- PID algorithms that adapt to load and setpoint variations
- Integrated control is standard with the I/A Series system
Built on a wealth of experience and know-how controlling industrial processes, I/A Series is unsurpassed for its integrity, 
security, and reliability. Built-in alarming and failsafe operations are standard with over 60 field-proven control algorithms.
Sequential Control
The structured sequence block family provides enhanced automated sequencing with easy-to-use High Level Block Language (HLBL) and Sequential Function Charts (SFC).
Ladder Logic
Each I/A Series discrete I/O module is a micro PLC providing 2ms/5ms ladder logic performance for interlocking applications.
Adaptive Control Technologies
The I/A Series EXACT Multivariable Controller with Adaptive Multivariable Control is easily applied by control engineers familiar with PID technology. It provides feedforward tuning of up to four variables, plus 
tuning of the feedback controller. On the low end, it provides superior control of a single difficult-to-control loop with multiple load upsets. On the high end, multiple blocks can interconnect interactive signals among the loops to improve control for up to five interacting control loops in a five-by-five cross-coupled scheme.
EXACT MV provides robust adaptive technology that automatically adjusts to the gains and dynamics of the process, and thus, achieves closer control to setpoints.
EXACT MV provides innovative technology specifically designed to control processes with variable gains and dynamics, multivariable interactions, measured load upsets, and unmeasured disturbances. Adapted tunings are gain-scheduled to anticipate non-linear effects.
Since EXACT MV is more robust than other adaptive controllers, it can be used in a wide range of applications, from simple ratio control with feedback trim to multiple interacting loops with feedforward additive or multiplicative compensation for measured load and interactive variables and linear and non-linear feedback compensation for constraint handling and unmeasured disturbances.
EXACT MV provides faster and higher gain feedback for processes with lags greater than the deadtime. This results in improved unmeasured disturbance rejection resulting in tighter control. In addition, dead time algorithms can outperform conventional PID algorthms when dead time is greater than the lag times. Furthermore, EXACT MV does not require detuning to achieve robustness since it adapts to process changes. EXACT MV lends itself easily to cascade connections and to upper level optimization software packages, such as non-linear and linear programming and others.
Setpoint compensation for the controller provides good setpoint response for optimum load rejection tuning.
Multivariable Predictive Control
Connoisseur® software optimizes manufacturing operations and makes performance improvements that pay for themselves --- typically in three to twelve months!
Connoisseur Model Predictive Control is comprehensive, advanced process control software that improves process profitability by enhancing quality, increasing throughput, and reducing energy usage. It uses modern, state-of-the-art technology to provide automatic control systems that are capable of releasing process potential. Predictive control helps manufacturing businesses realize their full potential by providing insight into process control strategies, resulting in improved quality and increased profits.
Current I/A Series user? Invensys offers you both the means to keep your plant operating at peak performance and the ability to keep your automation system current without the expense, downtime and the significant reinvestment of engineering and control strategy design that is necessary when replacing an older system. The Advantage Program is designed to allow you to upgrade components of your current I/A Series system easily and cost effectively by simply swapping out older components and replacing them with new hardware and software.
Moore, Bailey, Honeywell, Fisher, or Westinghouse user? Invensys’s superior Foxboro Migration program provides a fast, easy, low-cost, and low-risk solution to upgrade from legacy DCS systems to a new I/A Series system. Using our field-proven Plugged-in I/O modules, Invensys can upgrade your current system to the latest I/A Series system without lifting a process wire.
