MC_ExtSetPointGenFeed

MC_ExtSetPointGenFeed 1:

The MC_ExtSetPointGenFeed function is used to feed set values from an external set value generator into an axis. The function copies the data instantaneously into the cyclic axis interface (fExtSetPos, fExtSetVelo, fExtSetAcc and nExtSetDirection). The function result of MC_ExtSetPointGenFeed is not used and therefore always FALSE.

An external set value generator is usually a PLC block that calculates cyclic set values for an axis and can therefore substitute the internal set value generator in an NC axis.

See also: MC_ExtSetPointGenEnable and MC_ExtSetPointGenDisable

Inputs


VAR_INPUT
    Position     : LREAL;
    Velocity     : LREAL;
    Acceleration : LREAL;
    Direction    : DINT;
END_VAR

Position

Set position from an external set value generator

Velocity

Set velocity from an external set value generator

Acceleration

Set acceleration from an external set value generator

Direction

Set direction from an external set value generator. ( -1 = negative direction, 0 = standstill, 1 = positive direction)

Inputs/outputs


VAR_IN_OUT
    Axis     : AXIS_REF;
END_VAR

Axis

Axis data structure

The axis data structure of type AXIS_REF addresses an axis uniquely within the system. Among other parameters it contains the current axis status, including position, velocity or error status.