User manual

71 Publication 1763-UM001E-EN-P - March 2015

Chapter

Communication Connections

This chapter describes how to communicate with your control system. 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:

• supported communication protocols

• default communication configurations

• using communications toggle functionality

• connecting to RS-232 port

• connecting to DH-485 network

• connecting to AIC+

• connecting to DeviceNet

• connecting to Ethernet

The MicroLogix 1100 controllers provide two communication channels, an

isolated RS-232/485 communication port (Channel 0) and an Ethernet port

(Channel 1).

Supported Communication

Protocols

MicroLogix 1100 controllers support the following communication protocols

from the primary RS-232/485 communication channel, Channel 0:

• DH-485

• DF1 Full-Duplex

• DF1 Half-Duplex Master and Slave

• DF1 Radio Modem

• Modbus Master and Slave

• ASCII

The Ethernet communication channel, Channel 1, allows your controller to be

connected to a local area network for various devices providing 10 Mbps/100

Mbps transfer rate. MicroLogix 1100 controllers support CIP explicit

messaging (message exchange). MicroLogix 1100 controllers do not support

Ethernet I/O master capability through CIP implicit messaging (real-time I/O

messaging).