Allen-Bradley 1785-BEM Backup Communication Module

Allen-Bradley 1785-BEM
Allen-Bradley 1785-BEM
Allen-Bradley 1785-BEM

1785-BEM Product datasheet  

Model number:

1785-BEM

 

Module Type:

Back-up Communication Exp Module

Manufacture:

Allen-Bradley

 

Condition:

Brand New

Range of Product:

PLC-5

 

Lead time:

In Stock

Weight:

0.52k

 

HS CODE:

8537101190

Dimension:

3x14.7x26cm

 

MOQ:

1

Product Origin:

USA

 

System:

PLC

Discontinued on:

July 31, 2011

 

Communication Service:

Ethernet router

 

1785-BEM Functional Description

The 1785-BEM Back-up Communication Exp Module PLC-5 Backup Communication Module by Allen-Bradley is designed to provide reliable communication backup and high-speed data transfer between two connected PLC processors. Installed in a single I/O slot on the 1771 chassis, the 1785-BEM Back-up Communication Exp Module ensures that processor data is securely backed up, preventing data loss during system failures. With a current draw of 0.6A at 5V DC, the 1785-BEM Back-up Communication Exp Module supports 32-bit input capability on the processor's image table for enhanced processing power.

 

This 1785-BEM Back-up Communication Exp Module features a switch assembly with four adjustable switches for easy configuration, as well as a field wiring arm (26-14 AWG) that ensures secure and reliable connections. The module is equipped with the 1771-CD cable connector for DH+ and Remote I/O (RIO) communication, supporting a communication speed of up to 1.2 Mega Baud. It also includes a factory-installed 0.25A relay at 24V DC for added functionality.

 

The 1785-BEM Back-up Communication Exp Module ensures seamless keying to the backplane via specific pin connections and comes with CE, UL, and CSA certifications for safety and compliance. Its operating temperature range is from 0 to 60°C (32 to 140°F), and it has a storage temperature range of -40 to 85°C (-40 to 185°F). The 1785-BEM Back-up Communication Exp Module is an essential addition for ensuring high availability and reliability in industrial control systems.

 

On the front panel, the 1785-L80B Controller Module features status indicators like PROC, FORCE, and COMM to provide real-time feedback on the controller’s operation. These indicators, along with the four communication channels, make the 1785-L80B a versatile and reliable choice for complex automation tasks.

 


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  •       One Year Warranty

    We offer a one-year warranty for any quality issues with our products. If you encounter any defects or malfunctions during this period, please contact us for prompt resolution. Our warranty covers repairs or replacements, ensuring your satisfaction and peace of mind.

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Classic PLC-5 Family Processor Features


From the family of PLC-5 processors, you can choose the processor(s) that you need for your application. Features common to all Classic PLC-5

processors are:

  1. same physical dimensions
  2.  use of the left-most slot in the 1771 I/O chassis
  3.  can use any 1771 I/O module in the processor-resident local I/O chassis with up to 32 points per module
  4.  same programming software and programming terminals
  5.  same base set of instructions
  6.  ladder programs and SFCs can be used by any of the PLC-5 processors

 

The PLC-5 processor in adapter mode acts as a remote station to the supervisory processor. The adapter-mode PLC-5 processor can monitor and control its processor-resident local I/O while communicating with the supervisory processor via a remote I/O link.

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