This paper describes on the recent trends of network structure of BEMS (Building and Energy Management System) and measures of BEMS against the risks of cyberattacks. The network of BEMS consists of three networks, such as internet, main network and field networks which are work together to cooperate with each other. By having the linkage to internet, BEMS becomes to have the risks from cyber-attacks. This paper describes how to reduce the risks of cyber-attacks to BEMS.
This paper explains the network configuration of BEMS and the devices subject to cyber risk, and the contents of cyber-attacks on these devices and the basics of countermeasures (cyber security). The following three requirements as the basis of security control as a cyber-security measure of BEMS are described.
1. Connect only to trusted parties.
2. Connect only to reliable devices / devices.
3. Implementation of anti-virus measures.
The detail of specific contents of implementing these three requirements in BEMS are also explained. Cyber risk countermeasures are an indispensable technology in the digital society of the future, and effective and highly effective economic cyber risk is desired.