Prior to the late 1980's we used proprietary RTU products for control and monitoring.  At that time we implemented the control and telemetry into Modicon Micro-PLCs.  In recent 10 years, we have chosen the Allen-Bradley family of PLCs as our preferred PLC platform.  We have developed control for distributed water systems, sewer lift stations, metering sites, and a wide variety of applications for the Water/Wastewater market.

Allen-Bradley PLCs

• CompactLogix
• SLC-500
• Micrologix 1000, 1100, 1400, 1500
• PLC-5