IEC 61131-3 PLC languages: which one to use
Ladder, function block, structured text, and the rest — what each of the five languages is good at and how shops actually mix them.
Motion control
Coordinated servo control for positioning and robotics.
Coordinated control of position, velocity, and torque across servo axes: point-to-point moves, electronic gearing and camming, and multi-axis interpolation for robotics and CNC.
Use the concept: Motor running current calculator
In depth
Motor kW, current, efficiency and power factor: keep the quantities straight
A three-phase example distinguishes shaft output, real input power, apparent power and running current, with the limits of a simple estimate.
EtherCAT explained: on-the-fly frames and sub-microsecond synchronization
How EtherCAT processes Ethernet frames on the fly, why distributed clocks matter for motion control, and when to choose it over PROFINET or EtherNet/IP.