System Configuration

Screenshot #1 cFos Charging Manager Documentation - System Configuration

You should change the Admin password the first time you use it. Make a good note of it so you don't lock yourself out! The default password for the cFos Charging Manager is empty. The username is always admin.

Please allow the submission of crash information and anonymised usage statistics so that we can improve our hardware and software.

If you activate 'localhost is admin', the cFos Charging Manager does not require an admin password if the web access is carried out from the same PC.

Screenshot #2 cFos Charging Manager Documentation - System Configuration


Here you will find a transaction log, a file that can be read into Excel, which contains the start and end date/time, the number of the wallbox, device ID, user ID, RFID/PIN of the user, charged Wh (watt hours) and total watt hours for each charging process, if the corresponding meters are available. This allows you to create invoices even if several users share a charging station. The last two columns of the transaction log contain a 1 if charging was done with solar surplus (otherwise 0) and the percentage of kWh charged with solar generation.

Modbus TCP/RTU Proxy

You can forward Modbus TCP accesses to Modbus RTU, i.e. to a COM port. This allows devices that only have a 2-wire connection to be addressed via TCP/IP. To do this, you can set which TCP port the proxy should listen to and which COM parameters it should use when accessing the Modbus RTU device.


Here you can create a diagnostic log for 5 minutes. Almost everything is then recorded and helps us with support. You should reproduce any problem that occurs while the diagnostic log is running. In addition, with the Diagnse Log, the entire configuration is also saved there so that we are informed about details of your settings. With the general logging settings, you determine how detailed logging is done for the individual topics. This may help with troubleshooting. Remember to set the logs to "Error" or "Off" when they are not needed. If necessary, you can also send logs to a suitable syslog server.

File management

You can upload licence keys to unlock additional charging points, meter definitions, configuration files and certificates to the cFos Charging Manager here. User-defined meters have higher priority than those supplied by us for the same device type. Uploaded certificates can be selected at all points where certificates can be used.

Charging Manager Variables

You can create variables yourself here and/or have these variables managed via the HTTP API for energy suppliers. All variables can be accessed via formulas. This allows you to centrally set values that the cFos Charging Manager uses to control and make them controllable from an external location. This also allows Charging Manager configurations to be created in general and used for multiple systems by accessing the variables stored in the system configuration that can be set individually for each system.

Smart Meter Gateway

The cFos Charging Manager can connect to a Smartmeter Gateway and exchange data with the energy supplier / grid operator via this gateway. You can specify the URL / IP address:port of the Smartmeter gateway and the destination address that the cFos Charging Manager should reach via the Smartmeter gateway, e.g. a server of the energy supplier. You can set whether the remote station (e.g. the energy supplier) should have admin rights for your system or only for the API functions of the energy supplier or no admin rights at all via this connection secured by the Smartmeter Gateway. TLS can be activated as encryption.

System time

Here you can set whether the time provided by an OCPP backend is to be used as the system time.

Screenshot #3 cFos Charging Manager Documentation - System Configuration

COM Port mapping

This concerns the general Charging Manager function on computers other than the cFos Power Brain Controller. Here it can happen that you have several RS-485 buses with different groups of devices. Then it can make configuration easier if you can map one COM port to another without having to change the COM port numbers in all devices.

Counter test

With the meter test, you can display all values relevant for the Charging Manager and thus check whether your meter transmits plausible values. To do this, enter the device type, address and ID as you would when setting up a meter and click on "Test".

Execute command

You can execute a command under Windows, Raspberry and Linux and display the text output. This allows you to maintain the system subject to the Charging Manager without external remote control software. This function is not available under cFos Power Brain Wallbox.

Modbus test

With this dialogue element you can send individual Modbus commands to specific devices. Enter the address and ID of the Modbus device in the same way as when configuring meters and EVSEs in the fields "Address" and "Slave ID". In "Register" you can specify the register number in decimal form or in hexadecimal form by prefixing it with 0x, from which you want to read or write. With "Type" you define the data type stored in the Modbus registers, with "Count" how many such data types are to be read from the registers. When writing, you also specify the "Value to write". You can also configure the read or write function number. Then click on "Read" or "Write". The result appears in the "Result" and "Status" field.

Screenshot #4 cFos Charging Manager Documentation - System Configuration

Tesla TWC

For the Tesla Wall Connector Gen 2, which can be accessed via the RS-485 interface, you need an ID that you must set in the wallbox configuration. You can determine this here by specifying the COM port to which the Tesla Wallbox is connected. For cFos Power Brain Controller, this is always COM1.