Category archives: SoftPLC Hardware/Software

SoftPLC Controllers and Gateways, SoftPLC control software, TOPDOC and related items.

Podcast: A-B PLC Migrations

Last update on Sept. 21, 2023.

We're the guest on the Automation Blog's Podcast October 4th, with the topic of A-B PLC Migrations.  Listen/watch anytime after 3:30 EST at

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Can't get MicroLogix 1400? Here's your in stock solution!

Last update on April 14, 2023.

Our MLXP3xx series combines a Micro or NeoPAC SoftPLC with an Xpress I/O block to create the best MicroLogix alternatives:

  • Convert existing ladder logic & documentation files. Our conversion utility generates a better result than Rockwell's Micro800 or CompactLogix conversions!
  • Physical size similar to the 1766-L32xWxx controllers - with options to add more I/O if needed.
  • Data table addressing compatible with existing HMI applications
  • Supports peer-to-peer messaging to other Rockwell products
  • and more!
MLX Series NeoPAC

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SoftPLC 5.1 Firmware Release

Last update on Sept. 26, 2022.

Version 5.1 of the SoftPLC runtime firmware is now released!  New features include support for larger MSG packets on PCCC Ethernet, support for MSG routing through multiple PCCC Ethernet and DH+ networks (eg; via ControlLogix 1756-DHRIO interface cards), and improved runtime fault reporting enhancements.  This release also includes an updated Ethernet/IP driver which enhances communications between SCADA/HMI software (eg: PanelView/Factory Talk, Ignition) and SoftPLC controllers and gateways.

Contact for a copy of the detailed release notes.  Users with version 5.x firmware can purchase this as a revision update.  Users with 3.x ...

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TOPDOC NexGen Release 5.0.4

Last update on April 15, 2022.

A minor update to TOPDOC NexGen is now available for download in a password protected zip file at  Contact for the unzip password.

This update is date coded 5.0.211214 (displays at the bottom of the initial splash screen).  It is release 5.0.4 and fixes a minor issue in the smart.tlm editor related to selection of Tealware analog input modules.

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TOPDOC NexGen Patch to release 5.0.3

Last update on April 15, 2022.

An update to TOPDOC NexGen is now available for download in a password protected zip file at  Contact for the unzip password.

This release fixes a bug in "Detect On Net" with saving settings and creating a new PLC configuration file set on the TOPDOC PC.  This bug is only present in release 5.0.2 (5.0.211027 on the initial splash screen), not in earlier versions.

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Last update on Nov. 1, 2021.

An update to TOPDOC NexGen is now available for download in a password protected zip file at  Contact for the unzip password.

This release fixes a bug when addresses like T3:0/12 (which is a CTL word reference) are used, which can cause the APP to become corrupted when saved.

It also adds a textual "device type" field in an updated "detect on net" packet reply as well as revising the ModbusTCP editor to handle both old/new replies.

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TOPDOC NexGen version 5.0 Released

Last update on June 29, 2021.

TOPDOC NexGen version 5 is now available!  This is a major upgrade and supports all SoftPLC controllers or gateways with version 4.6 and later firmware.  Features include:

  • 64-bit software
  • Java Runtime Environment (JRE) is embedded
  • Supports new features of SoftPLC v5 runtime firmware, the Smart SoftPLC (v4) and NeoPAC (v2) hardware
  • Multi-level security options for SoftPLC access

You can download the upgrade from our website.  Email with your registration number(s) for the unzip password.  Customers in warranty or under software support extensions can use the upgrade at no cost.  If your support has expired, the ...

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Smart SoftPLC & Gateway -v4 Coming Soon!

Last update on July 22, 2021.

Version 4 of the Smart SoftPLC/Smart Gateway hardware will be available in stock by the end of 2020.  The new products will include the same features of the existing product, plus many enhancements including:

  • Faster 64bit, quad-core CPU with 512MB RAM and 8GB on-board flash memory
  • 5 GB Ethernet ports, 4 on a switch with multiple MAC ID's
  • (2) USB 2.0 host ports
  • (3) configurable communication ports - choose any mix of A-B "bluehose" (Data Highway Plus or Remote I/O), RS-485, or others
  • embedded WiFi/Bluetooth, option for embedded cell modem

Product literature and web site updates ...

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Updated Tealware I/O User Guide

Last update on Nov. 16, 2020.

Hot off the presses is an updated Tealware Hardware manual. The PDF version can be downloaded from, or you can purchase a hard copy from our store (

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New Video - Control System Migrations

Last update on May 27, 2020.

New Video - Control System Migrations

We've added a new video to our library.  This one discusses how SoftPLC Gateways can help A-B PLC users use phased migrations to upgrade their system vs complete retrofits.  Phased migrations reduce cost, downtime, and risk among other benefits. or

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