DH-485 Network

The DH‑485 industrial local area network is designed for factory-floor applications and uses the RS‑485 transmission standard.

DH-485 Network
  • Overview
  • Documentation
  • Resources


  • Includes local area network designed for factory-floor applications
  • Uses the RS-485 transmission standard
  • Supports connection of up to 32 devices, including SLC™ 500 and MicroLogix™ 1000 controllers, graphic terminals, and personal computers
  • Offers additional products from our Encompass™ Partners

Additional Information

Our PartnerNetwork™ offers complementary product solutions for products with DH-485 connectivity through the Encompass Product Reference program. You can sort and filter products from best-in-industry suppliers in your region to connect to the Rockwell Automation® architecture, or to use with our products.

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Browse Literature Library where you can search for additional technical and commercial publications in more languages.

Product Certifications

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Configuration & Selection Tools

Other Resources

  • Electronic Data Sheets — Find DeviceNet™, ControlNet™, EtherNet/IP™, and network-independent EDS files.
  • Firmware Updates — Log in to get support for firmware updates.
  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.