The SMC series is a new generation of PLC launched by Hangzhou Liwei. The small PLCs include the SMC300 and SMC301 series. The medium PLCs include the SMC501 series, the medium‑large PLCs include the SMC601 series, and the large PLCs include the SMC700 series.

The SMC series PLC products are based on the CODESYS platform. They are designed and developed in full compliance with the PLCopen specification and the IEC‑61131‑3 standard, and support programming languages such as ST, LD, FBD, SFC, and CFC. They feature high performance, modularity, and a compact size. With RS485, Ethernet, and EtherCAT interfaces, together with the ER20 and ER21 series remote I/O modules, they enable multi‑level and multi‑functional network communication, data acquisition, and processing. This series is mainly used in mechanical automation equipment and production lines in industries such as lithium battery, photovoltaics, 3C, food and beverage, packaging, and printing.

The SMC700 is a high‑performance intelligent PLC launched by Liwei, based on an X86 processor hardware platform. The controller features an all‑metal enclosure, making it suitable for complex industrial automation and motion control scenarios. It is applicable to high‑end equipment manufacturing, smart factory robot control, and other application fields.