The Allen-Bradley PLC Historian

The Historian allows control engineers and operators to gather time series logs of data from their A-B PLCs.

Allen-Bradley PLC Historian


Ports: Bottom I/O - 1x RS-232/RS-422/RS-485 5-pin Terminal Block, 2x Ethernet ports, 1x 3-pin Terminal Block Power. Top I/O - 1x USB 3.2, 2x USB 2.0, 1x USB-C port (CM4 mgmt) and 1x Reset button
Certifications: RoHS, UL and CE

Get Control of Your Data

The Allen-Bradley PLC Historian operates locally and has no monthly service fees. You own and have full control of your data. Making it the ideal solution for closed control network environments.

The Allen-Bradley PLC Historian is the perfect solution to start realizing the value of information locked in your controls systems without needing to invest in costly and complex middleware solutions. Monitor KPIs, get data sets for OEE models, monitor predictive maintenance variables or simply get historic reports of your operations. The Historian can also alarm on critical events giving you a vital and holistic set of data to troubleshoot with.

How Does The Allen-Bradley PLC Historian Work?

It is as simple as plug and play! The Allen-Bradley PLC Historian automatically discovers available A-B PLCs on your network. The tag discovery feature allows you to view the tags in your PLCs and the data points to include in your logs. This is all done through an on-board browser-based interface. There is no simpler way to discover and log data from your A-B PLCs.

Why Use RTA for Data Management Solutions?

While there are certainly other companies offering data solutions, there is no one who provides the level of support and service that you receive from Real Time Automation. RTA is dedicated to being your protocol partner. When you call, a live person answers the phone. If you talk with sales, you will get honest answers and recommendations. When you get support, it is from an engineer who had a hand in the product’s development and testing.

What our Customers are Saying

“The 435NBA is an excellent serial to EtherNet interface to an Allen-Bradley ControlLogix PLC. We had our barcode scanner up and running within a day with your tech support. Great web interface makes it easy. We will be using more of these in the future.”

Jeff K.

"Industrial automation domain experts – the guys who build a lot of valves, pumps, drives, etc,, and need a way to talk to their devices – will find their Modbus champion in John Rinaldi. The author has almost as much shop floor experience as Modbus itself, the 40 years it’s been (and remains) the sole open source electronic networking protocol for connecting automation systems. John brings his trademark passion for, and quirky treatment of, all things industrial automation, to Modbus in the 21st Century. Internet of Things? OPC UA? All good – but automation engineers for whom small, simple, cheap, fast solutions will suffice will walk away from this book joining John in declaring ‘Hail Modbus! Modbus forever!"

Heather A. / Writer, Editor & Content Strategist