MCV_ChgParamSet

Change parameter set

A parameter set can be changed with this function block. The original list of the selected parameter set is interpreted, and the parameters take effect in the ISG-MCP. For example, it is necessary to change to another parameter set when changing tools.

CAUTION
During the parameter set change, the axis must be at standstill and motion commands must not have been or must not be started for the axis. The axis must not be moved again until all parameters of the new parameter set have been read in and have taken effect in the controller (`Valid = TRUE`).

CAUTION
The controller's behavior may change when the parameter set is changes. This may modify or deactivate functions critical to safety.

Block diagram

Parameters of the function block

VAR_IN_OUT
	Axis	AXIS_REF	Axis reference.
VAR_INPUT
	Execute	BOOL	Start changing of parameter set at rising edge.
	NcListTypeIn	STRING	Identification for parameter or list type, e.g. ‘ACHS_MDS’.
	NcParamSetIDIn	UINT	Number of parameters set to be changed. The value 0 for the parameter set ID indicates the default parameter set that is interpreted and activated while the start up of the Motion Controller. Please consider the directive for alternative parameter sets.
VAR_OUTPUT
	Valid	BOOL	Indicates if the change of the parameter set has been successful.
	Busy	BOOL	Indicates if the function block is still busy.
	NCListTypeOut	STRING	Identification of parameter or list type, e.g. ‘ACHS_MDS’.
	NCParamSetIDOut	UINT	Number of the parameter set.
	NCParamConsistent	BOOL	Indicates if all parameters has been successfully set while changing the parameter set.
	NCWarning	BOOL	Indicates if a warning in the ISG-MCP has occurred.
	NCError	BOOL	Indicates if an error in the ISG-MCP has occurred.
	NCErrorCode	UDINT	Error identification of the error in the ISG-MCP.
	Error	BOOL	Indicates if an error has occurred. Change of parameter set is not executed.
	ErrorID	WORD	Error identification.

Behavior of the function block

The function block is in an error state if Error = TRUE. The parameter set has not been changed correctly. An error has occurred either in the function block itself or in the ISG-MCP. The NCError output parameter indicates whether an error has occurred in the ISG-MCP.
If ‘NCError’ = TRUE and NCParamConsistent = TRUE, the new parameter set has not been correctly interpreted. No new parameters have been read in and the old parameters remain unchanged.

CAUTION
If the function block assumes the error state when the parameter set is changed, i.e. ‘Error’ = TRUE and at the same time·`NCError = TRUE` and `NCParamConsistent = FALSE`, then the controller has inconsistent data. Either a new parameter set must be correctly read in or the controller must be restarted.

If the function block returns a warning (NCWarning = TRUE), it was not possible to accept at least one parameter and this parameter's value has been internally corrected by the controller.

CAUTION

If the parameter set are saved in files, the default parameter set for the specified axis is the one specified in the startup list. It is interpreted and activated while starting up the Motion Controller. Example for the first axis in the system:achs_mds[0] isgnc\listen\achsmds1.lisFor choosing the default parameter set NCParamSetIDIn has to be set to 0.The names of all further files with alternative parameter sets for this axis consist of the name of the default parameter set, appended with the underline sign ‘_’ and an additional number.achsmds1_1.lisachsmds1_2.lis...The appended number has to be set to NCParamSetIDIn if an alternative parameter set is to be activated. The files containing the alternative parameter sets must be in the same directory as the file of the default parameter set.