124 Rockwell Automation Publication 1769-UM021I-EN-P - May 2018
Chapter 6 Communicate over Networks
Devices Included in the Node Count
Any devices that you add directly to the local Ethernet I/O configuration are
counted toward the node limitation of the controller. The following are
example devices that are added to the I/O configuration section in your project
and must be counted:
• Remote communication adapters
• I/O modules that are directly connected to the EtherNet/IP network,
for example the 1732E-IB16M12R ArmorBlock® EtherNet/IP module
• Motion devices, such as drives
• Remote controllers
• HMI devices that are included in the I/O configuration section, for
example, PanelViewâ„¢ Plus terminals
• Linking devices, such as the 1788-EN2DNR, Ethernet-to-DeviceNet
linking device or 1788-EN2DNROM, On-machine Ethernet-to-
DeviceNet linking device
1769-L36ERM 48
1769-L36ERMO
1769-L37ERM, 1769-L37ERMK 64
1769-L37ERMO
(1)
1769-L38ERM, 1769-L38ERMK 80
1769-L38ERMO
(1) Available at software version 31 and firmware revision 31.
IMPORTANT While CompactLogix 5370 controllers offer the option of using Ethernet
node count to effectively design a control system, the controllers do have
connection limits on an EtherNet/IP network.
For more information on how to design EtherNet/IP network use in your
CompactLogix 5370 control system, see these resources:
• The EtherNet/IP Capacity Tool available at the Integrated Architecture®
Tools & Resources website: http://www.rockwellautomation.com/
global/products-technologies/integrated-architecture/tools/
overview.page
• The EtherNet/IP Capacity Tool helps you in the initial layout of your
EtherNet/IP network.
• Ethernet Design Considerations Reference Manual,
publication ENET-RM002
.
Cat. No. Ethernet Nodes Supported
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