Allen-Bradley 1785-PFB PLC-5 Communication Coprocessor Module

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Manufacturer: Allen-Bradley
Product No.: 1785-PFB
Country of origin:United States
Product Type: Communication Coprocessor Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 720g
Dimensions: 4.1cm x 18.8cm x 26.2cm
Shipping port: Xiamen
Warranty: 12 months

Description

The Allen-Bradley 1785-PFB is an industrial communication module designed to establish network linkages within distributed control configurations. Operating as a hardware integration device for the legacy PLC-5 processor architecture, it provides co-processing resources that handle data exchanges independently of primary scanner routines. The assembly features a dedicated serial portal layout, combining a main channel that executes signaling protocols over a standard RS-485 interface with a secondary auxiliary port that supports standard RS-232 serial links. By handling specific network traffic and communication overhead locally, the 1785-PFB ensures continuous and consistent data transfers across heterogeneous field networks and specialized host infrastructure in continuous processing environments.

Features

Dual integrated serial channels accommodating parallel RS-485 and RS-232 infrastructure layout options.
Independent coprocessor execution loops to offload heavy serialization layers from the host central processor unit.
Front-facing built-in multi-segment status display offering localized visual feedback.
Standard form-factor alignment matched for direct installation inside conventional PLC-5 chassis slots.

Applications

Real-time network interfacing with peripheral instruments and auxiliary field instrumentation.
Distributed multi-node serial networking within centralized processing operations.
Point-to-point data acquisition links for localized host SCADA tracking.

Technical Specifications

Parameter	Specification
Manufacturer	Allen Bradley
Model Number	1785-PFB
Product Line	PLC 5
Product Type	Communication Coprocessor Module
Primary Port	Standard RS-485 Interface
Serial Port	Includes an RS-232 Port
Display Type	LED Display
Current Draw	200 mA at 5V DC
Weight	2.19 lbs (0.99 kg)
Minimum Operating Temperature	0 degC
Maximum Operating Temperature	60 degC
Minimum Storage Temperature	-40 degC
Maximum Storage Temperature	85 degC
Minimum Relative Humidity	5% (Non-Condensing)
Maximum Relative Humidity	95% (Non-Condensing)
Installation Height	1000 m

Connections/Interfaces

Connector Pin	Function
Primary Port Channel	Standard RS-485 structural communications networking interface
Serial Port Channel	Auxiliary RS-232 communication connection link

Installation Guidelines

Chassis Slot Insertion: Slide the module firmly into its designated chassis path until it fully seats into the rear connection socket strip.
Environmental Oversight: Maintain operating space conditions within 0 to 60 degC to prevent localized overheating of internal chips.
Condensation Control: Ensure surrounding humidity scales strictly between 5% and 95% without non-condensing moisture accumulation.

Key Features:

#Communication Modules #PLC-5

What type of serial interface channels are physically built into the device?

The communication module features a primary port utilizing a standard RS-485 interface along with a secondary serial port containing an RS-232 line interface.

What are the exact backplane electrical ratings required to run the device?

The module requires a standard internal input current draw of 200 mA operating at 5V DC.

What is the maximum qualified environment altitude rating for normal deployment?

The module is designed and specified for stable industrial installation at elevations extending up to 1000 meters.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	White
Country of origin	United States
Power source	DC Power

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Allen-Bradley 1785-PFB PLC-5 Communication Coprocessor Module