2 Safety
SMA Solar Technology AG
Installation Manual
9
EDMM-WAGO-IO-IA-en-11
Use of Ethernet devices
Please observe the following information if you use Ethernet devices in your system:
• Do not connect the control components and control networks with an open network such as the Internet.
Always install control components and control networks behind a firewall.
• Restrict physical and electronic access to all automation components to a group of authorized persons.
• Be sure to change any automatically generated passwords before initial commissioning. This will reduce the
risk of unauthorized persons gaining access to your system.
• Regularly change your passwords. This will reduce the risk of unauthorized persons gaining access to your
system.
• If remote access to control components and control networks is required, use a virtual private network (VPN)
whenever possible.
• Carry out regular threat assessments. This will allow you to make sure that the measures in place match your
protection needs.
• When it comes to the safety-oriented design of your system, use defense in depth mechanisms to restrict
access to and control of individual products and networks.
Summary of Contents for Modbus EDMM-10
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