A-B 1783-SFP100T 100BASE-T copper

Selecting a ControlLogix System

The ControlLogix system architecture provides sequential, process, and

motion control together with communications and state-of-the-art I/O in a

small, cost-competitive package. The system is modular, so you can design,

build, and modify it efficiently - with significant savings in training and engineering.

A ControlLogix system can be anything from a simple chassis to a highly-distributed

system consisting of multiple chassis and networks working together.

A simple ControlLogix system consists of a stand-alone controller and I/O modules in a single chassis.

Or you can use the ControlLogix system as a gateway. 

Include the communication modules you need for connectivity to other networks. For

this use, a controller is not required. The ControlLogix Gateway integrates

into existing PLC-based systems so that users with existing networks can

send or receive messages to or from other networks.

For a more robust system, use:

• multiple controllers in a single chassis

• multiple controllers joined across networks

• I/O in multiple platforms that is distributed in many locations and connected over multiple I/O links

DF1 modes:

• DF1 full-duplex: provides communication between an SLC 500 controller and other

• DF1 compatible devices. In point-to-point mode, the SLC 500 controller uses

DF1 full-duplex protocol.

• DF1 half-duplex master: polls and transmits messages between the master and

each remote node. In master mode, the SLC 500 controller uses DF1 half-duplex polled protocol.

• DF1 half-duplex slave: uses the controller as a slave station in a master/slave serial network. 

In slave mode, the SLC 500 controller uses DF1 half-duplex protocol.

DF1 radio modem: a hybrid between DF1 full-duplex and DF1 half-duplex, 

this protocol is optimized for use with radio modem networks.