Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual - Manual (Page 103)

103 Publication 1769-UM009E-EN-P - August 2009 103
Chapter
7
Use the 1769-SDN Scanner Module with
MicroLogix Controllers
Introduction This chapter contains an example in which the 1769-SDN scanner module is
used with a MicroLogix 1500 controller. This table describes what this chapter
contains and where to find specific information.
MicroLogix 1500
Controllers The MicroLogix 1500 programmable controller has two different processors
that are compatible with the 1769-SDN scanner module. The 1764-LSP and
1764-LRP processors can use the scanner module as a DeviceNet master and
own DeviceNet slave devices. This allows either processor to communicate
with intelligent devices like drives, scales, and starters, or use the DeviceNet
network to expand the processor’s I/O capacity.
The 1764-LRP processor allows messaging functionality over the DeviceNet
network, so non-I/O data may be exchanged. Multiple 1769-SDN scanner
modules may be used in a 1764-LRP system. However, only the first two
scanners can be used for messaging.
The amount of power that modules draw from the processor or expansion
power supply, and the amount of data that the processor can support will
determine how many can be used. Configuration tools are available from
http://www.ab.com/micrologix to determine if an application can be supported
In addition to electrical limitations, data space limitations also exist. The
maximum size of the input and output images for each module in the system is
250 input and 250 output words of data.
Topic Page
MicroLogix 1500 Controllers 103
RSLogix 500 Programming Software I/O
Configuration 104
Backplane Messaging 111
Program Upload and Download 112
Configure a Local DeviceNet Message 113