Allen-Bradley Micro830 Manual page 72

Chapter 5 Communication Connections
58
• EtherNet/IP Client/Server
• Modbus TCP Client/Server
• DHCP Client
• Sockets Client/Server TCP/UDP
Connection Limits for Micro830/Micro850/Micro870 Controllers
Description
CIP Connections
Total number of client plus server connections for all ports
Maximum number of client connections for all ports
Maximum number of server connections for all ports
Maximum number of EtherNet/IP connections
Maximum number of USB connections
Maximum number of Serial connections
TCP Connections
Total number of client plus server connections
Maximum number for EtherNet/IP
Maximum number for Modbus TCP
Maximum number for User Programmable Sockets
User Programmable Sockets
Total number of User Programmable Sockets
(any combination of UDP plus TCP Client/Server)
If all client/server connections are fully loaded, performance may be
IMPORTANT
affected, such as data loss and intermittent delays during
communication.
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.
Client
Server
Client
Server
Client
Server
Client
Server
Client
Server
Rockwell Automation Publication 2080-UM002K-EN-E - March 2019
Micro830 Micro850/
Micro870
16 24
15 16
16 24
– 16
23
– –
15 23
15 16
15 23
– 64
16
16
16
16
8
– 8