The DeviceNet network is a fieldbus network protocol based on the Controller Area Network (CAN). In the DeviceNet_ network, the terminal resistor plays a role in compensating and protecting signal transmission. The function of the terminal resistor is to eliminate signal reflection and interference. In the DeviceNet network, reflections occur when signals are transmitted on the bus. Terminal resistors can eliminate these reflected signals and ensure the signal transmission quality.

How to connect the terminal resistor in DeviceNet. In the DeviceNet network, there are two ways to connect the terminal resistor: terminal connection and plug connection.

Terminal connection method

The terminal connection method is to connect the terminal resistor directly to the end terminal of the DeviceNet network. This connection method is suitable for the end of the bus, that is, when there is only one terminal device on the bus. The advantage of the terminal connection method is that it is simple and convenient and does not require additional plugs and sockets. However, if there are multiple terminal devices on the bus, then this connection method is not applicable.

Plug connection method

The plug connection method is to connect the terminal resistor to the plug and socket of the DeviceNet network. This connection method is suitable for situations where there are multiple terminal devices on the bus. The advantage of the plug connection method is that terminal equipment can be easily replaced and added, and the connection between the terminal resistor and the terminal equipment is more reliable. In the plug connection method, there is a terminal resistor on the plug and the socket. The terminal resistor on the plug ensures the terminal resistance of the bus, and the terminal resistor on the socket ensures the intermediate resistance of the bus.