Intelligent Motion Control and Machine Vision Motion Control Overview Motion Control Solutions to Satisfy Market Demands Align with the PC-based control to provide latest processors, flexibility and main stream Ethernet fieldbus, Advantech intelligent motion control product division provides solutions to OEM Machine Makers and System Integrators. The core technologies are based on state-of-art DSP/FPGA/SoC processors, Advantech’s own softmotion kernel for trajectory and control, EtherCAT motion bus and configuration utility. With one Softmotion kernel, users can leverage the new, high performance computing hardware and latest application functions supported in the kernel, it will help machine makers to enhance their machine features and performance. With the support of EtherCAT open standard protocol, users can leverage the high speed cycle time for high performance synchronous motion control, the Ethernet cable connections to save wiring costs, and users can choose from multiple suppliers for servo motors, Linear motors and IO. Application-Ready Embedded Motion Control In any vertical specific application, machine builders and system integrators are looking for application-ready control platforms. The main reasons for this consideration are system integrity and system stability. Compared with plug-in motion controllers plus industrial PCs, the application-ready motion control platform provides a well-integrated system with validation to guarantee stability. Furthermore, the concept of solution selling can bring higher add-on value to system integrators and machine builders. Motion Control Technology There are three basic types of motion control system: Point-to-point, Contouring and Synchronization. Point-to-Point (PTP) Motion Point-to-point (PTP) movement is the most basic form of motion control. The principle function of the PTP is to position the tool from one point to another within coordinate system. It is used when precise start and stop position is important, but the path is irrelevant. Velocity, time, and acceleration can be defined for point-to-point moves, allowing the controller to construct either a T or an S-curve move profile. a b c a: Line b: PTP c: PTP Contouring (Continuous Trajectory) To achieve contoured motion, a series of points is provided during programming, and the motion controller extrapolates a smooth line or curve from these points. Unlike point-to- point motion, contouring guarantees that the system passes through each point, using either linear or circular interpolation. Between the points, linear or circular interpolation is performed, leading to a contour described by a succession of linear segments. In a contoured move, a time to complete the move is specified, but the actual move profile is determined by the motion controller. Ethernet-Based Motion Control Solutions Motion control is growing in complexity as the number of axis in newly developed machines with motion control increases each year. Distance is also becoming an issue, as motors are located further and further away from the host computer. Synchronization All synchronization controllers follow the Master- Slave principle. Where the Master can freely move with any motion profile under control of any speed curve and one or several Slaves exactly follow the Master motion in terms of position and speed. Thecontrolisbasedonincrementalpositionfeedbackbymeansofencodersonbothsides. Many applications just use a measuring wheel with encoder instead of a Master drive. It is possible to preset every speed or gear ratio by means of adjustable impulse scaling factors. Centralized Motion Control Distributed Motion Control * TB: Terminal Board Chapter 2 Table of Contents Table of Contents