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HioSys I/O Systems

HioPlant

The data-type HioPlant is a Generator that is suited to model the I/O-system I/O plant. An I/O plant S_PE = (Sigma_PE,L_PE) describes a process (or process component) as a mechanism, by which an operator can manipulate the environment of the process (component). Hence, an I/O plant is a discrete event system with two plant-I/O ports to interact with an operator and its environment, respectively. The event sets are denoted Up and Yp for operator interaction and Ue and Ye for environment interaction. Thus, the overall alphabet is composed as disjoint union Sigma = Up∪Yp∪Ue∪Ye.

I/O plant: Definition

An I/O plant is a tuple S_PE = (U_P,Y_P,U_E,Y_E,L_PE), where

• Sigma_PE is an alphabet with Sigma_PE := Sigma_P∪Sigma_E,

• L_PE is a language over Sigma_PE, and

• (U_P,Y_P) and (U_E,Y_E) are plant-I/O ports of S_PE.

As a consequence of its definition, an I/O plant has the language format L_PE ⊆ Closure((Y_PU_P+Y_EU_E)*) and thus exhibits alternation of input and output and interaction with either the operator or the environment.
By the function IsHioPlantForm, an HioPlant generator can be tested for compatibility with the above definition.

HioSys Home | HioSys I/O Systems

libFAUDES 2.32b --- 2024.03.01 --- with "synthesis-observer-observability-diagnosis-hiosys-iosystem-multitasking-coordinationcontrol-timed-simulator-iodevice-luabindings-hybrid-example-pybindings"