Allen-Bradley 1756-RM2 User Manual

24 Rockwell Automation Publication 1756-UM535D-EN-P - November 2012
Chapter 2 Design an Enhanced Redundancy System
Components of an Enhanced
Redundancy System
The central components of a ControlLogix enhanced redundancy system are
those in the redundant chassis pair. You can connect other system components to
the redundant chassis pair. However, the redundant chassis pair, and the
components within it, provide redundant communication and control features.
This table lists the components available with enhanced redundancy systems.
Please note that some component availability is revision-specific.
Table 4 - Components Available for Use in a Redundant Chassis Pair
Product Type Cat. No. Description Page
Redundancy
module
1756-RM2/A ControlLogix redundancy module
This component is available with enhanced redundancy
systems, revision 16.057, 16.081, 19.052 or later when
using 1756-L6x controllers, and 19.053 or later when
using 1756-L7x controllers.
31
1756-RM2XT ControlLogix-XT™ redundancy module
This component is available with enhanced redundancy
systems, revision 16.057, 16.081, 19.052 or later when
using 1756-L6x controllers, and 19.053 or later when
using 1756-L7x controllers.
1756-RM ControlLogix redundancy module
1756-RMXT ControlLogix-XT redundancy module
Chassis 1756-A4 ControlLogix 4-slot chassis
28
1756-A4LXT ControlLogix-XT™ 4-slot chassis, -25…60 °C (-13…140 °F)
This component is available with enhanced redundancy
systems, revision 19.052 or later.
1756-A5XT ControlLogix-XT 5-slot chassis
1756-A7 ControlLogix 7-slot chassis
1756-A7XT ControlLogix-XT 7-slot chassis, -25…70 °C (-13…158 °F)
1756-A7LXT ControlLogix-XT 7-slot chassis, -25…60 °C (-13…140 °F)
1756-A10 ControlLogix 10-slot chassis
1756-A13 ControlLogix 13-slot chassis
1756-A17 ControlLogix 17-slot chassis
Communication
modules
1756-CN2/B ControlLogix ControlNet bridge module
32
1756-CN2R/B ControlLogix redundant media ControlNet bridge module
1756-CN2RXT ControlLogix-XT ControlNet bridge module
1756-EN2T ControlLogix EtherNet/IP bridge module
1756-EN2F ControlLogix EtherNet/IP fiber bridge module. This component
is available with enhanced redundancy systems, revision
20.054 or later.
1756-EN2TR ControlLogix EtherNet/IP 2-port module
This component is available with enhanced redundancy
systems, revision 19.052 or later.
1756-EN2TXT ControlLogix-XT EtherNet/IP bridge module

Allen-Bradley 1756-RM2 Specifications

General

Brand	Allen-Bradley
Model	1756-RM2
Category	Control Systems
Language	English