Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 131
Communicate over Networks Chapter 6
Socket Interface with CompactLogix 5370 Controllers
CompactLogix 5370 controllers can use socket interfaces to communicate with
Ethernet devices that do not support the EtherNet/IP application protocol.
The socket interface is implemented via the Socket Object. CompactLogix
5370 controllers communicate with the Socket Object via MSG instructions.
To communicate with another device, you must understand the application
protocol of the other device.
CompactLogix 5370 controllers support up to 32 socket instances.
For more information on socket interface, see EtherNet/IP Socket Interface
Application Technique, publication ENET-AT002
.
IMPORTANT Keep the following in mind when using sockets with CompactLogix 5370
controllers:
• A significant difference between CompactLogix 5370 controllers and
other Logix5000â„¢ controllers is the communication path. CompactLogix
5370 controllers do not require a separate EtherNet/IP network
communication module, for example, a 1756-EN2T module. In the case
of the CompactLogix 5370 controllers, the MSG is sent to the controller
itself by using the path ‘1,0’.
• All CompactLogix 5370 controllers must use unconnected MSG
instructions for socket servers. When you configure a message for a
CompactLogix 5370 controller, make sure the Connected checkbox on
the Message Configuration dialog box is cleared.
To Next Page
Loading...
Need help?
General
