The SCADAPack® Series of compact Programmable Logic Controllers (PLC) provides Remote Terminal Unit (RTU) functions for use in SCADA and telemetry applications. SCADAPack controllers are programmable in a variety of programming environments, including Relay Ladder Logic, IEC 61131-3, and multitasking C/C++. The products also provide an unlimited number of PID controllers for feedback control and can be easily expanded for larger I/O counts. Real-time communications using industry-standard Modbus® and DNP3 protocols simplifies integration with SCADA software, MMIs, DCS systems, and intelligent instrumentation. Everything necessary for remote monitoring and control applications is provided.