Rockwell-automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual de usuario descargar pdf (Pagina 16)

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

Chapter 1 Overview

Input Data Image - CompactLogix

The input data image is transferred from the scanner module to the controller

across the Compact I/O bus.

Output Data Image - CompactLogix

The output data image is transferred from the controller to the scanner

module across the Compact I/O bus.

For additional information about the CompactLogix image structure, refer to

the DeviceNet Modules in Logix5000 Control Systems User Manual,

publication

DNET-UM004

Module Command Array Bit Assignments

Output

Word

Bit Description Behavior

0 0 Run This bit controls when the module scans its

mapped slave devices. When set (1), the

scanner module will process I/O data as

defined by its scanlist. The Fault and Disable

Network command bits must be clear (0) to

scan the network.

1 Fault When set, the scanner’s I/O mode will be

Halt; messaging will still operate. The fault

bit is primarily used to artificially set the

slave devices into a fault state due to some

event or condition within the control

program.

2 Disable network When set, the scanner module is

functionally removed from the network.

Reserved

(1)

N/A

4 Reset Restarts access to the DeviceNet network.

5…15

Reserved

(1)

N/A

1 16…31

Reserved

(1)

N/A

(1)

Do not manipulate reserved bits. Doing so may interfere with future compatibility.

Word Description Data Type

0…89 DeviceNet slave inputs 90-DINT array

Word Description Data Type

0…89 DeviceNet slave outputs 90-DINT array

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 155 156

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