Rockwell Automation 1734-AENTR EtherNet/IP Network Configuration User Manual - Manual (Page 57)

Rockwell Automation Publication ENET-UM001L-EN-P - March 2014 57
Control I/O Chapter 5
Select a Remote Adapter
The type of distributed I/O modules that you need to access determines which
adapter to use.
Table 6 - Input and Output Modules - Differences in Ownership
Control This Ownership Description
Input modules Owner An input module is configured by a controller that establishes a connection as an owner. This configuring controller is the first
controller to establish an owner connection.
Once an input module has been configured and owned by a controller, other controllers can establish owner connections to that
module. This allows additional owners to continue to receive multicast data if the original owner controller breaks its connection to
the module. Additional owners must have the identical configuration data and communication format as the original owner
controller; otherwise, the connection attempt is rejected.
Listen-only Once an input module has been configured and owned by a controller, other controllers can establish a listen-only connection to
that module. These controllers can receive multicast data while another controller owns the module. If all owner controllers break
their connections to the input module, all controllers with listen-only connections no longer receive multicast data.
Output modules Owner An output module is configured by a controller that establishes a connection as an owner. Only one owner connection is allowed for
an output module. If another controller attempts to establish an owner connection, the connection attempt is rejected.
Listen-only Once an output module has been configured and owned by one controller, other controllers must establish listen-only connections
to that module. These controllers can receive multicast data while another controller owns the module. If the owner controller
breaks its connection to the output module, all controllers with listen-only connections no longer receive multicast data.
Table 7 - Choice of Remote Adapter
Type of Distributed I/O Available Remote Adapters
1756 ControlLogix I/O 1756-ENBT, 1756-EN2T, 1756-EN2TR, 1756-EN2TXT,
1756-EN2F, or 1756-EN3TR communication module
1794 FLEX I/O 1794-AENT
1734 POINT I/O 1734-AENT
1769 Compact I/O 1769-AENTR