Modeling: Before we can control a system and make it behave in a desired manner, we need to represent the input-output behavior of the system in a form that is suitable for mathematical analysis.

In the case of constant exogenous signals, asymptotic output tracking and disturbance rejection can be achieved by including “integral action” in the controller.

As its name implies, an IOC often performs input/output operations to attached hardware devices. An IOC associates the values of EPICS process variables with the results of these input/output …

L Stability Input-Output Models: y = Hu u(t) is a piecewise continuous function of t and belongs to a linear space of signals

Input or control (process) input is a quantity that we can adjust directly. By adjusting the input, we hope to see the effect on the output in a favorable way. Output or process output is the quantity we want to …

The I/O module is given direct control over the memory via the DMA mechanism. The processor is only involved at the beginning and the end of the data block movement.

Based on the status of the devices sensed or the process values measured, the CPU issues commands that control the output field devices. An I/O module is a plug-in–type assembly containing circuitry …