Allen-Bradley 2080-LC20-20QBB

58 Rockwell Automation Publication 2080-UM005E-EN-E - March 2018
Chapter 5 Communication Connections
Here are some configuration examples based on the limits described in the table
above:
1. The maximum number of drives that can be controlled over EtherNet/IP
is 16. This is due to the maximum limit of TCP Client connections is 16,
and the maximum limit of EtherNet/IP Client connections is also 16.
2. If you have 10 devices controlled over EtherNet/IP, the maximum number
of devices that can be controlled over Serial is six. This is due to the
maximum limit of Client connections is 16.
3. The total number of UDP sockets plus TCP Client/Server sockets has a
maximum limit of eight.
Connection Limits for Micro820 Controllers
Description Connections
CIP Connections
Total number of client plus server connections 24
Maximum number of client connections for all ports 16
Maximum number of server connections for all ports 24
Maximum number of EtherNet/IP connections Client 16
Server 24
Maximum number of USB connections Client –
Server
Maximum number of serial connections Client 16
Server 24
TCP Connections
Total number of client plus server connections 64
Maximum number for EtherNet/IP Client 16
Server 16
Maximum number for Modbus TCP Client 16
Server 16
Maximum number for User Programmable Sockets 8
User Programmable Sockets
Total number of User Programmable Sockets
(any combination of UDP plus TCP Client/Server)
8
TIP
The 2080-REMLCD USB uses the CIP serial server connections for
embedded serial port.
IMPORTANT
If all client/server connections are fully loaded, performance may be
affected, such as data loss and intermittent delays during
communication.