A water treatment system spanned the city and was monitorable from an industrial network. With an update plan for the next few years, the plant owner wanted to increase the network security in order to keep the infrastructure secure and meet local government regulations. However, within the city water treatment plant, there are different remote sites where water treatment systems use a large number of PLCs/ HMIs/ PCs to handle processes, which results in difficulty centrally managing and monitoring each site’s network real-time status. Moreover, there were only IT firewalls in the systems to prevent malwares from coming into the OT sites.
Considering the project manager is not an expert on network security, it was a challenge for his team to ensure that the network security was sufficient and to easily and efficiently maintain networks in the future daily operation. Due to high security concerns of city utilities, Moxa suggested that the project manager build a secured network with industrial grade EDS Series Ethernet switches, OT firewalls EDR series, and OT NMS MXview with high visibility to monitor network security and network devices security.