
Rockwell Automation Publication 2080-UM002N-EN-E - November 2022
55
Chapter
5
Communication Connections
Overview
This chapter describes how to communicate with your control system and configure
communication settings. The method you use and cabling required to connect your controller
depends on what type of system you are employing. This chapter also describes how the
controller establishes communication with the appropriate network. Topics include:
The Micro830, Micro850, and Micro870 controllers have the following embedded
communication channels:
• A non-isolated RS-232/RS-485 combo port
• A non-isolated USB programming port
In addition, the Micro850 and Micro870 controllers have an RJ-45 Ethernet port.
Supported Communication
Protocols
Micro830, Micro850, and Micro870 controllers support communication through the embedded
RS-232/RS-485 serial port as well as any installed serial port plug-in modules. In addition,
Micro850 and Micro870 controllers also support communication through the embedded
Ethernet port, and can be connected to a local area network for various devices providing 10
Mbps/100 Mbps transfer rate.
These are the communication protocols supported by Micro830/Micro850/Micro870
controllers:
• Modbus RTU Master and Slave
• CIP Serial Client/Server (DF1)
• CIP Symbolic Client/Server
• ASCII
• DNP3
(1)
These are the communication protocols supported by Micro850 and Micro870 controllers only:
• EtherNet/IP Client/Server
• Modbus TCP Client/Server
• DHCP Client
• Sockets Client/Server TCP/UDP
Topic
Page
Supported Communication Protocols
Use Modems with Micro800 Controllers
OPC Support Using FactoryTalk Linx
(1) DNP3 is only supported on 2080-L70E-24
QxB
N controllers.