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 anonymised usage statistics so that we can improve our hardware and software.

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, EVSE number, RFID/PIN of the user, charged Wh (watt hours) and total watt hours for each charging process, if the required meters are present. This allows you to create invoices even if several users share a charging station.

With the other logging settings you determine how detailed logging is done for the individual topics. This may help with troubleshooting. Remember to set the logs to "Errors" or "Off" if they are not needed. If necessary, you can also send logs to a suitable HTTP server, e.g. to cFos eMobility GmbH, so that our support team can take a closer look at the problem. The same applies to crash dumps (which hopefully should not occur in the first place).

Screenshot #3 cFos Charging Manager Documentation - System Configuration

COM Port mapping

This affects the general Charging Manager function on computers other than the cFos Charging Controller. Here you may 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 COM port numbers in all devices.


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 addressed via the RS 485 interface, you need an ID that you must set in the EVSE configuration. You can determine this here by entering the COM port to which the Tesla EVSE is connected. For cFos Charging Controller, this is always COM1

File Upload

Here you can upload certain files, e.g. certificates for SSL/TLS encryption, Modbus counter definitions and licence keys to unlock additional charging points in the Charging Manager.