Overview of EtherNet/IP™, Modbus TCP LEDs

The following figure shows the LEDs of the EtherNet/IP™, Modbus TCP design:

[1]

"L/A" LED (X43_1/X43_2)

[4]

"USR" LED

[7]

"L/A" LED (X4233_1)

[2]

"PLC" LED

[5]

"NS" LED

[8]

"L/A" LED (X4233_2)

[3]

"IEC" LED

[6]

"MS" LED