Unlimited communication provides a reliable water supply via GPRS/EDGE controllers
The water infrastructure is antiquated in many parts of Romania and this is a problem for connected households and industrial companies.
Although around 75 to 80 percent of the households in the cities are connected to the water network, the quota in rural regions is less than 35 percent.
The water quality is also very poor and is often only sporadically available.
The application
Due to the inaccessible terrain and the lack of communication infrastructure, the acquired data must be consistently transmitted via GPRS/EDGE.
Old power distribution in a pumping station
The solution
New control cabinet system in the pumping stations following modernizationHistorical data is available in CSV format and imported directly into the Acron archive, evaluation, and analysis system. The IEC 60870-104 remote control protocol is used for cross communication between the external stations.
The necessary network connections are provided with the help of twelve PSI-MODEM-GSM/ETH modems. The high-performance devices support industrial Ethernet networks, over which the sensitive data is safely transmitted via the GSM network.
A firewall built into the modem protects the application against unauthorized access.
ILC 150 ETH and ILC 170 ETH controllers are used as the control system. These PLCs can be extended flexibly with analog or digital inputs as required. This enables optimum I/O configuration of each individual pumping station as well as the water reservoirs.
By using the Visu+ visualization software from Phoenix Contact, trend representation and overall alarm management can be implemented.
The use of switches from the Factoryline product range enables inexpensive expansion of the Ethernet network, whereby controllers, touch panels, distributed I/O components, and modems can optimally work together.
The QUINT POWER 24VDC/5A/3AC power supply units are used in the external stations. These ensure maximum system safety and withstand surge voltages up to 6 kV.
Summary
Through modernization, remote monitoring and access to all distributed stations is now ensured - visualization and logging in the control room protects all sensitive data.
The programmable logic controllers also protect against potential data loss in the event of interruption.