1. System Operation Description:

System Objectives:

- Measure influent wastewater parameters using 4-20mA analog signals from the Unitronics PLC.

- Store data using a 16GB memory card.

- Remote system monitoring via internet and web server.

- Complete SCADA system running on a web server with a central control panel.

- PLC + HMI touchscreen with 800x600 (SVGA) resolution.

- Monitoring and communication software.

- Uses a 3G communication module for connectivity.

- Data is transmitted to the environmental resource center via FTP server and client.

- PLC supports SQL client, TCP/IP, Modbus Serial & TCP/IP, E-Mail & SMS, etc.

- Remote software upgrade via internet/3G network, secure login with password.

- PLC allows expansion to 2048 I/Os.

- SMS alerts and audible alarms whenever a system error occurs.