Allen Bradley 1747-PIC SLC 500 Interface Converter

Product Introduction

The Allen-Bradley 1747-PIC Interface Converter is a communication interface device designed for SLC™ 500 programmable controller systems, specifically for use with the SLC 5/03 series processors. Its primary role is to convert RS-232 serial communication to RS-485 (DH-485), enabling reliable communication between a programming terminal and SLC 500 controllers.

The 1747-PIC is commonly used as a programming and diagnostic interface, allowing engineers to connect a PC or handheld programming device to DH-485 networks. By handling signal conversion and protocol compatibility, it ensures stable data exchange without requiring internal communication modules.

This interface converter is widely applied in legacy and long-life automation systems where DH-485 remains an essential communication standard. Its straightforward operation and proven reliability make it a standard accessory in SLC 500 maintenance and commissioning workflows.

Product Specifications

Applications

• Programming and commissioning of SLC 5/03 controllers via DH-485 networks

• System diagnostics and troubleshooting, enabling direct communication with controllers

• Maintenance operations in legacy SLC 500 installations

• Temporary or permanent programming access where internal communication modules are not available

• DH-485 network access from standard RS-232 serial devices

• Industrial automation environments using established Allen-Bradley communication standards

Advantages

• Reliable RS-232 to DH-485 conversion, ensuring stable communication with SLC 5/03 controllers

• Simple external interface design, requiring no internal controller modifications

• Standard 25-pin connector, compatible with common industrial serial cabling

• Proven DH-485 communication support, widely used in SLC 500 systems

• Portable and service-friendly, ideal for field maintenance and diagnostics

• Robust industrial construction, suitable for plant-floor environments

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