Siemens IQ-400E RJ45 Green LED ON – Host connection successful

What does RJ45 Green LED ON mean?

The green LED on the IQ-400E's RJ45 connector is on, indicating that a physical network link has been successfully established with the host system.

• Successful physical network connection.
• Properly connected network cable.

Click steps to track your progress.

1. 1

   No action is needed; this is a normal indication of a healthy physical connection.

2. 2

   Proceed to check the Yellow LED for active communication data transfer.

3. 3

   If communication is expected but not occurring, ensure network settings (IP address, etc.) are correct.