MC_CamTableSelect_BkPlcMc (from V3.0)

The function block initializes a variable of type MC_CAM_ID_BkPlcMc, thereby preparing a cam plate for the coupling of two axes.

Inputs

VAR_INPUT
    Execute:            BOOL;
    Periodic:           BOOL;
    MasterAbsolute:     BOOL;
    SlaveAbsolute:      BOOL;
ND_VAR

Name	Type	Description
Execute	BOOL	A rising edge at this input starts the command.
Periodic	BOOL	Not supported: FALSE is currently to be passed here.
MasterAbsolute	BOOL	Not supported: TRUE is currently to be passed here.
SlaveAbsolute	BOOL	Not supported: TRUE is currently to be passed here.

Inputs/outputs

VAR_INOUT
    Master:             Axis_Ref_BkPlcMc;
    Slave:              Axis_Ref_BkPlcMc;
    CamTable:           MC_CAM_REF_BkPlcMc;
END_VAR

Name	Type	Description
Master	Axis_Ref_BkPlcMc	Here, the address of a variable of type Axis_Ref_BkPlcMc should be transferred.
Slave	Axis_Ref_BkPlcMc	Here, the address of a variable of type Axis_Ref_BkPlcMc should be transferred.
CamTable	MC_CAM_REF_BkPlcMc	A variable of type MC_CAM_REF_BkPlcMc should be transferred here.

Outputs

VAR_OUTPUT
    Busy:               BOOL;
    Done:               BOOL;
    Error:              BOOL;
    ErrorID:            UDINT;
    CamTableId:         MC_CAM_ID_BkPlcMc;
END_VAR

Name	Type	Description
Busy	BOOL	Indicates that a command is being processed.
Done	BOOL	This indicates successful initialization of CamTableId.
Error	BOOL	The occurrence of an error is indicated here.
ErrorID	UDINT	An encoded indication of the cause of the error is provided here.
CamTableId	MC_CAM_ID_BkPlcMc	Returns a variable of type MC_CAM_ID_BkPlcMc, which can be passed on to a function block of type MC_CamIn_BkPlcMc.

Behavior of the function block

On a rising edge at Execute the function block checks the transferred axis interface. A number of problems can be detected and reported during this process:

If CamTable.pTable is not initialized the system responds with Error and ErrorID:=dwTcHydErrCdPtrPlcMc.
If CamTable.nLastIdx is not greater than CamTable.nFirstIdx the system responds with Error and ErrorID:=dwTcHydErrCdTblEntryCount.
If CamTable.nFirstIdx and CamTable.nLastIdx define a table with more than 100 rows the system responds with Error and ErrorID:=dwTcHydErrCdTblLineCount.
If MasterAbsolute or SlaveAbsolute are not set or Periodic is set, the system responds with Error and ErrorID:=dwTcHydErrCdNotSupport.

If these checks could be performed without problem, CamTableId is initialized. The data from CamTable and the input data of function block are used for this purpose. CamTableId is marked as valid and modified. Done is used to report execution of the command.

A falling edge at Execute clears all the pending output signals.

	This function block requires no time for executing its tasks. The output Busy will never assume the value TRUE and only exists for compatibility reasons.