The XACS101 is a digital programmable logic controller designed and manufactured by Schneider Electric. It is designed for industrial applications, and provides an integrated set of features for controlling and automating processes. It is modular in nature, allowing for scalability and flexibility, and is also suitable for distributed system applications. The XACS101 supports a range of functions, including PID control, semi-auto and manual control, sequence control, and networking. Additionally, it features a comprehensive set of features that enable it to be used in distributed system applications. These include remote I/O, central I/O, Ethernet and an optional CAN open interface.