Device picture, connectors and LEDs
28/95
Sercos LEDs
LED
Color
State
Meaning
S
Number in picture:
(5)
Duo-LED red/green
(orange = red/green simultaneously)
(green)
On
CP4: Communication phase 4:
Normal operation, no error
(green)
Flashing
(2 Hz)
Loopback:
The network state has changed from „fast-forward“ to
„loopback“.
(green/
orange)
Flashing
(3 x green/3s)
CP3: Communication phase 3
(2 x green/3s)
CP2: Communication phase 2
(1 x green/3s)
CP1: Communication phase 1
(orange)
On
CP0:
Communication phase 0
(orange/
green)
Flashing
(2 Hz)
HP0:
Hot-plug phase 0
(1 x orange/3s)
HP1:
Hot-plug mode phase 1
(2 x orange/3s)
HP2:
Hot-plug mode phase 2
(orange)
Flashing
(2 Hz)
Identification:
Corresponds to C-DEV.Bit 15 in the Slave’s
Device Control indicating remote address allocation or
configuration errors between Master and Slaves.
(green/red)
Flashing
(2 Hz, min. 2s)
MST losses ≥ (S-0-1003/2):
Depends on IDN S-0-1003.
Corresponds to S-DEV.Bit 15 in the Device Status indicating a
communication warning (Master SYNC telegrams have not been
received).
(red/
orange)
Flashing
(2 Hz)
Application error (C1D):
See GDP & FSP Status codes class
error.
(red)
Flashing
(2 Hz)
Watchdog error:
Application is not running
(red)
On
Communication Error (C1D):
Error detected according to Sercos
third generation Class 1 Diagnosis, see SCP Status codes class
error.
(off)
Off
NRT-Mode:
(Non Real-Time Mode) No Sercos Communication
Number in picture:
(6)
Duo LED red/green
(off)
Off
This LED is not used.
L/A
Number in picture:
Ch0:
(7)
Ch1:
(9)
LED green
(green)
On
Link:
The device is linked to the Ethernet, but does not send/
receive Ethernet frames.
(green)
Flickering (load
dependent)
Activity:
The device is linked to the Ethernet and sends/receives
Ethernet frames.
(off)
Off
The device has no link to the Ethernet.
Number in picture:
Ch0:
(8)
Ch1:
(10)
LED yellow
(off)
Off
This LED is not used.
Table 14: LED states for the Sercos Slave protocol
SmartWire-DT Gateway | EU5C-SWD-SERCOS
DOC160805UM01EN | Revision 1 | English | 2017-02 | Released | Public
© Hilscher 2017
