Rockwell Automation Publication 1769-UM021G-EN-P - October 2015 125
Communicate over Networks Chapter 6
• Socket interface to communicate with Ethernet devices that do not
support the EtherNet/IP application protocol
• Duplicate IP address detection
• Unicast and multicast communication
• Support messaging, produced/consumed tags, HMI, and distributed I/O
• Interface via RJ45, twisted-pair cables
• Support half/full-duplex 10 Mbps or 100 Mbps operation
• Support standard switches
• No network scheduling required
• No routing tables required
Nodes on an EtherNet/IP Network
When configuring your CompactLogix 5370 control system, you must account
for the number of Ethernet nodes you include in the I/O configuration section of
your project. CompactLogix 5370 controllers have limits on the number of nodes
they support in the I/O configuration section.
Tab le 4
lists the Ethernet node limits for CompactLogix controllers.
Table 4 - CompactLogix 5370 Controller Ethernet Node Guidelines
Cat. No. Ethernet Nodes Supported
1769-L16ER-BB1B 4
1769-L18ER-BB1B 8
1769-L18ERM-BB1B
1769-L19ER-BB1B
1769-L24ER-QB1B 8
1769-L24ER-QBFC1B
1769-L27ERM-QBFC1B 16
1769-L30ER
1769-L30ERM
1769-L30ER-NSE
1769-L33ER 32
1769-L33ERM
1769-L36ERM 48
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