Programmable Logic Controllers


Unitronics is proud to introduce the first member of their Jazz® 2 Series - the JZ20-R31. With 48K (virtual) Ladder Logic memory, 30 times faster performance and a new, built-in mini USB programming port, the new JZ20-R31 allows industrial control processes to enjoy more power, speed and functionality at the same low price as its standard Jazz® series counterpart. Upgrading from your standard Jazz® unit to the new JZ20-R31 is easy. With the same look, dimensions, wiring and functional behavior, the JZ20-R31 model has complete backward compatibility as the standard Jazz®. 

Upgrading your existing project is hassle-free, and can be completed in 3 easy steps. First, open the application. Second, select the new model in Hardware Configuration. And lastly, save the application. The new JZ20-R31 is perfect for replacing ‘smart relays’, for applications such as simple autoclaves, rotating tables, home automation, and other small-to-medium systems where every penny counts. It’s PLC + HMI advantage gives users the opportunity to operate on a minimum of budget, programming time and wiring. All Jazz® and Jazz® 2 series controllers include 4 auto-tune PID loops. PID can be set using the onboard temperature/analog inputs, and the analog or PWM outputs; all onboard transistor outputs can function as PWM outputs. Jazz® and Jazz® 2 units also feature a full-function HMI with a two line LCD text display that shows up to 60 user-designed screens, and a 16-key keypad. The multilingual display supports over 15 languages, and 20 graphic symbols. Control and communication options make these controllers a big step up from any “smart-relay”. With 24K (Virtual) of Ladder Logic in the standard Jazz® series and 48K (Virtual) with the new Jazz® 2 series, these units provide flexibility, functionality and power. Software functions include: interrupt, loops, math, store and compare. Communications options include SMS messaging, MODBUS networking and PC access via MODBUS or OPC. Unitronics’ FREE software provides one user-friendly environment for hardware configuration, and HMI design. Unitronics also offers FREE technical support for all of their products. The new JZ20-R31 and Jazz® 2 series reduces overall system costs by minimizing hardware requirements, saving cabinet space—and, above all—exempting the user from setting up Panel-PLC communication.


  • 48K (virtual) Ladder Logic memory
  • 30 times faster performance
  • built-in mini USB programming port
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