1747-PIC | Allen Bradley | SLC 500 Personal Computer Interface Converter

Product Overview

The Allen Bradley 1747-PIC serves as a specialized Personal Computer Interface Converter within the SLC 500 ecosystem. This hardware module bridges the gap between a standard computer's RS-232 serial port and the DH-485 network used by SLC 500 controllers. It facilitates critical programming, monitoring, and data acquisition tasks by translating electrical signals between these two distinct protocols. Despite its compact footprint, the 1747-PIC operates as a vital link for maintenance engineers and system integrators who require direct access to legacy automation logic and processor diagnostics.

Technical Specifications

Engineering Advantages

• Seamless Protocol Conversion: The 1747-PIC converts standard RS-232 signals into the DH-485 industrial format. This allows engineers to utilize standard laptops or workstations for deep-level PLC programming and real-time troubleshooting without expensive proprietary network cards.

• High-Speed Diagnostic Processing: With a program scan time of 0.9 ms and I/O scan time of 0.225 ms, the interface ensures rapid data throughput. This prevents communication lag during online monitoring, allowing the software to reflect the actual state of the machine logic instantaneously.

• Ruggedized Port Protection: The converter includes specialized circuitry to handle the electrical noise common in industrial environments. This protects both the PC’s serial port and the PLC’s communication channel from potential damage caused by ground loops or transient voltage spikes.

• Simplified Field Deployment: The 1747-PIC requires no external power supply, as it draws necessary power directly from the SLC 500 processor's DH-485 port. This simplifies field service kits by eliminating extra cables and power adapters.

• Direct Flash Memory Access: The interface supports direct interaction with the PLC's 64,000-word user memory and Flash backup. This streamlines the process of uploading or downloading complex instruction sets (up to 4,000 instructions) during system commissioning or disaster recovery.

FAQs

• Is this 1747-PIC unit 100% Brand New?

  Yes. We supply this 1747-PIC interface converter in 100% Brand New, original factory condition. Each unit undergoes strict quality verification to ensure it meets the original Rockwell Automation signaling standards for DH-485 communication.

• Can I use the 1747-PIC with a USB-to-Serial adapter?

  The 1747-PIC requires a native, built-in UART serial port on your computer to function correctly. Most USB-to-Serial converters fail to provide the precise timing required by the PIC driver. For modern laptops lacking serial ports, we recommend using the 1747-UIC (USB to DH-485) converter instead.

• Does the 1747-PIC support Windows 10 or 11?

  The 1747-PIC driver (PIC/AIC+) typically requires an older operating system (like Windows XP) or a very specific serial port configuration to operate within RSLinx. Maintenance teams often use virtual machines or dedicated legacy workstations to facilitate this connection.

• Which SLC 500 processors are compatible?

  This converter primarily supports SLC 5/01, 5/02, and 5/03 processors via their DH-485 ports. It also connects to the DH-485 port on PanelView terminals for firmware updates and application transfers.