Search results
People also ask
What is the difference between RS-485 and can?
Should I use RS485 or CAN bus?
How does RS485 work?
Is CANbus the new RS-485?
CAN transceivers will exceed the standard in the same way as RS-485 transceivers. The common-mode range (CMR) is -7V to +12V for RS-485 and -2V to +7V for CAN. Many applications need a wider CMR performance from both of these interface types.
- 372KB
- 5
May 10, 2017 · The main difference is the bus arbitration of CAN, which means that the network topology is flexible and there is no need for a master to control traffic. In RS-485 there is no built-in mechanism to toggle who gets to send, meaning that RS-485 tends to end up in a star network topology centred around a master.
Apr 25, 2022 · RS-485 and CAN both happen to be serial communication protocols; they allow multi-drop device arrangement in a single system, considerably cut down cable lengths, are designed to be used in electrically noisy environments, both are terminated using 120 ohms resistance and are equipped with internal over voltage circuit for fault protection.
Jan 18, 2024 · INTRODUCTION. Communication protocols are essential for establishing connections between devices and for effective data interchange in industrial and automation applications. The Recommended Standard 485 (RS485) and the Controller Area Network (CAN) are two of the most widely used protocols in this industry.
CAN (Controller Area Network) and RS485 are both popular standards in fieldbus systems. RS485 only addresses layer 1 (the physical layer) CAN also adds layer 2 (the data link layer) in the OSI model. Both are based on multiple nodes connected to a shared serial bus with one or more acting as a master being possible.
Feb 21, 2024 · Data on the 3.3V CAN bus is transmitted using two states derived from the potential difference between CANH and CANL signals: Dominant state: When controllers send logic ‘0’, the state of the bus will be dominant, and the potential difference between CANH and CANL will be approximately 2V.
Dec 14, 2023 · Business Technology Trends. CAN vs. RS485: Serial Communication Protocols. Shankar. December 14, 2023. Which is Better: CAN vs. RS485 for Serial Communication? In the world of serial communication protocols, two popular options stand out: CAN (Controller Area Network) and RS485.
