Description

Function description

This function block is to control the execution sequences.

For example, you can go through step by step, processing transition conditions can be turned on or off or the sequence can be reset to its initialization state.

WARNING

UNEXPECTED SYSTEM BEHAVIOR

Do not use INIT, CLEAR, DISTRANS, DISACT, STEPUN and STEPDEP to find errors when controlling machine tools, processes or material management systems, if they are running.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

UNINTENDED EQUIPMENT OPERATION

Avoid using SFCCNTRL command with CLEARCHART, FREEZCHART, INITCHART, SETSTEP and RESETSTEP commands altogether.
Carefully check the interactions between these function blocks and analyze the resulting impact on SFC.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

UNINTENDED EQUIPMENT OPERATION

Do not use more than one instance of this block for each SFC section.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

EN and ENO can be configured as additional parameters.

Representation in FBD

Representation in LD

Representation in IL

Representation:

CAL SFCCNTRL_Instance (CHARTREF:=SectionName,
    INIT:=InitializeChart, CLEAR:=ClearChart,
    DISTIME:=DisableTimeCheck, DISTRANS:=DisableTransitions,
    DISACT:=DisableActions, STEPUN:=StepUnconditional,
    STEPDEP:=StepTransDependent, RESETERR:=ResetTimeErrors,
    DISRMOTE:=DisableRemoteControl,
    ALLTRANS:=CalcAllTransitions, RESSTEPT:=ResetStepTimes,
    INITST=>InitState, CLEARST=>ClearState,
    TIMEDIS=>TimeCheckDisabled, TRANSDIS=>TransitionsDisabled,
    ACTDIS=>ActionsDisabled, MODECHG=>OperatingModeChanged,
    STATECHG=>StatusChanged, TIMEERR=>TimeError,
    TERRACT=>PendingTimeError)

Representation in ST

Representation:

SFCCNTRL_Instance (CHARTREF:=SectionName,
    INIT:=InitializeChart, CLEAR:=ClearChart,
    DISTIME:=DisableTimeCheck, DISTRANS:=DisableTransitions,
    DISACT:=DisableActions, STEPUN:=StepUnconditional,
    STEPDEP:=StepTransDependent, RESETERR:=ResetTimeErrors,
    DISRMOTE:=DisableRemoteControl,
    ALLTRANS:=CalcAllTransitions, RESSTEPT:=ResetStepTimes,
    INITST=>InitState, CLEARST=>ClearState,
    TIMEDIS=>TimeCheckDisabled, TRANSDIS=>TransitionsDisabled,
    ACTDIS=>ActionsDisabled, MODECHG=>OperatingModeChanged,
    STATECHG=>StatusChanged, TIMEERR=>TimeError,
    TERRACT=>PendingTimeError) ;

Parameter description

Description of input parameters:

Parameter	Data type	Description
`CHARTREF`	SFCCHART_STATE	Association with the SFC section to be controlled is done via the name of the section If an SFC section is created then it is automatically assigned with a variable of data type `SFCCHART_STATE`. The variable that is created always has the name of the respective SFC section.)
`INIT`	`BOOL`	0->1: Reset all active steps in the sequence. 1->0: Start standard sequence (set initial step)
`CLEAR`	`BOOL`	0->1: Reset all active steps in the sequence.
`DISTIME`	`BOOL`	1: Turn off time monitoring
`DISTRANS`	`BOOL`	1: Turn of evaluation of the transitions (freeze sequence)
`DISACT`	`BOOL`	1: Turn off processing of the actions and reset all actions in the sequence
`STEPUN`	`BOOL`	0->1: Activate the next step, independent of the transition condition
`STEPDEP`	`BOOL`	0->1: Activate the next step, dependent on the transition condition
`RESETERR`	`BOOL`	0->1: Reset the time monitoring error.
`DISRMOTE`	`BOOL`	1: Prevent control of the sequence using processing parameters of the Online Animation Panel
`ALLTRANS`	`BOOL`	1: Calculate all transition sections
`RESSTEPT`	`BOOL`	0->1: Deactivate and reset time calculation 1->0: Restart time calculation Reminder: If the `RESSTEPT` function is active, steps with a defined delay time are never activated (With `RESSTEPT`, the current step time is reset continually and so the defined delay time can never be achieved.)

Description of output parameters:

Parameter	Data type	Description
`INITST`	`BOOL`	1: Sequence was started normally (on for only one cycle)
`CLEARST`	`BOOL`	1: Sequence was reset, i.e. the sequence has no active step
`TIMEDIS`	`BOOL`	1: Time monitoring was turned off
`TRANSDIS`	`BOOL`	1: Evaluation of the transitions was turned off
`ACTDIS`	`BOOL`	1: Processing of the actions was turned off and all actions in the sequence were reset
`MODECHG`	`BOOL`	1: Operation mode of the sequence was changed (on for only one cycle)
`STATECHG`	`BOOL`	1: Status of the sequence was changed (on for only one cycle)
`TIMEERR`	`BOOL`	1: Error in the time monitoring has occurred (on for only one cycle)
`TERRACT`	`BOOL`	1: There is currently an error in the time monitoring