MC_GrpReadBoolPar

Description

This function block reads a value from the specified Boolean group parameter. See Recovery of the System State After an Axis Error for more information.

MC_GrpReadBoolPar( Axesgroup_Ref GroupID, Uint BoolID) where BoolID can be one of the following 2 currently defined Booleans:

IGNORE_AXIS_ESTOP: ID = 1000 : The value read will be either TRUE or False as set by the MC_GrpWriteBoolPar function block.

AXIS_ESTOP_ACTIVE: ID = 1001 : This Read-only parameter will be asserted TRUE whenever an axis in the group is experiencing an Axis Estop Error. When there are no Axis Estop Errors present on the axes in a group, this parameter will be set to FALSE.

Figure 7-162: MC_GrpReadBoolPar

This function or function block returns cached data. See Programming a Dual Core Controller for more information.

Related Function Blocks

MC_GrpWriteBoolPar,MC_ErrorDescription

Coordinated Motion, the top-level topic for Coordinated Motion.

Arguments

For more details on how inputs and outputs work, refer to PLCopen Function Blocks - General Rules.

Input

Enable	Description	If True, then request to read a value from the specified Boolean group parameter.
	Data Type	BOOL
	Range	0, 1
	Unit	N/A
	Default	—
AxesGroupRef	Description	The axis group that the Boolean parameter value will be read from.
	Data Type	AXES_GROUP_REF
	Range	N/A
	Unit	N/A
	Default	—
ParamNum	Description	ParamNum can be one of the following two currently defined Booleans: IGNORE_AXIS_ESTOP: ID = 1000 : The value read will be either TRUE or False as set by the MC_GrpWriteBoolPar function block. AXIS_ESTOP_ACTIVE: ID = 1001 : This Read-only parameter will be asserted TRUE whenever an axis in the group is experiencing an Axis Estop Error. When there are no Axis Estop Errors present on the axes in a group, this parameter will be set to FALSE.
	Data Type	UINT
	Range	1000, 1001
	Unit	UINT
	Default	—

Output

Done	Description	If True, then the command completed successfully.
	Data Type	BOOL
Error	Description	If True, an error has occurred.
	Data Type	BOOL
ErrorID	Description	Indicates the error if Error output is set to TRUE. See the table in PLCopen Function Block ErrorID Output.
	Data Type	INT
ParamValue	Description	True or False
	Data Type	BOOL

Example

ST

Inst_GrpReadBoolPar( DoEnable, Group1_Ref, AXIS_ESTOP_ACTIVE );

IL

            BEGIN_IL "Instruction list"
This is a low-level language and resembles assembly  
     Cal Inst_GrpReadBoolPar( DoEnable, Group1_Ref, AXIS_ESTOP_ACTIVE )
END_IL

FBD

FFLD

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