Bus Coupler DI16/DO16
Kendrion Kuhnke Automation GmbH
30
17 May 2021
Status LEDs
LED "EtherCAT Run"
The LED labelled "EtherCAT Run" indicates the state of the EtherCAT ASIC.
Initialising, no data exchange
Pre-operational, no data exchange
Safe operation, inputs readable
Operational, unrestricted data exchange
LED "IO"
The LED labelled "IO" indicates the state of the module's I/Os.
State
LED flash code
Explanation
Ok
Off
No error
SC
Red, flashing
Short-circuited digital output
NOTE
The output drivers have a thermal fuse to automatically turn off any short-circuited outputs. In
case the short circuit prevails, the outputs are allowed to cool down to be turned back on until the
thermal fuse blows again.
LED "Power"
The LED labelled "Power" indicates the state of the I/O module's I/O power supply.
State
LED flash code
Explanation
On
Green, on
24 VDC
for the IO’s (Load) supply ok
Off
Off
24 VDC supply not ok
NOTE
The module features a low voltage watchdog for the logic and load circuits.
LED "In L/A", LED "Out L/A"
LEDs "In L/A" and "Out L/A" indicate the physical state of the Ethernet port they are allocated to (L/A:
Link/Activity).
State
LED flash code
Explanation
Not connected
Off
No Ethernet connection
Connected
Green, on
Connected to Ethernet
Traffic
Green, flashing
Exchanging telegrams
LEDs "Channel"
State
LED
Explanation
On
Green, on
Input signal TRUE / output enabled
Off
Off
Input signal FALSE / output disabled