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1756-RM2

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The Allen-Bradley 1756-RM2 is a single-slot ControlLogix redundancy module for standard chassis and ControlLogix 5570 or 5580 controller pairs.
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Technical specifications for 1756-RM2

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-RM2
  • Product Family:
    ControlLogix
  • Product Type:
    Allen-Bradley 1756-RM2 ControlLogix Redundancy Module
  • Stock:
    1
  • Current Draw at 5.1V DC:
    1.16 A
  • Current Draw at 24V DC:
    3.4 mA
  • Power Dissipation:
    6 W max
  • Thermal Dissipation:
    21 BTU/hr
  • Slot Width:
    1 slot
  • Connector Cables:
    1756-RMC1, 1756-RMC3, 1756-RMC10
  • Supported Controllers:
    ControlLogix 5570 and 5580
  • Operating Temperature:
    0 to 60 C
  • Weight:
    0.29 kg
  • Estimated shipping dimensions:
    3.5 x 14 x 17 cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Pair Planning Fiber Link Commissioning

Features:

  • •Single-slot redundancy module for standard ControlLogix chassis
  • •Supports ControlLogix 5570 and 5580 controller families
  • •Uses 1756-RMC1, 1756-RMC3, or 1756-RMC10 redundancy cables

1756-RM2 provides the hardware link used between qualified standard-chassis ControlLogix redundancy partners.

Procurement should align the module series, controller family, chassis, power architecture, and fiber-cable length on both sides.

A controlled replacement plan should preserve firmware records, project backups, diagnostic history, and the approved synchronization procedure.

Availability is subject to Apter Power's current inventory and sourcing confirmation.

Verified resources for Allen-Bradley 1756-RM2:

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Allen-Bradley 1756-RM2 ControlLogix Redundancy Module Specs

General

  • ManufacturerAllen-Bradley
  • Model1756-RM2
  • ConditionNew Original ready stock
  • Product FamilyControlLogix

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Redundant controller pair planning

  • •Controller match: Confirm the installed ControlLogix 5570 or 5580 controller family.
  • •Chassis match: Use a supported standard 1756 chassis on both sides of the pair.
  • •Power review: Document standard or redundant power architecture before replacement.
  • •Series record: Capture the existing module series and firmware qualification record.

Redundancy-link preparation

  • •Cable length: Select the documented 1 m, 3 m, or 10 m 1756-RMC cable.
  • •Route control: Protect the redundancy cable from tight bends and unplanned rerouting.
  • •Pair check: Verify both modules and the selected cable before synchronization.
  • •Spare plan: Keep the cable identity with the module spare record.

Commissioning review

  • •Configuration backup: Preserve the controller project and redundancy configuration.
  • •Module identity: Check catalog number and series before installation.
  • •Diagnostic review: Clear link and synchronization faults before acceptance.
  • •Recovery test: Use the site procedure to confirm expected switchover behavior.
Description
The Allen-Bradley 1756-RM2 provides the chassis-based redundancy link for ControlLogix 5570 and ControlLogix 5580 controller systems. It occupies one slot in a standard ControlLogix chassis.

The Allen-Bradley 1756-RM2 supports 1756-RMC1, 1756-RMC3, and 1756-RMC10 redundancy cables. Standard chassis choices include 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17.

The Allen-Bradley 1756-RM2 should be matched to the installed controller family, chassis, power architecture, module series, and redundancy cable before procurement or field replacement.
Revisions

Revision Part #

Also known as

1756-RM2 Ser A
1756-RM2/A, Series A, Rev A
Alternative Names
1756RM2 1756 RM2 AB 1756-RM2 Allen Bradley 1756-RM2 Rockwell 1756-RM2 ControlLogix 1756-RM2 1756-RM2 module 1756-RM2 redundancy module
Technical notes
The Allen-Bradley 1756-RM2 is a single-slot ControlLogix redundancy module for standard chassis and ControlLogix 5570 or 5580 controller pairs. Confirm the installed chassis, series, power architecture, and module context before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What should be confirmed before ordering Allen-Bradley 1756-RM2?
Confirm the controller family, standard ControlLogix chassis, power arrangement, installed series, and required 1756-RMC cable length.
Which redundancy cables are specified for 1756-RM2?
Rockwell Automation lists 1756-RMC1, 1756-RMC3, and 1756-RMC10 cables for 1 m, 3 m, and 10 m links.
Can 1756-RM2 be used in a ControlLogix-XT chassis?
The official specification assigns 1756-RM2 to standard chassis; use 1756-RM2XT when the documented architecture requires an XT chassis.
What site information helps identify a correct 1756-RM2 replacement?
Provide the module nameplate, controller family, chassis number, power-supply arrangement, redundancy cable, firmware record, and required quantity.
Does 1756-RM2 require a dedicated chassis slot?
Yes. The official technical data identifies 1756-RM2 as a single-slot, chassis-based module that may be installed in any slot.
How can Apter Power support a 1756-RM2 quotation?
Send the model, series, quantity, destination, and installed ControlLogix details for sourcing and system-matching review.