CCON protocol is one of the application layer protocol on the CAN bus. It was developed by the ICP DAS Co., LTD. CCON protocol is a simple and effective protocol for industrial automation applications. Based on the CAN bus layer, it could provide many safe and robust communication mechanisms like arbitration, error detection, error correction and etc. It could help to establish the CAN networking application fast and easily. The CCON I/O modules could reply their own real-time I/O information to the controller at regular intervals automatically. In other word, the controller could acquire all remote modules in short time. It makes the communication more efficient when collecting a lot of remote I/O information. We also provide a lot of demos which show the users how to design the CCON master. We have provided a series of I/O modules like CAN-2053, CAN-2054 and CAN-2057.

CCON digital I/O pair-connection is a special function for CCON remote I/O. It can send the real-time DI information to others CCON DO slaves through the CAN network. And then these CCON DO slaves will output the corresponding signal. This mechanism do not need any master devices when detecting the DI signal and output the corresponding DO alarm at the same time.