Friday, July 12, 2024
Useful Resources for Brilliant Manufacturing, Operational & Industrial Intelligence Technology Enthusiasts!

Automation, Control & Plant Intelligence - Articles, Analysis, Reviews, Interviews & Views

OPC - OLE (Object Linking and Embedding) for Process Control :: The Industrial Interoperability Standard

DH+ - What is it?
Knowledge Base

Automation Media's recommended most important key terminologies you need to know if you work in Automation, Controls, Brilliant Manufacturing, Operational & Industrial Intelligence or IoT etc. ; regardless of any vendor(s) you are dealing (Allen Bradley, GE Fanuc, Siemens, Modicon, Mitsubishi, Omron, Automation Direct etc).

DH+ is Data Highway Plus Industrial Local Area Network from AB.

The Data Highway Plus (DH+) network is a local area network that is very simple to implement. It is designed to provide simple communication between AB's PLCs, SLCs and PCs.

The Data Highway Plus network allows connection to a maximum of 64 devices per link (although 15 or fewer nodes are recommended per link), including:

  • PLC-5 and SLC 5/04 programmable controllers

  • Color graphics systems

  • Personal computers

  • Host computers

  • Numerical controls

  • Programmable RS-232-C/RS-422 devices

  • A network can be configured with 99 links. With a multi-link network, more nodes in the network are possible. By placing nodes in the proper link with some nodes and separate from other nodes, the efficiency of message delivery can be improved. Using simple twisted-pair wiring, DH+ can be configured as a trunk-line drop or a daisy-chain topology.

    Free OPC Clients   /   Free OPC Servers   /   Free OPC Utilities

    OPC Foundation owns all OPC trademarks including the OPC logo used throughout this site. Most of information in OPC Knowledge Base is from OPC foundation.
    Free Automation Stuff This information made available on Automation Media, are provided "as is" without any representation or warranty, express or implied, of any kind, including, but not limited to, warranties of merchantability, noninfringement, or fitness for any particular purpose. Automation Meida makes no warranty or representation regarding, and does not endorse, any linked Web sites or the information appearing thereon or any of the products or services described thereon.