Customer Situation   
Poreč riviera is one of the most successful tourist destinations in Croatia hosting more than one hundred twenty thousand tourists daily in summer season. While this is great for the economy of the seventeen thousand permanent inhabitants, such increase of population challenges the local infrastructure. Tourism is the main economical branch in this area, so it is critical to preserve natural beauties and with environmental changes wastewater treatment becomes even more important.    
To keep up with the increasing demand, Odvodnja Poreč, the municipal utility company responsible for filtering wastewater and sewage, had to optimize its infrastructure.  As a system integrator specialized in water and wastewater solutions, Elmap was in charge for the automation part of the four waste water treatment plants, overal integration and connection to a remote control management system that included also pumping stations distributed in four agglomerations with more than remote 80 facilities.

Objectives   
Automation and SCADA solution for 4 wastewater treatment plants with one main redundant controller and interconnected via public network (DSL) into one system.

• Control of all main systems in one WWTP with one redundant controller 
• Integration of different subsystems using different communication protocols 
• Integration of existing remote pumping stations to SCADA 
• Automated weekly/monthly reporting of KPIs, and long-term archiving of process data 
• Possibility for future expansions with 2 additional WWTP

Reliable and flexible plant automation with redundant configuration, standardized communication and maximum transparency 

• S7-1517H as main controller, SCALANCE for Profinet ring connection to the field 
• ET200 MP for I/O’s and as communication-converter to different subsystems 
• WinCC V7.5 and PM-ANALYZE running on SIMATIC IPC 547G 
• Existing devices are connected directly to WinCC using OPC 
• Configuration and PLC programming in TIA Portal.

• Automation for 4 new Wastewater Treatment Plants for riviera Poreč on the Adriatic coast in Croatia. 
• Integration of the 4 distributed locations into one system and control of all main systems with one redundant controller S7-1517H
• Elmap d.o.o. is a system integrator specialized in water and wastewater solutions and was subcontractor for overall integration and automation. www.elmap.hr/en/
  
• Odvodnja Poreč d.o.o. is the public water supplier and water utility company. The company currently manages more than 300 kilometers of wastewater collection systems, as well as sophisticated treatment facilities constructed as part of an EU project.