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Allen Bradley 1785-BEM Communications Expansion Module

Based on over 5000 reviews

Description:1785-BEM — PLC-5 communications expansion module enabling redundant DH+ and Remote I/O channel switching and system-level backup support for high-reliability industrial control architectures.

Product condition: New

Packing condition:Factory Packing

100% insured shipping: A guarantee for your purchases


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Product Specifications
Manufacturer Allen-Bradley
Item number 1785-BEM
Country of Origin United States
Lead Time In stock
After-Sales Support 12-months
HS Code / Commodity code 8537101190
FAQ

Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.

Yes,we offer one year warranty for all new products.

Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.

Normally 3-5 working days,some remote areas 5-7 days more.

Product information

v Mark VI Series:1785-BEM

The 1785-BEM is the Backup Expansion Communication Module in the Allen-Bradley PLC-5 series, used to implement dual-machine redundancy and communication channel backup switching in PLC-5 control systems. This module is typically used in conjunction with the 1785-BCM (Backup Communication Module) to achieve high-speed data synchronization and automatic switching between primary and backup PLC-5 controllers.

This module supports Data Highway Plus (DH+) and Remote I/O channel backup switching to improve the availability and fault tolerance of critical control systems, and is widely used in high-reliability industrial scenarios.


v 1785-BEM Specification

Product Model: 1785-BEM

Product Series: Allen-Bradley PLC-5

Module Type: Backup Communications Expansion Module

Matching Module: 1785-BCM Series B

Communication Functions: DH+ / Remote I/O channel backup switching

Communication Interface: 1771 rack backplane interface

Backup Mechanism: Master/backup PLC-5 controller communication synchronization

I/O Support: Supports data synchronization with remote I/O

Switch Configuration: DIP Switch - Sets communication channel mode

Installation Method: 1771 PLC-5 I/O rack slot


v The 1785-BEM offers numerous advantages:

Redundant Communication Architecture Support

Enables communication backup and automatic switching between dual PLC-5 systems, improving system availability.

 

Enhanced System Reliability

Automatically switches to a backup path in case of main controller or communication link failure, ensuring production continuity.

 

Supports Critical Industrial Networks

Compatible with DH+ and Remote I/O channels, suitable for traditional PLC-5 industrial network architectures.

 

Works in conjunction with 1785-BCM

Enhances BCM system capabilities as an extension module, enabling a more complete redundant control solution.

 

Industrial-Grade Stable Design

Suitable for high-reliability continuous operation systems, such as energy and heavy industry applications.


v Why choose the 1785-BEM ?

Power and Energy Systems: Used for redundant communication and critical equipment protection in power plant control systems.

 

Petrochemical Industry: Used for dual-machine hot standby and communication redundancy architectures in process control systems.

 

Manufacturing Automation: Used for critical control systems on production lines to improve system continuous operation capability.

 

Water Treatment Systems: Used for redundant control architectures in pumping stations and water supply systems.

 

Metallurgy and Mining: Used for high-reliability communication assurance in heavy-duty equipment control systems.

 

Infrastructure Systems: Used for redundant control networks in transportation, energy, and large industrial systems.


v Other related models

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