How to implement the Modbus master station and CAN bus connection -

by:Coolmay     2020-06-22
Wide into GCAN - science and technology Turn 204 Modbus RTU CAN module CAN realize the Modbus master station and CAN bus connection. This module is a standard Modbus from station, so it can with almost all of the standard Modbus master station (on market Such as PLC, industrial computer, controller, etc. ) Communication, CAN bus CAN realize through the Modbus protocol to send and receive data. Case sharing

a guangzhou auto parts manufacturers Deng Gong contact us said they wanted to put the PLC controller to the vehicle CAN bus, some automobile internal sensor real-time monitoring parameters.

I: excuse me, can you tell me what you use is which type of PLC, PLC on what communication interface?

Deng Gong: PLC used S7 - 200, 485 interface, is the Modbus protocol.

I: is that your PLC do Modbus master station? Read the CAN bus data?

Deng Gong: yes, want to use the PLC on the CAN bus CAN read data of several ID.

I: GCAN - that you can use our company Turn 204 Modbus RTU CAN module, the module after receiving the CAN bus data will store data of the specified ID to the corresponding address of the Modbus, waiting for the Modbus master station sends read instructions, at the same time you CAN also use the Modbus master station to GCAN - 204 module corresponds to the Modbus address write data, the data will be to specify CAN ID sent to the CAN bus. ( The figure below),

Deng Gong: how many CAN data CAN support?

I: GCAN - 204 is based on CAN bus frame ID configuration module, you CAN set the most 32 receives the frame ID and 32 send frame ID.

Deng Gong: ok, then I buy a come back study.

Modbus protocol with CAN bus seemingly has nothing to do, but CAN use conversion gateway connects the two completely different bus, make different bus data CAN be exchanged through conversion gateway. Conversion gateway this characteristic, makes industrial interconnection is very simple and flexible to use conversion gateway CAN be used between two different communication bus equipment communicate with each other, to achieve cost reduction, such as flexible network effect, it CAN be widely used in the production line upgrade, PLC car CAN access network, fire host communication conversion, etc.

The global market was valued at plc controller price in programmable control systems and is expected to reach a market value of plc controller price by programmable control systems, with a CAGR of plc controller price during the forecast period.
Shenzhen Coolmay Technology Co., Ltd. ’s sole aim is to provide exquisite and unheard of features to the concept of producing technology.
Shenzhen Coolmay Technology Co., Ltd. has extented its range of manufacturing scale, which satisfys customers' needs.
To derive the optimal value out of programmable control systems plc manufacturers for your home, make sure they're purchased from a globally certified organization to ensure quality in use. Such an offer can be found at Coolmay PLC.
The group's Quality Systems Manager (QSM) is responsible for ensuring that Shenzhen Coolmay Technology Co., Ltd. has in place systems that guarantee quality throughout the Group.
Custom message
Chat Online 编辑模式下无法使用
Chat Online inputting...