Configuration

Screenshot #1 cFos Charging Manager Documentation - Configuration

First you should enter global parameters.

TitleThe title of your project
DescriptionHere you can enter a small description of your project
Title and Description will be displayed in the overview accordingly
Load BalancingActivate load management. Note on the cFos Power Brain Wallbox: If you operate the wallbox standalone or as a master, activate the load management. This will also enable you to use all the extended functions. If you operate the wallbox from another load management system or as a slave, deactivate the load management (mode: Observe).
System voltageIt should normally say 230V here
Max. Phase skewThe maximum phase shift load allowed by the energy supplier (i.e. one-sided phase use, e.g. for single-phase charging cars). The prescribed maximum is 4600 W. Your energy supplier may allow you a higher phase shift load.
Skew incl. consumptionActivated: The skew is calculated incl. all consumers and producers. Deactivated: The skew is only related to the charging cars.
Max. Total PowerDetermines the maximum available house connection power. This line is available to the house, including all consumers and charging stations. You can either enter a fixed value or a formula here. In this way, you can make the available house connection power dependent on switching inputs (e.g. for a ripple control receiver) or Charging Manager variables (which can be set externally via HTTP API).
Power ReserveSince fluctuations due to short-term power peaks can always occur during the regulation of the power, you should specify a reserve in the field "Power Reserve" which is attracted by the house connection power and is never touched. During regulation, the Charging Manager checks whether there is nevertheless an overdrawing of the available house connection power The reserve should be chosen higher, the less information is available about the usage of each phase (by suitable meters).
OverdraftIn the field "Overdraft" the Charging Manager enters this value of the overdraft in watts that exceeds the reserve. This allows you to see later how well the regulation is working and whether you should set more power reserve.
Overdraft should ideally be 0 and remain so
Max. Total EVSE PowerDepending on the house installation, it may be that an additional power line has been laid for the charging stations exclusively for charging electric cars. "Max. Total EVSE Power" determines the maximum power of this line
For device deactivation
Energy providerHere you can select the energy provider used for price-based charging rules. For Tibber, you still need an OAuth2 token on the configuration page.
OCPP Server TLSEnable, disable or auto detect TLS
OCPP Server PortTCP/IP port of the OCPP server in the cFos Charging Manager
OCPP Server PasswordPassword for logging on to the OCPP server
Use own certificatesIf activated, an SSL certificate that you can upload under Configuration is used. If deactivated, a self-signed standard certificate is used.

Add new devices

Press the button "Add New Meter" to add another intermediate meter. You can set the following values for a meter:

Screenshot #2 cFos Charging Manager Documentation - Configuration
enabledThe checkbox decides whether the device is enabled (i.e. the Charging Manager controls it or reads it out) or whether it should only be stored for later use
NumberThis is a freely selectable number that is displayed in the overview, e.g. the number of the parking space whose consumption is to be measured
NameHere you can give the intermediate meter a name
DescriptionHere you can add a small description
Device typeWith this select box you choose which device it is. The Charging Manager supports a number of different devices. We will expand the list of supported devices over time. Among the supported devices is an S0 intermediate meter, which you can connect to one of the two inputs of the cFos Power Brain Controller. There are also other common intermediate meters and virtual meters to choose from. The virtual counters are internal Charging Manager counters that sum up certain power values so that they can be nicely displayed in the overview. There is also a simulated counter for experimentation. For the counter you have to set the following:
AddressWith the destination address, you tell the Charging Manager how to address the unit. You can either specify an IP address:port or an HTTP, an HTTPS URL or a COM port and then the COM parameters, e.g. COM1,9600,8,n,1.
IDIf the device is a Modbus device, you must enter the Modbus Slave ID of the device here
RoleThis selection list decides what role the meter has. "Display" means that the meter is for display purposes only and is not included in power calculations. "Consumption" means that the meter measures the power of a consumer. This is subtracted from the set house connection power. With "Generation" you set up meters that measure generated power (e.g. from a solar system). This power is added to the existing house connection power and is available to the wallboxes as charging power. Instead of individual generation and consumption meters, you can also install a central meter for your house connection. In this case, set "Role" to "Grid reference". The Charging Manager then ensures that the total consumption does not exceed that of your house connection. In this case, you do not need to define any consumption or production meters. Meters with "Role" "Consumption E-car" record the consumption of electric cars and are usually attached to a wallbox. "Storage Home" is a storage unit that may not be used for solar surplus charging. "Storage All" is a storage unit that may also be used for charging.
InvertAllows the counters to be inverted, i.e. the sign of the current power is reversed (if you have installed the counter "the wrong way round". The signs of the power values are then also inverted in power calculations.
Note: Both consumption and generation meters normally have positive power values. The role decides whether a value is subtracted from or added to the house connection power. In the case of the total meter, a positive power reading means consumption, a negative one means feed-in
PhasesThe phases that the meter uses or 'automatically' detects based on meter values when charging.
Adjust current valuesFor advanced configurations: Here you can add something to the current values with a formula. If, for example, you have a meter that counts consumption plus the wallbox, you can subtract the current of the meter for the wallbox to determine the pure consumption.
Remote maintenanceIf the meter has a web UI, you will be redirected to it when you click the "Remote maintenance" button
Alternative methodIf the forwarding does not work, you can choose an alternative method.
Reset deviceThis allows you to restart a unit

Note: By the way, solar inverters also count as meters. These can often output the currently generated power via Modbus TCP, just like a meter.

Press the button "Add New EVSE" to add another charging station. You can set the following values for a charging station:

Screenshot #3 cFos Charging Manager Documentation - Configuration
enabledThe checkbox decides whether the device is enabled (i.e. the Charging Manager controls it or reads it out) or whether it should only be stored for later use
NumberThis is a freely selectable number that is displayed in the overview, e.g. the number of the parking space whose consumption is to be measured
NameHere you can give the intermediate meter a name
DescriptionHere you can add a small description
LabelA freely selectable label that appears in the overview when a vehicle is plugged in
Fixed RFIDIf no RFID reader is available, a fixed RFID (mainly for OCPP) can be set here.
Device typeUse this select box to select which device it is. The Charging Manager supports a number of different devices. We will expand the list of supported devices over time. Among the supported devices is the cFos Power Brain Wallbox. You will also find other common EVSEs and a simulation for experiments. For the EVSE you have to set the following:
AddressWith the destination address, you tell the Charging Manager how to address the machine. You can either enter an IP address:port or an HTTP, an HTTPS URL or a COM port and then the COM parameters, e.g. COM1,9600,8,n,1. For OCPP, enter the Charge Point ID of the wallbox here
IDIf the device is a Modbus device, you must enter the Modbus Slave ID of the device here. If the unit is an OCPP unit, enter the Plug ID here
Pinned counterIf a wallbox does not have its own meter, you can "pin" a meter to it. The Charging Manager then assigns this meter to the selected wallbox and considers the power and energy information as that of the corresponding wallbox. Only meters with the "role" "consumption e-car" can be pinned.
Max. Charging currentThe maximum charging current per phase in mA. that this wallbox supports or a formula. You can use the formula to limit the charging current dynamically. Application e.g. in an apartment building with wallboxes behind the flat meters.
Min. charging currentThe minimum charge current below which charging is deactivated and a 300sec pause is initiated. Specified in mA. Minimum 6000mA, min. 6A. Some cars need more to start charging, e.g. Zoe 8A, Landrover possibly 9A.
PriorityPriority during charging. The default is 1. Higher priorities receive all available charging current first, then the wallboxes with the lower priority.
Phase rotationThe Charging Manager can detect phase imbalances (provided the EVSEs have corresponding meters or meters are connected that can output the current of the individual phases). If the imbalance exceeds 4.5 kW, the Charging Manager will reduce the charging current of this charging station or temporarily switch off the charging completely until the symmetry is restored. If you want to charge several vehicles at different EVSEs, the phase position should be rotated during installation in contrast to other EVSEs. You can set this phase rotation here.
Recommendation: Make it uniform, e.g. 1st EVSE 0 degrees, 2nd EVSE 120 degrees, 3rd EVSE 240 degrees, 4th EVSE again 0 degrees, etc.
Note: Phase rotation refers to the phase difference between the EVSE and the main building phases. The meter and EVSE must always have the same phase rotation. This should always be the case for meters installed in EVSEs, while you should pay attention to this when installing external meters. The display of the phases in the selection box in the web interface tells you to which phases of the building installation the 3 phases of the EVSE relate, e.g. at 120 degrees, L2,L3,L1 the EVSE phases L1,L2,L3 are connected to the building phases L2,L3,L1. This means that if, for example, a car is charging on phase L1 and the EVSE is connected with phase rotation 120 degrees, phase L2 in the building is loaded and displayed in the web interface.
PhasesThe phases used by the wallbox or 'automatic' detection based on meter values when charging.
Wake up carThe cFos Charging Manager tries to wake up the car if it is not charging. This is currently only possible with the cFos Power Brain Wallbox under Modbus.
Let the car sleepSome cars do not fall asleep at the end of the charging process and then consume power from the 12V battery. The cFos Charging Manager tries to detect this and prevent constant recharging.
Save batteryIf your car always charges the battery to 100%, the cFos Charging Manager can stop charging as soon as the charging current falls below a certain limit.
Keep loading activatedFor wallboxes that no longer display meaningful status values when charging is deactivated.
OCPP Gateway URLOCPP Gateway Mode: The URL to which the cFos Charging Manager forwards OCPP communication to the backend.
OCPP Gateway PasswordOCPP Gateway Mode: The password for the OCPP backend.
OCPP Gateway Client IDOCPP Gateway Mode: Client ID with which the cFos Charging Manager reports to the backend.
OCPP Gateway Connector IDOCPP Gateway Mode: Display of the automatically assigned Connector ID.
OCPP Gateway SOCKS HostURL of a SOCKS proxy, if the OCPP backend is accessed e.g. via a Smartmeter Gateway
OCPP Gateway SOCKS AuthenticationHere you can select TLS if required
Use own certificatesIf activated, an SSL certificate uploadable by you under Configuration is used. If deactivated, a self-signed standard certificate is used
Remote maintenanceIf the wallbox has a web UI, you will be redirected to it when you click the "Remote maintenance" button
Alternative methodIf the forwarding does not work, you can choose an alternative method.
ResetYou can restart a unit with this
User
Charging rules
Here you can enter users and loading rules as described on the Loading Rules page.