Shenzhen
3onedata Technology Co., Ltd
1
www.3onedata.com
Chapter 1 Summarize
1.1 Introduction
CAN485 is used for data exchange between CAN-Bus field bus and RS-485 bus interface converter, and
supports Modbus RTU protocol. CAN485 interface converter integrated a RS-485 channel and a CAN-Bus channel
can be easily embedded using RS-485 interface for communication nodes, do not need to change the original
hardware architecture enables the device to obtain the CAN-Bus communication interface, to achieve between the
equipments of RS-485 and CAN-Bus network connection and data communication. RS-485 channel CAN485
devices to support a variety of baud rate, the range is 300bps~115200bps. CAN-Bus channel support CiA
recommended a variety of standard baud rate and user-defined baud rate, the range of 2.5Kbps~1Mbps. CAN485
interface converter provides three types of data conversion: transparent conversion, encryption conversion and
Modbus protocol conversion.
Its exterior design supports DIN-Rail mounting and Wall mounting, which is convenient for engineering
application. The board comes with a photoelectric isolation module, complete electrical isolation control circuit and
CAN-Bus communication circuit, so that the CAN485 converter has a strong anti-interference ability, greatly
improving the system in the harsh environment of the use of reliability.
1.2 Product Features
Support CAN2.0A and CAN2.0B protocol, in compliance with the ISO/DIS 11898 specification
Bidirectional data communication between CAN-Bus and RS-485
Integrated 1 CAN-Bus communication interface, support for user-defined baud rate
Integrated 1 RS-485 three pins type communication interface, communication rate between 300~115200bps
can be set
Provide three kinds of data conversion modes: transparent conversion, transparent with the identity conversion,
Modbus protocol conversion
CAN-Bus circuit using 2000V AC electrical isolation, support 8KV electrostatic protection (air discharge)
CAN-Bus baud rate 2.5k~1Mbps
Maximum frame rate: 500 frames per second
DC9~48V wide voltage supply input, power supply support reverse connection
IP40 protection grade, DIN-Rail or wall mounting installation
-40-
75℃ working temperature
