Timing Challenges in Multiaxis Robotics and Machine Tool Applications

Industrial robots and modern CNC machine tools can have 6 and 5 axes of motion, respectively. Each axis comprises a servo drive, a motor, and sometimes a gearbox between the motor and the axis joint, or end effector. These are then controlled via an industrial Ethernet network, which presents a unique set of challenges, most of which can be solved with specialized components from Analog Devices.

Maintaining perfectly synced timing between the various components of robotic industrial machinery is critical, but also extremely challenging. The control cycle is governed by the underlying pulse width modulation (PWM) cycle of the underlying servomotor drive. Data transmission delays can be caused by modern quantities of data being forced through antiquated PHYs and switches at the network interfaces. With the ADIN1300 and ADIN1200 low-latency PHYs, data throughput is greatly increased, leading to higher-performing manufacturing operations.   

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