Together with Bilfinger Tebodin Netherlands, Armac is in the process of creating a controller for an existing Wastewater Treatment Plant (WWTP). The site on which it is situated is being redistributed, requiring the removal of the current controls. To keep the WWTP in operation, Armac is developing the control with a Unit Control Panel (UCP), suitable for future expansion, which includes a Siemens SIMATIC S7-1500F CPU. Close to the installation will be a remote I/O cabinet (ATEX zone 2). Communication between the two is by fibre-optic cable.