IMPORTANT SAFETY INSTRUCTIONS
Keep the manual for future reference.
This section contains safety information that must be observed at all times when working.
The product has been designed and tested in accordance with international safety requirements. As with all electrical or electronical devices, some residual risks remain despite careful construction. To prevent personal injury and property damage and to ensure long-term operation of the product, read this section carefully and observe all safety information at all times.
WARNING
Danger to life due to electric shock
Under fault conditions, when working on the power supply circuit there may be dangerous voltages present on the product. This can result in death or serious injury.
- For power supply units with a fixed connection, make sure that a disconnection unit (e.g. miniature circuit breaker) is present outside the power supply unit.
- For power supply units with a plug connection, make sure that the electrical outlet for the power supply unit is close to the power supply unit.
- The disconnection unit and the electrical outlet for the power supply unit must be freely accessible at all times.
CAUTION
Damage due to electromagnetic radiation
This product emits electromagnetic radiation during operation, which may interfere with the operation of other devices and active body aids (e.g. pacemakers).
- Persons must not remain closer than 20 cm (8 in) to the product for long periods of time.
NOTICE
Damage to the product due to condensation
If the product is moved from a cold environment to a warm environment, condensation may form in the product. This can damage the product or impair its functionality.
- When there are large temperature differences, wait until the product has reached room temperature to connect the voltage supply.
- Make sure the product is dry.
NOTICE
Manipulation of system data in networks
You can connect the supported SMA products to the Internet. When connected to the Internet, there is a risk that unauthorized users can access and manipulate the data of your system.
- Set up a firewall.
- Close unnecessary network ports.
- If absolutely necessary, only enable remote access via a virtual private network (VPN).
- Do not use the port forwarding feature. This also applies to the used Modbus ports.
- Disconnect system components from other network components (network segmentation).
DHCP Server is recommended
The DCHP server automatically assigns the appropriate network settings to your nodes in the local network. A manual network configuration is therefore not necessary. In a local network, the Internet router is usually the DHCP server. If the IP addresses in the local network are to be assigned dynamically, DHCP must be activated in the Internet router (see the Internet router manual). In order to receive the same IP address by the internet router after a restart, set the MAC address binding.
In networks where no DHCP server is active, proper IP addresses must be assigned from the free address pool of the network segment to all network participants to be integrated during commissioning.
IP addresses of Modbus devices
In systems with Modbus devices, static IP addresses must be assigned to all Modbus devices. Suitable IP addresses can be assigned to the Modbus devices from the free address supply of the network segment either manually or dynamically via DHCP.
If the IP addresses are to be assigned dynamically, DHCP must be activated in the Internet router (see the Internet router manual). Make sure that the Modbus devices do not contain variable IP addresses but always the same IP addresses (static DHCP).
This also applies to Data Managers that are used as subordinate devices.
If IP addresses of Modbus devices have been changed, all devices must be restarted.
Communication disturbances in the local network
The IP address range 192.168.12.0 to 192.168.12.255 is occupied for communication amongst SMA products and for direct access to SMA products.
Communication problems might occur if this IP address range is used in the local network.
- Do not use the IP address range 192.168.12.0 to 192.168.12.255 in the local network.