RS485 to CAN bus device requirements
I believe that friends who are engaged in car repair will not be unfamiliar with the car bus. It is spread all over the car, controlling the movement, lighting, entertainment and other aspects of the car. It is like the nervous system of the human body. The nerves give orders to the various components of the body, drive the relevant body to respond after the information is transmitted to the target position, and then feedback back to the brain through the nervous system to complete a complete action. These neural control systems on the car have their own alias: the car bus. If the engine is the heart of the car, then the ECU is the brain and soul of the car. The bus is the nerve of the car. Today, we are talking about the most development two kinds of buses in the foreground, RS232 and CAN.
Luxury car using CAN bus technology
Let me first talk about the CAN bus, which was designed to the development of automobiles and their electronic products in automobiles. Later, it has also adopted it in the field of rail transportation, industrial automatic field. It is especially suitable for industrial assembly line production projects, with high production efficiency and convenient maintenance, which reduces the work pressure of maintenance workers. At present, it has its own international standard, ISO11898, which is called the most promising industrial bus.
After talking about the CAN bus, let's talk about the RS485 bus. In general, it is an upgraded version of the old RS232 bus. It can extend the data transmission distance of RS232 bus to the farthest 3000 meters, the baud rate value will increase to hundred thousand bps, and the node equipment will reach 32, greatly improving the production vitality of the relevant bus communication equipment, so RS485 bus occupies a huge market share.
Structure of RS485 bus
We have briefly introduced the two kinds of buses, so which kind of bus is better? GCAN directly gives the answer, is the CAN bus, after all, it's the latecomer, but this does not mean that all RS485 bus must be replaced by the CAN bus, for the following reasons:
1. The replacement of the industrial control bus takes a long time. If there are no two or more identical production lines for replacement production, then the entire project will only have to be shut down. For some SMEs, the time cost and production cost loss during the period is unbearable.
2, CAN bus performance is indeed excellent, but in some production areas, the use of RS485 bus can meet the needs, replaced by CAN bus quite a sense of killing chicken with a knife.
3. From using a familiar industrial bus to adapting to another industrial bus, this also requires training and time. As mentioned above, in some small and medium-sized enterprises, they cannot afford this pressure and cost. The less they change, Often the effect can be better.
Then the question comes, how to make it have the interface and performance of CAN bus without changing the base structure of RS485 bus? Yes, the RS485 to CAN bus device was invented, such as the GCAN-207 RS485 to CAN bus tool from GCAN.
GCAN-207 RS232 to CAN bus gateway
GCAN-207 RS485 to CAN bus tool is a general-purpose serial port to CAN gateway module newly developed by GCAN. Compared with the traditional RS485 to CAN bus device, GCAN-207 not only upgrades the hardware work, but also uses online transmit function, means its serial communication mode (232 or 485) can be configured using software without disassembling jumpers.
Functionally added "format conversion" mode, using GCAN-207 RS485 to CAN bus tool, PC, PLC or other serial port networking equipment can easily access CAN-BUS network, constitute field bus laboratory, industrial control, intelligent community, A control node for data processing, data acquisition, and data analysis in the field of CAN-BUS networks such as automotive electronic networks. It is a powerful tool for CAN-BUS product development and data analysis. At the same time, GCAN-207 RS485 to CAN bus tool has the characteristics of small size, convenient installation, etc. It is a reliable assistant for engineering application, project debugging and product development. It supports RS-232/RS-485 communication rate in the range of 600~115200bps and CAN-bus communication rate in the range of 5Kbps~1Mbps. It is very easy to use to achieve a seamless connection between the RS485 bus and the CAN bus.
If you have any questions about the RS485 to can bus or would like to know more about the GCAN-207 RS485 to CAN bus tool, please click on the link below or contact us to learn more: