MC_ReadNcIoInput

The MC_ReadNcIoInput function block can be used to read I/O inputs of the axis.

Inputs

VAR_INPUT
    Execute           : BOOL;
    Device            : E_NcIoDevice := E_NcIoDevice.NcIoDeviceDrive;
    NcIoInput         : E_NcIoInput := E_NcIoInput.NcIoInputnState1;
    BitSelectMask     : DWORD := 16#0;
END_VAR

Name	Type	Description
Execute	BOOL	The command is executed with a rising edge.
Device	E_NcIoDevice	Selection of the Nc axis component whose I/O object is to be read (encoder or drive).
NcIoOutput	E_NcIoInput	Choice of the sub-object whose value is to be read (e.g. nState1).
BitSelectMask	DWORD	Mask for selecting which bits are to be read.

Inputs/outputs

VAR_IN_OUT
    Axis : AXIS_REF;
END_VAR

Name	Type	Description
Axis	AXIS_REF	Axis data structure that unambiguously addresses an axis in the system. Among other parameters it contains the current axis status, including position, velocity or error state.

Outputs

VAR_OUTPUT
    BitValues         : DWORD;
    Done              : BOOL;
    Busy              : BOOL;
    Error             : BOOL;
    ErrorID           : UDINT;
END_VAR

Name	Type	Description
BitValues	DWORD	Values of the corresponding read bits.
Done	BOOL	TRUE if the command was executed without errors.
Busy	BOOL	TRUE as soon as the command is started with Execute and as long as the command is processed. If "Busy" is FALSE, the function block is ready for a new order.
Error	BOOL	TRUE, if an error occurs.
ErrorID	UDINT	If the error output is set, this parameter supplies the error number.

Requirements

Development Environment	Target platform	PLC library to include
TwinCAT v3.1.4024	PC or CX (x86)	Tc2_MC2