Configuration
EK3100
35
Version: 1.5
Fig. 27: Example configuration with EP1122 (2-port EtherCAT junction in protection class IP65)
If neither junction is used, then junctions 1 and 2 are bridged, so to speak, and the EtherCAT frame goes
directly to the EtherCAT connection on the right-hand side.
No Hot Swap during operation
You cannot use EP1122 and EK1122 on an EKxxxx for Hot Swap and also not for connection and
disconnection during operation. EP1122 and EK1122 are suitable only for topology extension (star)
on an EKxxxx.
Note restrictions
Please note the following restrictions when you use the EK3100 Bus Coupler with EtherCAT devices:
• Only EtherCAT devices from Beckhoff are supported. To use EtherCAT device from other
manufacturers, use the CX8031 Embedded PC instead.
• The EK3100 Bus Coupler does not support hot-plug. All EtherCAT devices have to be connected
before the Bus Coupler can be started. The EtherCAT configuration must not be changed during
operation. An EtherCAT interrupt generates an error and invalidates the data.
• Only one Sync Unit is supported.
• The EK3100 Bus Coupler does not support distributed clocks. EtherCAT devices requiring distributed
clocks cannot be used.
• Use only EtherCAT devices from Beckhoff, which are listed in the GSD file.
• Gateway terminals are not supported. These also include ASI and IO-Link terminals. To use gateway
terminals, use the CX8031 Embedded PC instead.
• EtherCAT K-bus Couplers, such as the BK11x0 or the BK1250, are not supported
