Beckhoff EL72 1-901 Series, Руководство пользователя

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Commissioning
EL72x1-901x 137 Version: 1.9
Fig. 172: Global variables
Once the global variables have been declared, programming can commence. Start with declaring local
variables (see Fig.
Local variables ).
MC_Direction is an enumeration type that specifies the direction of travel for the block MC_MoveVelocity ,
which in turn initiates continuous travel of the motor.
An axis reset is carried out with the function block
MC_Reset . Absolute positioning is carried out with the
function block MC_MoveAbsolute . The current axis position can be read with the function block
MC_ActualPosition .
MC_Power enables the axis; MC_Stop is required for stopping the axis.
Fig. 173: Local variables
The program code is as follows (see Fig. Program code ):