AB-Controlnet - An Overview

ControlNet / Fieldbus

Strictly scheduled and highly deterministic. Physical layer signaling uses Manchester code at 5 Mbit/s. Link Layer is designed for cyclic data exchange. It operates in cycles called Network Update Intervals. Each NUI has three phases . 1) scheduled traffic 2) unscheduled traffic 3) maintenance The maximum size of a scheduled or unscheduled ControlNet data frame is 510 Bytes. Application layer is based on CIP which is also used in DeviceNet and IP/Ethernet.