Which communication LEDs must be implemented (are mandatory) to achieve certification
PROFINET:
Signal LED must be available on case. A red blinking LED must blink 3 time in 3 seconds = 1 Hz if signaling is forced over DCP. On NXHX90 this is the COM0 LED.
EthernetIP
EtherCAT:
For EtherCAT take the document ETG700. EtherCAT has strong rulse for printing lables on the case and LED.
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