SLC 500 | Allen-Bradley 1747-KE DH-485 RS-232C Interface Module

Product Description

The Allen-Bradley 1747-KE is a versatile interface module for the SLC 500 series, providing reliable communication between PLC systems and external devices via DH-485 and DF1 protocols. This module integrates a single configuration port, a DF1 port, and a DH-485 port, supporting data transmission speeds from 300 to 19,200 Kbps, enabling efficient and flexible industrial connectivity.

Designed for durability, the 1747-KE ensures stable operation across a wide temperature range and is capable of withstanding harsh industrial conditions. The module features robust port isolation and high-accuracy clock/calendar functions for precise timing and scheduling tasks. It is suitable for panel or rack-mounted installations using standard Belden 9463 cabling.

Key Specifications

• Manufacturer: Allen-Bradley

• Model: 1747-KE

• Product Type: SLC 500 Interface Module

• Series: SLC 500

• Module Type: Interface Module with DH-485 and RS-232C communication

• Communication Ports: One configuration port, one DF1 port, one DH-485 port

• Supported Protocols: DH-485, DF1

• Transmission Speed: 300–19,200 Kbps

• Port Isolation: 500 VDC between backplane and CONFIG port; 500 VDC between backplane and DF1 port; 500 VDC between CONFIG and DF1 ports

• Clock/Calendar Accuracy: ±1 minute/month at 25°C (77°F), +0/-6 minutes/month at 60°C (140°F)

• Operating Temperature: 0–60°C (32–140°F)

• Storage Temperature: -40–85°C (-40–185°F)

• Relative Humidity: 5–95% non-condensing

• Backplane Current Draw: 150 mA at 5 VDC, 40 mA at 24 VDC

• Connectors: 6-pin Phoenix connector

• Cable Recommendation: Belden 9463 or equivalent

• Weight: 0.94 lbs (0.43 kg)

Features

• Single-slot interface module compatible with SLC 500 PLC racks

• Supports multiple industrial communication protocols (DH-485, DF1)

• High isolation voltage for reliable signal integrity

• Wide temperature and humidity tolerance for industrial environments

• Built-in clock/calendar with high accuracy for timed operations

Application Scenarios

The Allen-Bradley 1747-KE module is ideal for connecting SLC 500 PLCs to DH-485 networks, remote terminals, and RS-232C-enabled devices in process automation, manufacturing lines, and facility management systems requiring precise timing and reliable communication.

FAQs

Q: Can the 1747-KE communicate with modern PLCs?
A: It is designed for SLC 500 systems and may require protocol converters for integration with newer PLC platforms.

Q: What type of cable should be used for DH-485 networks?
A: Belden 9463 or equivalent shielded twisted-pair cable is recommended.

Q: How accurate is the internal clock?
A: ±1 minute per month at 25°C (77°F) and +0/-6 minutes per month at 60°C (140°F).