CANopen Master Module with 1 CAN port, 80186 80MHz CPU, 512K flash, 512K SRAM, 120Ω terminal resister selected by jumper. The I-87123 was developed as a standardized embedded network with highly flexible configuration capabilities. It provides standardized communication objects for real-time data (Process Data Objects, PDO), configuration data (Service Data Objects, SDO), network management data (NMT message, and Error Control), and special funct..