What is DeviceNet used for?

DeviceNet® is a digital, multi-drop network that connects and serves as a communication network between industrial controllers and I/O devices, providing users with a cost-effective network to distribute and manage simple devices throughout the architecture.

What speed does DeviceNet run at?

DeviceNet data rates are 125, 250, or 500 Kilobits per second. The longer the length needed will result in a slower data rate and vice versa. “Thick” Round cable has a range of maximum length of 1,640 feet at 125 Kilobits per second to a maximum length of 328 feet at 500 Kilobits per second.

Is DeviceNet obsolete?

Sales of ControlNet and DeviceNet are almost non-existent and many customers are converting these networks to Ethernet/IP for ease of maintenance. While there are currently no plans to obsolete these networks, costs to maintain such networks continue to rise as sales volumes decrease.

What is special about DeviceNet cable?

DeviceNet cables offer an open, low-cost system that link between industrial devices such as sensors and actuators and higher-level devices such as programmable logic controllers and PCs. Belden DeviceNet cables allow you to configure real-time networks and eliminate costly installation expenses.

How many nodes can a DeviceNet network have?

64 nodes
There are a maximum of 64 nodes on a DeviceNet network. These nodes occupy MacIDs (addresses) 0 to 63 and can be set using switches or using a DeviceNet configuration tool. No two devices can occupy the same DeviceNet Address. At power on each DeviceNet device sends out a message requesting access to the network.

What are the DeviceNet specs?

The DeviceNet specs define the acceptable topology and components. The topology variations are also showed below: The specs also detail the ground system, the mix of thick and thin cables, termination and power source. The basic trunk line – drop line topology uses 1 cable (two twisted pairs separated for power and signal).

What are the physical components of DeviceNet?

The “physical layer” of DeviceNet consists of a combination of cables, nodes, taps and termination resistors in a trunkline–dropline topology. We will discuss these physical components in the following articles.

How many devices can I have on a DeviceNet network?

A DeviceNet network may have up to 64 devices, with one device on each node addressed from 0 to 63. Anyone of them may be used. There is no restriction for using them, although the use of the 63 is not recommended, as this is normally used for commissioning.

What data rates does DeviceNet support?

DeviceNet supports 125 kbit/s, 250 kbit/s and 500 kbit/s data rates. Depending on the chosen cable type, DeviceNet can support communication up to 500 meters (using round, large diameter cable). Typical round cable supports up to 100 meters, while flat-style cable supports up to 380 meters at 125 kbit/s and 75 meters at 500 kbit/s.