User manual

Publication 1768-UM001C-EN-P - November 2007
Communicate over Networks 27
Connections Over an EtherNet/IP Network
Each 1768-ENBT or 1768-EWEB module in an EtherNet/IP network can
provide messaging support for 64 CIP connections and 32 TCP/IP
connections.
For more information, see the EtherNet/IP Modules in Logix5000 Control
Systems User Manual, publication ENET-UM001
.
ControlNet Network
Communication
The ControlNet network is a real-time control network that provides
high-speed transport of both time-critical I/O and interlocking data and
messaging data, including uploading and downloading of programming and
configuration data on a single physical-media link. The ControlNet network’s
efficient data transfer capability significantly enhances I/O performance and
peer-to-peer communication in any system or application.
The ControlNet network is deterministic and repeatable and remains
unaffected as devices are connected or disconnected from the network. This
robust quality results in dependable, synchronized, and coordinated real-time
performance.
The ControlNet network often functions as:
• the default network for the CompactLogix platform.
• a substitute/replacement for the remote I/O (RIO) network because
the ControlNet network adeptly handles large numbers of I/O points.
• a backbone to multiple distributed DeviceNet networks.
• a peer interlocking network.
Required Software for ControlNet Communication
Software Functions Requirement
RSLogix 5000 • Configure CompactLogix projects.
• Define ControlNet communication.
Yes
RSNetWorx
for ControlNet
• Configure ControlNet devices by IP addresses
and/or host names.
• Schedule a network.
RSLinx • Configure communication devices.
• Provide diagnostics.
• Establish communication between devices.