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Allen Bradley SLC 500 Direct Communication Module 1747-DCM

Allen Bradley SLC 500 Direct Communication Module

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ManufacturerAllen Bradley

Part number1747-DCM

Module Type Direct Communication Module (DCM)

Supported Protocol Remote I/O (RIO)

Transmission Rate 57.6K baud (10,000 ft), 115.2K baud (5,000 ft), 230.4K baud (2,500 ft)

Slot Occupancy 1 slot

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Connects SLC 500 to RIO network Supports various baud rates Single slot module Facilitates distributed processing Status LED indicators

Product description

The Allen-Bradley 1747-DCM is a Direct Communication Module (DCM) designed for SLC 500 systems. It allows SLC 500 controllers to act as adapters on a Remote I/O (RIO) network, facilitating data transfer between SLC 500 processors and a supervisory controller. This single-slot module supports various transmission rates, including 57.6K baud up to 10,000 feet, enabling distributed processing systems.

This module is crucial for building distributed control architectures, commonly found in manufacturing plants and process facilities where multiple SLC 500 controllers need to communicate with a central system. It enables real-time data exchange and interlock signals for enhanced operational control.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen-Bradley 1747-DCM. We provide reliable industrial automation components with competitive pricing and fast shipping, ensuring your legacy systems remain operational.

Technical specifications

Module Type	Direct Communication Module (DCM)
Supported Protocol	Remote I/O (RIO)
Transmission Rate	57.6K baud (10,000 ft), 115.2K baud (5,000 ft), 230.4K baud (2,500 ft)
Slot Occupancy	1 slot
Backplane Current Consumption	360 mA @ 5V DC
Cable	Belden 9463

Common applications

Distributed Control Systems

Manufacturing

Process Control

SLC 500 Systems

Industrial Networking

Compatible systems

Allen-Bradley SLC 500 Fixed and Modular Controllers

Also known as

1747-DCM Communication Module SLC 500 RIO Adapter Allen Bradley DCM

Replaces / compatible with

The 1747-DCM is designed for SLC 500 systems and is used to establish communication on RIO networks. It is a key component for maintaining and expanding existing SLC 500 installations.

Technical note

Expert tip

Proper configuration of the DIP switches is essential for the DCM to correctly interpret the RIO system address and establish communication.

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Frequently asked questions

What is the maximum transmission rate and distance supported by the Allen-Bradley 1747-DCM module?

The 1747-DCM supports transmission rates up to 230.4K baud at 2,500 feet, 115.2K baud at 5,000 feet, and 57.6K baud at 10,000 feet when using the appropriate terminating resistor.