Kendrion Kuhnke Automation GmbH
Bus Coupler DI8/DO8
33
17 May 2021
5.2.3 Bus Coupler DI8 DO8
The Kuhnke FIO bus coupler DI8/DO8 is an EtherCAT IO module providing the functions
of the Kuhnke FIO bus coupler and Kuhnke FIO DI8/DO8 modules in a single unit. Its E-
bus power has been reduced to 2 A to make it particularly fit for use in smaller blocks of
modules. The module's bus coupler element converts the physical transfer technology
(twisted pair) to LVDS (E-bus) and generates the voltages required by the LVDS
modules. The module features 8 digital inputs and 8 digital outputs. The E-bus port on the
side allows a flexible extension of the bus coupler DI8/DO8 by Kuhnke FIO-series
EtherCAT I/O modules.
Information
Best noise emission results are obtained by connecting the shield of the EtherCAT cable to
operative earth.
Shield Terminal, for example (see section 6.2)
Terminals
Module and I/O port power supply:
L+
24 VDC
L-
0 V
EtherCAT
Female IN RJ45
input (from previous EtherCAT station)
Female OUT RJ45
output (to next EtherCAT station)
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
Front view of bus coupler DI8 DO8
I/O connection