Rockwell-automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual de usuario descargar pdf (Pagina 103)

103Publication 1769-UM009E-EN-P - August 2009 103

Chapter

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

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Rockwell-automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual de usuario Pagina 103