Rockwell-automation 1756-CN2RXT ControlLogix-XT ControlNet Interface M Manual de usuario descargar pdf (Pagina 9)

ControlLogix-XT ControlNet Interface Module 9

Publication

1756-IN634A-EN-P - April 2009

Using the 1756-CN2RXT for Standalone or Redundant Control

You can use the 1756-CN2RXT modules either in standalone or

redundant configurations.

A standalone configuration uses:

• one control chassis that contains the 1756-CN2RXT and the

175

6-L63XT controller.

• one or both channels of the 1756-CN2RXT module connected

to the ControlNet network.

A redundant configuration uses:

• two controller chassis called the redundant chassis pair. Each

cha

ssis of the pair must contain at least these modules:

– 1756-L63XT controller.

– 1756-CN2RXT ControlNet module.

– 1756-RMXT redundancy module.

• one or both channels of the 1756-CN2RXT module connected

to the ControlNet network.

For more information about redundancy control, refer to the

ControlLogix Redundancy System User Manual, publication

1756-UM523.

IMPORTANT

If you are using the 1756-CN2RXT in a redundant system, these hardware

considerations must be made:

• Each redundant chassis of the pair must be configured with identical

modules placed in identical slots. These module pairings between the

two chassis are called partners.

• All partner modules in redundant chassis pairs must be at the same

firmware revision.

• For ControlNet module partners, the ControlNet network address must

be the same for each module of the pair.

• These modules cannot be used in redundant chassis pairs that contain

1756-CN2RXT modules:

– 1756-DHRIOXT or 1756-DHRIO

– 1756-SRM

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Rockwell-automation 1756-CN2RXT ControlLogix-XT ControlNet Interface M Manual de usuario Pagina 9