Allen Bradley 1747-DCM SLC I/O Digital Modules

The Allen-Bradley 1747-DCM is a Direct Communication module that is compatible for use with the SLC 500 Fixed style and Modular style Programmable Logic Controllers (PLC). This module allows any SLC 500 controller to establish connection to Remote I/O (RIO) industrial network.

The 1747-DCM is a single slot module with a backplane current consumption of 360 milliamperes @ 5 Volts DC. As an assembly, it comes with status LED indicators such as FAULT LED and COMM LED. It has a removable door cover, pre-installed with the door label. The module’s front panel hosts the front label, cable tie slots, and the RIO link connector. At the side of the module, module information as well as DIP switches can be accessed.

Technical specifications for 1747-DCM

ManufacturerRockwell Automation

Operating Temperature0°C to 60°C (32°F to 140°F)

Module TypeDirect Communication Module (DCM)

Part Number/Catalog No.1747-DCM

BrandAllen-Bradley

Supported Protocol:Remote I/O (RIO)

Transmission rate:57.6K baud at 10,000 ft; 115.2K baud at cable length of 5000 feet

Communication cable:Belden 9463 or any equivalent

Terminating resistor:82 Ohms; 150 Ohms

Compatible controllers:SLC 500 Fixed and Modular style

Operation modes:Standard and non-extended node

LED indicators:FAULT; COMM

Backplane Current:360 mA @ 5VDC

SeriesSLC 500

Communication PortUniversal Remote I/O Adapter

Backplane Current (5 Volts)360 milliamps

CableBelden 9463

Connectors6-Pin Phoenix Connector

Weight0.37 pounds (168 grams)

Dimensions5.72 x 1.37 x 5.15 inches

The 1747-DCM supports a variety of communication speed and may be operated at standard and extended node capability. With extended capability, the module may be configured with a transmission rate of 57.6K baud @ 10,000 feet at 57.6K baud; 115.2K baud @ 5,000 feet at 115.2K baud and 230.4K baud @ 2,500 feet at 230.4K baud with 82 Ohms, 1/2 Watt terminating resistor installed at the start and last node. With standard node capability, supported transmission rates are 57.6K baud @ 3048 meters (10,000 feet) and 115.2K baud @ 1524 meters (5,000 feet) with 150 Ohm, ? Watt terminating resistor. Also supported is 230.4K baud @ 762 meters (2,500 feet) with 82 Ohms, 1/2 Watt terminating resistor.