ILCon (ITF)

INTERFACE ILCon EXTENDS IActionProvider, ILevelControlled

In order to build a function block with a LCon behaviour, its action provider has to be decorated with this interface. This will determine the state machine which then forces the function block to the appropriate LCon behaviour.

See Decorators for more information about the concept.

A state chart for function blocks with LCon behaviour

Starting

⇒ StartAction is running, until xComplete is TRUE, xBusy ⇒ TRUE

Executing

⇒ CyclicAction is running until xComplete is TRUE

Cleaning

⇒ CleanupAction is running. At its end the ExitAction is probably executed one time.

After a Ready Condition as input, only the output states

Done (xComplete is TRUE) or Error (eErrorID ≠ ERROR.NO_ERROR) are possible.

After a Error Condition as input, only the output state

Error (eErrorID ≠ ERROR.NO_ERROR) is possible.

After a Abort Condition as input, only the output states

Resetting or Error (eErrorID ≠ ERROR.NO_ERROR) are possible.

(xBusy is still TRUE!)

Done

xDone ⇒ TRUE, xBusy ⇒ FALSE

Error

xError ⇒ TRUE, eErrorID ≠ ERROR.NO_ERROR, xBusy ⇒ FALSE

Resetting

⇒ ResetAction is running, until xComplete is TRUE.

After that:

- the outputs xDone and xError will be set to FALSE.

- The output eErrorID will be set to ERROR.NO_ERROR.

Methods:

StartAction, inherited from IStartActionProvider