MC_ExtSetPointGenFeed
The MC_ExtSetPointGenFeed function is used to feed set values from an external setpoint 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 setpoint generator is usually a PLC function block that calculates cyclic set values for an axis and can therefore substitute the internal setpoint 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
Name | Type | Description |
|---|---|---|
Position | LREAL | Set position from an external setpoint generator |
Velocity | LREAL | Set velocity from an external setpoint generator |
Acceleration | LREAL | Set acceleration from an external setpoint generator |
Direction | DINT | Set direction from an external setpoint generator. ( -1 = negative direction, 0 = standstill, 1 = positive direction) |
Inputs/outputs
VAR_IN_OUT
Axis : AXIS_REF;
END_VAR
Name | Type | Description |
|---|---|---|
Axis | 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. |
Requirements
Development environment | Target system type | PLC libraries to include |
|---|---|---|
TwinCAT v3.0.0 | PC or CX (x86 or x64) | Tc2_MC2 |