DeviceNet Scanner Question

At the moment I am trying to set up my first DeviceNet system. I notice however that the DeviceNet Scanner (1769-SDN) is not supplying the other nodes with 24V dc (on the red & black lines). Is this correct? Do I need to connect an external 24V to these lines on the scanner? Thanks in advance

Yes you do need an external 24VDC supply

DeviceNet advice including psu issues


Part number for AB product is
1606XLS-DNET4

DeviceNet 101, the Media Guide

There is a very straightforward DeviceNet Media and Installation guide that A-B has published for the past 10 years. Chapter 1 includes a checklist for all the straightforward media rules including the way that the 24V supply voltage works.

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/dnet-um072_-en-p.pdf

This publication includes all the information you need to successfully install a DeviceNet media system.