How to use can to 485 interface tool
The 485 bus appeared before the CAN bus. It is a kind of serial bus. Because it appeared earlier than the CAN bus, the 485 bus occupies a large part of the market share in the early days. Later, CAN bus was born. Compared with serial bus like 485, CAN bus has longer data transmission distance, more stable operation, high development level and better cost performance. Therefore, the gradual replacement of the 485 bus with the CAN bus started in an orderly manner. However, we also mentioned above that the 485 bus appeared early. In many industrial control projects, it is still a dedicated communication bus, and the corresponding production equipment only supports its communication method. Obviously the performance is not as good as the CAN bus, but the 485 bus has to be used. The production efficiency cannot be improved and the cost remains high. This situation is beyond our tolerance. So, how can we solve this problem? In my opinion, there are two options.
Option 1: The original device has no CAN bus communication capability. That is because there is no CAN communication component inside the device. Can you just integrate one for it? Under this demand, the embedded CAN bus core module can show its talents. For example, the CANcore of Shenyang Guangcheng Technology, which is a small-sized embedded intelligent CAN core module. Users can use this module without CAN communication. The interface device becomes a CAN node, which is quickly connected to the CAN bus.
Option 2: If the first problem solving method is more difficult to operate, then you can directly use a CAN to 485 interface tool to realize the mutual conversion between CAN bus data and 485 data, so that CAN bus communication is not originally supported The tool can also use CAN bus communication. A typical example of this type of tool is GCAN-207 of Shenyang Guangcheng Technology. Shenyang Guangcheng Technology GCAN-207 CAN to 485 interface tool is a universal serial-CAN conversion module newly developed by our company. Compared with the traditional conversion module, CANCOM not only upgrades the hardware workmanship, but also adopts online conversion. Technology, that is, you can use software to configure its serial communication mode (232 or 485) without removing the jumper. In terms of functions, a new "format conversion" mode is added, using CANCOM conversion module, PC, PLC or other serial port networking equipment can easily access CAN-BUS network, forming fieldbus laboratory, industrial control, intelligent community, automotive electronic network and other CAN- The control node of data processing, data acquisition and data analysis in the field of BUS network. It is a powerful tool for CAN-BUS product development and data analysis. At the same time, CANCOM has the characteristics of small size and convenient installation, and is a reliable assistant for engineering application, project debugging and product development.