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Operation
6.11 Communication via EtherNet/IP
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
401
6.11
Communication via EtherNet/IP
6.11.1
Overview
EtherNet/IP (short: EIP) is real-time Ethernet, and is mainly used in automation technology.
The EtherNet Industrial Protocol (EtherNet/IP) is an open standard for industrial networks.
EtherNet/IP is used to transmit cyclic I/O data and acyclic parameter data. EtherNet/IP was
developed by Rockwell Automation and the Open Device-Net Vendor Association (ODVA),
and standardized in the series of international IEC 61158 standards. EtherNet/IP uses the
basis technology of Ethernet TCP/IP, which has been well proven in practice. Ethernet
twisted-pair cables or fiber-optic cables are used as data transmission medium. The CIP
protocol (Common Industrial Protocol) – known from DeviceNet and ControlNet – is used as
application protocol.
General information about communication
Communication via EIP requires the following interfaces:
●
The Ethernet interface (X1400) of the Ethernet CBE20 option board
●
The onboard PROFINET interface (X150) at the CU320-2 PN Control Units
The interfaces are either individually available at the different Control Units, or together at
one Control Unit (e.g. at a CU320-2 PN with CBE20).
The following table provides an overview of the configurable Control Units and interfaces that
are available for communication via EIP.
Table 6- 38 Configurable Control Units and interfaces
Control Unit
EIP via X150
EIP via X1400 (CBE20)
CU320-2 PN
Yes
No
CU320-2 PN with CBE20 (optional)
Yes
Yes
CU320-2 DP
with CBE20
No
Yes
Independent of the configuration, only one interface can be assigned for communication via
EIP. A simultaneous connection via the interfaces X150 and X1400 is not possible and is
acknowledged with alarm A08555(1).
6.11.2
Connect drive device to Ethernet/IP
In order that your drive can be connected to a control system via Ethernet, your control
system requires a generic I/O module for cyclic communication via Ethernet/IP. You
manually create this generic I/O module in the control system.
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