A-B 1756-DH485 Module Rockwell CONTROLLOGIX DH485 Communication Control

A modern control system is more than its name implies. It delivers the fast system performance, 

high capacity and optimized productivity that you need from a control system today.

Our ControlLogix® and GuardLogix® 5580 family of controllers use the Studio 5000® design environment

 as the standard framework that optimizes productivity, reducing time to commission. 

This framework manages Integrated Motion over EtherNet/IP for high-speed motion applications and SIL2/PLd and SIL3/PLe safety solutions.

It can also help you create more competitive operations with:

Common plant-wide control

ControlLogix 5580 controllers provide multi-discipline control for discrete, motion, process and safety applications.

A simplified architecture

Our Logix offerings work together in what we call our Integrated Architecture® offering.

It helps you keep costs down and reduce system complexity.

Enhanced security

The ControlLogix 5580 controller incorporates security mechanisms like centralized authentication and access 

control to help keep your systems secure. We have also received ISO 27001 certification to help protect 

intellectual property – both ours and yours. 

And our vulnerability-management process aligns to IEC 29147 and 30111.

Processor Communication Options

The SLC 500 processors support several communication options. 

The following sections describe the available physical connections and protocol options used by the SLC 500 processors.

Physical Connection Options

Ethernet (10/100Base-T) channel offers:

• 10/100 Mbps communication rate.

• ISO/IEC 8802-3STD 802.3 (RJ45) connector for 10/100Base-T media.

• TCP/IP communication protocol.

• built-in isolation.

DH-485 channel offers:

• configurable isolation via the 1747-AIC or 1761-NET-AIC interfaces.

• maximum network length of 1219 m (4000 ft).

• RS-485 electrical specifications.

• Belden 9842 or Belden 3106A cable connection between nodes (daisy-chain connection).