Allen-Bradley 1747-UIC SLC 500 USB to DH-485 Interface Converter

Product Overview

The Allen-Bradley 1747-UIC is a SLC 500 USB to DH-485 Interface Converter from Rockwell Automation. This interface converter provides computers with USB ports a direct connection to SLC 500, MicroLogix, and ControlLogix controllers, as well as PanelView terminals with DH-485 ports. It solves the common challenge of integrating modern PCs with legacy DH-485 networks without requiring additional power supplies.

Technical Specifications Breakdown

Key parameters for the 1747-UIC are listed below for quick reference:

Industry Applications

For example, a plant engineer can use the 1747-UIC to upload ladder logic from a SLC 5/03 processor without installing legacy serial cards. The USB-powered design eliminates the need for an external power supply, reducing setup time and cable clutter. Compared to older PCMCIA-to-DH-485 adapters, this solution offers higher reliability and lower total cost of ownership.

Installation & Setup Guidance

Connect the 1747-UIC to your computer's USB port. The converter draws power directly from the USB port, so no additional power adapter is required. Use the provided USB cable and connect the DH-485 port to the target controller's DH-485 network. The switch-selectable DH-485 ports allow easy configuration for different network topologies. Ensure the communication rate is set to 19200 bits/second for proper operation. The RJ-45 (Ethernet) port provides direct connection to SLC 500, 5/01, 5/02, 5/03, AIC, and PanelView devices. The RS-232 DB9 port offers an alternative serial interface.

Maintenance & Reliability

Inspect the USB connector and DH-485 port periodically for dust or corrosion. The operating temperature range of 0-60 Celsius ensures reliable performance in typical industrial environments. The 500V DC circuit isolation between power and DH-485 common protects against ground loops. Store the converter in a clean, dry environment when not in use. No routine calibration is required.

Compatibility & Integration

The 1747-UIC is compatible with SLC 500, MicroLogix, and ControlLogix controllers, as well as PanelView terminals with DH-485 ports. It supports both Ethernet and RS-232 communication protocols. The flash backup memory allows firmware updates via USB.

Selection Guide & Purchasing Advice

When selecting an USB-to-DH-485 interface converter, verify that your computer has an available USB port and that your target controller supports DH-485 communication. The 1747-UIC is a reliable choice for legacy system integration. AutoDCSTech offers competitive pricing and fast shipping for this part.

Troubleshooting & Common Issues

If the computer does not recognize the converter, check the USB cable connection and try a different USB port. Ensure the DH-485 network is properly terminated. If communication fails, verify that the baud rate matches the controller's setting (19200 bits/second). For persistent issues, update the device drivers from Rockwell Automation's website.