Tag archives: PLC-5

In Stock: A-B RIO/DH Gateways

Last update on July 7, 2022.

We provide gateways to provide communication between devices on Allen-Bradley Remote I/O (RIO) or Data Highway Plus (DH+) networks and devices on other networks such as Ethernet/IP, ModbusTCP, DF1, Modbus serial and others, and both models are in stock:  our Smart and NeoPAC SoftPLC Gateways.

ProSoft Technology recently discontinued their AN-X2-AB-DHRIO product, which was the only other supported gateway on the market.  SoftPLC Gateways provide more functionality than the ProSoft model (see the "Compare" tab at http://softplc.com/products/comm/abgw_landpg/) and are value priced options for customers needing "blue-hose" communications for partial system upgrades.

ProSoft Discontinued RIO/DH+ Gateway

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Upgrade A-B PanelView, Drives & More

Last update on Sept. 5, 2015.

July 2012 Newsletter Feature Article:

Attention PLC-5, SLC-500, PLC-2 and other A-B PLC/PAC Users of Remote I/O “blue hose":

SoftPLC provides easy, low cost upgarde solutions to replace drives, PanelViews & other A-B RIO devices - with no PLC changes required.

Then, over time, you can use the same Gateway to migrate the PLC, I/O, and more to a modern solution.

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March 2012 Newsletter Published

Last update on Sept. 5, 2015.


  • SMS Read/Write Ladder Instructions
  • New Products - Low Cost, Rugged Cell Modems
  • Application Story - Flawless PLC-5 Migration

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January 2012 Newsletter Issued

Last update on Sept. 5, 2015.


  • Allen-Bradley PLC Migrations - Low Risk, Low Cost
  • TOPDOC NexGen Downloadable Demo

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