Autotech Controls - Highest Functionality per Cubic Inch

THE DEVICENET SLAVE NETWORK RESOLVER
THE SINGLE-TURN AND MULTI-TURN DEVICENET NETWORK RESOLVERS

I/O DATA EXCHANGE

Support for Strobe, Poll, Cyclic, and Change-of-State (COS) data exchange methods are included in the DeviceNet Network Resolver:

Strobed -- Multi-Cast message starts off the scan cycle. Strobable slaves, such as the DeviceNet Network Resolver, respond based on their latency.
Polled -- Master interrogates each node according to the "polling list". Polls are sent out even as strobe responses are being received, as bandwidth allows.
Cyclic -- Devices report data on a user-configured, time-increment-basis (input or output). Cyclic data production is considered more efficient for applications with slowing changing analog I/O.
COS -- Device reports its data only when there is a change. This is considered more efficient, since only data changes are transmitted. It can be used along with Poll or Strobe.

A DeviceNet product may behave as a Client, Server, or both. Up to 64 Node Addresses called Media Access Control Identifiers (or "MAC IDs"), can be connected to a single DeviceNet network and the end-to-end distances that can be accommodated are dependent upon the speed of the network. A DeviceNet running at a baud rate of 125 kbps can extend up to 1640 ft (500 m) while a DeviceNet, running at a baud rate of 500 kbps, can only extend to 328 ft (100m).