Allen Bradley 1747-PIC 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.

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Product Specifications

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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

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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

FAQ

1. What is the primary function of the 1747-PIC interface converter?
   It converts RS-232 serial signals to RS-485 (DH-485) for communication with SLC 5/03 controllers.

2. Which SLC processors are compatible with this interface?
   It is specifically designed for use with SLC 5/03 series processors.

3. Is the 1747-PIC used for permanent installation or temporary access?
   It can be used for both, but is most commonly applied for programming and maintenance access.

4. Does this converter support DH-485 network communication?
   Yes, it enables communication on DH-485 networks.

5. Can this device be used for controller diagnostics?
   Yes, it supports online monitoring, diagnostics, and troubleshooting through programming software.

6. Does the interface affect controller scan performance?
   No, it only handles communication and does not influence logic execution.

7. Is special configuration required to use the 1747-PIC?
   Basic communication settings must match the controller and programming device, but no complex setup is required.

8. Can the converter be shared between multiple controllers?
   Yes, it can be moved between systems as needed for maintenance or commissioning.

9. What type of serial connector does it use?
   It uses a standard 25-pin D-sub connector.

10. Is the 1747-PIC suitable for modern Ethernet-based systems?
    No, it is intended for legacy RS-232 and DH-485 communication environments.

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