EtherCAT Slave Device and Multi-Protocol Industrial Ethernet Reference Design

This reference design implements a cost-optimized, high-EMC immunity EtherCAT slave (dual port) with an SPI interface to the application processor. The hardware design leverages the AMIC110 industrial communications processor to support multi-protocol industrial Ethernet and fieldbuses. The design is powered by a single 5V supply; the PMIC generates all necessary on-board rails. The EtherCAT slave stack can run on the AMIC110 or on an application processor using the Serial Peripheral Interface (SPI). Using hardware switches, the AMIC110 can be configured to boot EtherCAT slave firmware from SPI flash memory or from the application processor via SPI. The design has been tested for IEC61800-3 EMC immunity with a standard industrial PLC running an EtherCAT master. JTAG interface speeds custom firmware development.

characteristic

• ● Passed EtherCAT Slave Conformance Test (CTT)
• ● Utilizes AMIC110 communication processor to support multi-protocol industrial Ethernet and fieldbus with software programmability
• ● Running EtherCAT on both ports exceeds IEC61800-3 EMC immunity requirements:
• ● +/-6kV ESD CD, compliant with IEC 61000-4-2 requirements
• ● +/-4kV EFT, meets the requirements of IEC 61000-4-4 standard A
• ● +/-2kV surge, meets the requirements of IEC 61000-4-5 Standard A
• ● IEC61000-4-6 conducted radio frequency, meeting the requirements of standard A
• ● CISPR 11/EN55011 Class A powerful low-latency 10 or 100Mb Ethernet PHY DP83822
• ● Powerful low latency 10 or 100Mb Ethernet PHY DP83822
• ● Utilizes a single PMIC to power the entire board from a pre-regulated 5V supply for simple, cost-optimized power management
• ● Operates over the industrial temperature range, total board power consumption is less than 1.25W in typical use cases; no heat sink is required when operating in environments up to 85 ^o C