The XM2S-2515 is a compact, high-speed PLC module from Omron. It is part of the XM2S Professional PLC family, and is the fastest PLC in that series. The module includes two serial ports, two Ethernet ports, two USB ports, two encoders, one external USB port, two timer counters and two output relays. Additionally, it has a MicroSD card slot for storage expansion. The XM2S-2515 also includes built-in modbus for communication with outside devices.