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State Transition Timeout with EC3A-CPU Device (Likely Caused by FMMU Configuration) #319

@Formyown

Description

@Formyown

Environment

  • Version of ethercrab in use or git hash: 0eab87c
  • Operating system kind and version: MacOS 15.5 (24F74) Ubunut 22.04
  • EtherCAT devices in use: AMSAMOTION EC3A-CPU

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EC3A-CPU-20240919.xml.zip

log.txt

Description of the problem

During initialization of an EC3A-CPU device (Vendor ID: 0x00000b95, Product Code: 0x00000000), the state transition from PRE-OPERATIONAL to OPERATIONAL fails with a timeout. The device gets stuck during the SAFE-OPERATIONAL state transition, despite successful DC configuration and mailbox setup.

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