Configuring GSM

1. Goal

• Connect your Charge Controller to your Backend through GSM

2. Does my Controller support GSM?

Check the capabilities table to find out if your Controller variant provides this feature:

Capabilities table

CC613

Model	Art. No.	USB Host	Ethernet	Internal Modbus	External Modbus	Cellular Modem	WLAN	PLC (ISO 15118)
CC613-ELM4PR-M	B94060020	2x				4G
CC613-ELPR-M	B94060021	2x
CC613-ELM4PR	B94060026	2x				4G
CC613-ELPR	B94060027	2x
CC613-HEM-X2	B94060028	2x

CC612

Model	Art. No.	USB Host	Ethernet	Internal Modbus	External Modbus	Cellular Modem	WLAN	PLC (ISO 15118)
CC612-1M4PR	B94060011	1x		EHZ only		4G
CC612-2M4PR	B94060013	1x				4G
CC612-2M4R	B94060015	1x
CC612-1SOPR	B94060005	1x		EHZ only
CC612-2SOPR	B94060007	1x				4G
CC612-2SOR	B94060028	1x
CC612-1M3PR	B94070001	1x		EHZ only

ICC1324

Model	Art. No.	USB Host	Ethernet	Internal Modbus	External Modbus	Cellular Modem	WLAN	PLC (ISO 15118)
ICC1324-Connect Plus	B94060080		2x			4G (Cat 1)
ICC1324-Connect	B94060079		2x			4G (Cat M1/NB1)
ICC1324-Connect SP	B94060074		2x
ICC1324-Home Plus	B94060078		1x
ICC1324-Home	B94060077

info

If you can't see configuration options in the Configuration Interface mentioned here, the guide doesn't apply to your Charge Controller. Use the table above for reference.

3. Requirements

Make sure that

• The Charge Controller of your Charge Controller has a GSM module and a corresponding antenna
• A SIM card from the Backend vendor or Network operator of choice is present and activated
• A SIM card is inserted in the SIM card slot of your Charge Controller

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The SIM card must be able to access APN networks and be able to connect to the Internet.

4. Enabling GSM

1. Apply the following configuration:

Location in Configuration Interface	Parameter	Value	Info
NETWORK > GSM	Show Modem Configuration	Show
NETWORK > GSM	Access Point Name (APN)	Refer to your Mobile Network Provider	Access Point Name of the mobile network to be used when establishing connections to the backend system via the built-in modem.
NETWORK > GSM	SIM Card PIN Number	Refer to your Mobile Network Provider	To unlock your SIM card, you must enter the corresponding PIN here. Your network provider will also provide you with the PIN together with the SIM card. If this isn't the case, you should contact your network provider. If the SIM has no active PIN: Leave this field empty. The PIN cannot be managed through the Configuration Interface.
NETWORK > GSM	Network selection mode	Auto (recommended in most cases)	Here you can select whether the GSM modem should automatically (Auto) search for Mobile Network Operators (Network operators) or connect automatically or manually. We recommend to generally set the mode to Auto. However, in regions with low network coverage, the GSM module may often jump between networks in Auto mode. In this case, the Manual makes more sense.
NETWORK > GSM	Modem Access Technology	Auto (recommended in most cases)	Choose the cellular generation to use for communication to the Backend. In Auto mode the modem automatically selects the best available standard. We generally recommend auto. This usually ensures a stable connection. However, if you're experiencing stability issues, experiment with different cellular technologies.

1. At the bottom of the Configuration Interface, click , then click to apply the changes

5. Checking the internet connection

In the Configuration Interface, under State > Mobile Network Operator, you can see if the Charge Controller is connected to the Internet.

Another way to check if everything is set up correctly is to set up the network settings manually on a mobile phone and test for Internet access through it.

6. Set the Network Operator manually

1. In the Configuration Interface under Network > GSM, set Network selection mode to Manual. This causes the GSM modem to attempt to connect only to the network of the provider defined in the Requested Network operator field.
2. Enter the name of the desired provider there.

name formats

You must observe the correct format when entering the name. You can also configure this in the Network operator name format field. Alphanumeric short, for example, corresponds to a name with up to 8 characters.

Scanning for networks

If you don't know the correct name with the corresponding format,

1. Scan for available networks by enabling Scan network operators at boot
2. At the bottom of the Configuration Interface, click , then click to apply the changes

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After each restart, the Scan network operators at boot parameter is automatically set to Off.

3. Wait around 1-2 minutes while the Charge Controller scans for networks in the background
4. After waiting, refresh the Legacy Configuration Interface (like you would any other website)
5. In the Legacy Configuration Interface, under State, all available Mobile Network Operators are displayed under Available networks.

All available Mobile Network Operators are displayed in the three different input formats.

Format	Example
Alphanumeric long	Telekom.de
Alphanumeric short	TDG
Numeric	26201

6. Transfer the name of the desired provider into the Requested Network operator field, respecting the required format.

Your network isn't listed?

Get in touch with your Mobile Network Operator if the network isn't showing up even after the recommened waiting period.

With the selection Manual/Auto the Charge Controller first tries to connect manually to the specified Mobile Network Operator. If this fails, the Charge Controller switches to Auto mode.

7. At the bottom of the Configuration Interface, click , then click to apply the changes

7. Avoid roaming charges

tip

Check if you do need to pay for roaming with your network provider

To avoid possible roaming charges, for example at national borders, or in case of unstable network connections, under Network > GSM, set the Mobile Network Operator manually.