Rockwell Automation Allen-Bradley Micro830 Original Instructions

58 Rockwell Automation Publication 2080-UM002L-EN-E - November 2021
Chapter 5 Communication Connections
•DHCP Client
• Sockets Client/Server TCP/UDP
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
i
s 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 maxi
mum limit of Client connections is 16.
3.
The total number of UDP sockets plus TCP Client/Server sockets has a
ma
ximum limit of eight.
Modbus RTU
Modbus is a half-duplex, master-slave communications protocol. The Modbus
network master reads and writes bits and registers. Modbus protocol allows a
single master to communicate with a maximum of 247 slave devices. Micro800
controllers support Modbus RTU Master and Modbus RTU Slave protocol. For
more information on configuring your Micro800 controller for Modbus
protocol, see the Connected Components Workbench Online Help. For more
information about the Modbus protocol, see Modbus Protocol Specifications
available from https://www.modbus.org
.
Connection Limits for Micro830/Micro850/Micro870 Controllers
Description Micro830
Micro850/
Micro870
CIP Connections
Total number of client plus server connections for all ports 16 24
Maximum number of client connections for all ports 15 16
Maximum number of server connections for all ports 16 24
Maximum number of EtherNet/IP connections
Client
–
16
Server 23
Maximum number of USB connections
Client – –
Server 15 23
Maximum number of Serial connections
Client 15 16
Server 15 23
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
IMPORTANT
If all client/server connections are fully loaded, performance may be
affected, such as data loss and intermittent delays during communication.

Rockwell Automation Allen-Bradley Micro830 Specifications

General

Brand	Rockwell Automation
Model	Allen-Bradley Micro830
Category	Controller
Language	English