Reading the LED Status via CoE | 0xF915

The status of the LEDs can be read electronically via CoE object 0xF915:0. The status of the LEDs is displayed as a 32-bit value. The value is interpreted as follows.

Byte 1 indicates the flashing/lighting code with

0x00: LED off
0x01 to 0x82: flashing codes
0xFF: LED on

Byte 4 (R), byte 3 (G) to byte 2 (B) specify the color as an RGB code.

Byte 1 (flashing code)	Byte 2 blue (B)	Byte 3 green (G)	Byte 4 red (R)	Meaning
0x00	00	00	00	LED not present
0x00	FF	00	00	LED is off (blue)
0x00	00	FF	00	LED is off (green) Run LED: EtherCAT State Machine: INIT Signal LED: No signal at the input/output
0x00	00	00	FF	LED is off (red) Error LED: No error at the input/output
0x00	00	FF	FF	LED is off (yellow)
0x00	FF	FF	FF	LED is off (white)
0x01 to 0x14	00	FF	00	LED flashes at 1 Hz to 20 Hz (green)
0x80	00	FF	00	Run LED flashing uniformly (green): EtherCAT State Machine: PREOP
0x81	00	FF	00	Run LED flashing slowly (green): EtherCAT State Machine: SAFEOP
0x82	00	FF	00	Run LED flashing quickly (green): EtherCAT State Machine: BOOT
0xFF	FF	00	00	LED is on (blue)
0xFF	00	FF	00	LED on (green) Run LED: EtherCAT State Machine: OP Signal LED: Signal at the input/output
0xFF	00	00	FF	LED is on (red) Error LED: Error at input/output
0xFF	00	FF	FF	LED is on (yellow)
0xFF	FF	FF	FF	LED is on (white)

LED status using the ED2504 EtherCAT Terminal as an example

Reading the LED Status via CoE | 0xF915 1: