• Expandable to 132 I/O points
  • 24 VDC or 120/240VAC
  • Optional 2nd port
  • Flexible programming
  • Two analog input channels
  • Wide variety of applications


The Emerson Micro 20 Controllers has many features including expandable to 132 I/O points, fast cycle times, robust instruction set, and generous memory to allow more flexible programming. The optional second port provides you with the option of an additional RS-232 port, RS-485, USB, or Ethernet. The serial expansion ports come with two analog input channels. A user-friendly memory module is available to easily download changes to the controller without the need of a PC. And it's all packaged in a sturdy modular design for easy access and long-term durability. This all-in-one PLC gives you everything you need to control a wide variety of applications.


Here's how some of our customers use this product...

CO2 Condensing Unit

The Background: Our customer is an engineering firm working on a project that requires recapturing CO2 that is used in an industrial process.

The Problem: The customer is using condensing unit and solenoid valves to reprocess CO2 gas back into liquid for storage. They require an instrument that can control the entirety of this process.

The Solution: We recommended the GE Automation Versamax Micro 20 controller. With custom logic running control, digital inputs to take pulse inputs and digital outputs to open and close the valves, the Versamax Micro 20 is the perfect fit for their application.

Customer is able to efficiently control and monitor their process exactly the way they wanted, as they paired their hardware with Instrumart PLC programming.

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