Rockwell Automation Publication 2080-UM005B-EN-E - March 2015 47
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 Micro820 controllers have the following embedded communication
channels:
• a non-isolated RS232/RS485 combo port
• RJ45 Ethernet port
Supported Communication
Protocols
Micro820 controllers support the following communication protocols through
the embedded RS232/RS485 serial port as well as any installed serial port plug-in
modules:
• Modbus RTU Master and Slave
• CIP Serial Client/Server (RS232 only)
• ASCII
In addition, the embedded Ethernet communication channel allows your
Micro820 controller to be connected to a local area network for various devices
providing 10 Mbps/100 Mbps transfer rate. Micro820 controllers support the
following Ethernet protocols:
• EtherNet/IP Client/Server
• Modbus/TCP Client/Server
• DHCP Client
Topic Page
Supported Communication Protocols 47
Use Modems with Micro800 Controllers 51
Configure Serial Port 52
Configure Ethernet Settings 59
OPC Support Using RSLinx Enterprise 60
If all client/server connections are fully loaded, performance may be
affected, such as data loss and intermittent delays during
communication.
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