Welcome to the UniMAT official website

We are a Chinese PLC/HMI/VFD manufacturer with 20 years of experience.

SM323 16DI/16DO


Number of digital contact:16

can pxpand digital input/output channels of S7-300 series PLC easily;

can be used to ET 200M I/O;

20 years experience

3-year warranty

Support free sample test


  1. Shenzhen Unimat Automation Technology Co., Ltd., established in 2005, is a National High-Tech Enterprise, a Specialized and Innovative Enterprise, and a participant in the development of the national standard for Programmable Controllers, specializing in industrial automation control.
  2. The company's products include PLCs, HMIs, VFDs, and Industrial Internet of Things systems, all of which have complete independent intellectual property rights.

As of December 2023, UniMAT PLC sales have exceeded 2,000,000 units.