Rockwell Automation 1500 DeviceNet MV Controllers Installation Instructions - Manual (Page 26)

7-2 System Commissioning and Software Installation
1500-IN057C-EN-P – June 2013
When installing a DeviceNet MV controller line-up, use the following
checklist before applying power to the network:

Number of nodes does not exceed 64, with three nodes reserved for
scanner (node 00), PC (node 62), and new device (node 63)
 Individual drop lengths do not exceed 20 feet (6 m)
 Cumulative drop length does not exceed the desired network baud
rate limit: 128 feet (39 m) at 500 kbps or 256 feet (78 m) at 250 kbps
 Total trunk length does not exceed the maximum allowable per the
network baud rate: 246 feet (75 m) at 500 kbps or 492 feet (150 m) at
250 kbps
 Verify that all devices are programmed to the same baud rate and
autobaud is disabled
 Verify that terminating resistors are in place at the trunk line
terminations and measure for proper resistors (121 ohms, 1/4 W, 1%,
metal film)
 Verify that the power supply for the system is 24 Vdc
 Total power load and distribution points do not exceed 8 A
 The system has one, and only one, earth ground for the V-
 There is an earth ground connection
 All connections are inspected for loose wires, opens, and shorts
The following general steps, along with references for more information,
are provided to assist with the DeviceNet software installation process.
1. Install the communication card in your personal computer.
2. Load the Windows hardware drivers for the communication card.
3. Load RSNetworx™ for DeviceNet and RSLinx software.
4. Configure the RSLinx driver.
Within the RSWho function, make sure no unrecognized devices
(i.e., ―?‖ symbols) appear for any devices. If an unrecognized device
appears, load the Electronic Data Sheet (EDS) file. See the ―How to
Find Electronic Data Sheets (EDS)‖ in Appendix A.
I M P O R T A N T I M P O R T A N T
Do not leave the RSWho constantly browsing. Be sure
to close the RSWho screen or disable the Autobrowse.
System Commissioning
Checklist
DeviceNet Software
Installation checklist