0
Phase rotation: 0

Click "Add loading rule" to add a loading rule. Select "Solar" as the rule type and enter the desired output of the solar system from which the car should be charged as "Start current limit". Enter the desired charging power for the car under "Current". You do not have to choose the total solar power if you want to use the solar system to operate other devices. For example, select "Absolute" if the charging power is to be set as an absolute number of watts.

Save the cFos Power Brain Controller settings.

Add the type S0 meter or Modbus meter as meter as explained above.
Role: Generation

Save the settings of the meter and the house connection load. From now on, the Charging Manager will allocate the proportion of solar power you have selected to the car for charging.

Notes

Some S0 counters have a semiconductor pulse output. If you do not register any pulses, you must swap the lines at the S0 input. Under "Configuration" under "Hardware" you will find a display of how many pulses were recorded at the S0 inputs. In the case of Modbus meters, inputs A and B can be swapped. You may have to reverse the polarity here.

You can also combine both variants: Connect a meter to measure house consumption and another meter to measure solar power.

In these examples, we operate the cFos Power Brain Controller as a Modbus TCP device. localhost:4701 is the EVSE, localhost:4702 the S0 counter input 1 and localhost:4703 the S0 counter input 2.
The EVSE has slave ID 1, the S0 counter input 1 has ID 2 and the S0 counter input 2 has ID 3.

Take care not to overload the S0 intermediate counters and make sure that the maximum capacity of the counter according to the data sheet is not exceeded.