DeviceNet Remote I/O Unit with 2 I/O Expansion Slots. The CAN-8124/CAN-8224 main control unit is specially designed for the slave device of DeviceNet protocol. It follows the Specification of DeviceNet. In order to expand I/O channel more flexible, an CAN-8x24 supports 1/2/4 slot(s) for I/O expansion and suits with a lot of ICP DAS DI/AI/DO/AO modules.Users can choose DI/DO/AI/AO modules of I-87K series or I-8000 series to fit the customized prac..