Allen-Bradley

Allen-Bradley 1747-PIC SLC 500 RS-232 to RS-485 Interface Converter

SKU 1747-PIC

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Allen-Bradley
  • Product No.: 1747-PIC
  • Origin United States
  • Product Type: Interface Converter
  • Payment: T/T, Western Union
  • Weight: 0.25 kg
  • Dimensions: 15.0 x 10.0 x 5.0 cm
  • Shipping port: Xiamen
  • Warranty: 12 months

Tags

Quantity

Product Description

Description

The Allen-Bradley 1747-PIC is a dedicated interface converter module designed to facilitate communication between programming terminals and SLC 500 modular hardware systems. Specifically engineered to bridge RS-232 serial ports to the RS-485 DH-485 industrial network, this unit provides a reliable physical layer conversion for legacy automation architectures. It is primarily utilized for program uploading, downloading, and online monitoring of SLC 5/01, SLC 5/02, and SLC 5/03 processors.

This converter requires a direct hardware connection to native, built-in computer COM ports supporting standard UART protocols. It operates independently of complex operating system driver layers when paired with compatible 32-bit software environments, making it a foundational tool for legacy plant floor maintenance and commissioning.

Features

  • Converts RS-232 signals to RS-485 DH-485 communication standards
  • Compatible with Allen-Bradley SLC 5/01, SLC 5/02, and SLC 5/03 processors
  • Integrated 11-inch ribbon cable for convenient physical connection to processor communication ports
  • Low power consumption profile rated at a maximum of 2 watts
  • Direct hardware-level pass-through eliminating complex protocol translation overhead

Applications

  • Legacy Allen-Bradley SLC 500 system programming and configuration
  • DH-485 network troubleshooting and node connection
  • Plant floor maintenance utilizing older programming terminals with native serial ports

Technical Specifications

Parameter Specification
Manufacturer Allen-Bradley
Catalog Number / SKU 1747-PIC
Product Type RS-232 to RS-485 Interface Converter
Supported Processors SLC 5/01, SLC 5/02, SLC 5/03 (DH-485 network)
Source Interface RS-232 (DH-485 / AIC+ compatible)
Destination Interface RS-485 (DH-485 network)
Power Consumption 2W max
Cable Length 11 inches (ribbon cable)
Country of Origin United States

Connections / Interfaces

The 1747-PIC features a physical interface configuration tailored for legacy industrial computing standards:

  • Computer Side: RS-232 connection requiring a native, physical serial port (COM port). Note that USB-to-serial adapters, PCMCIA serial cards, and PCI/PCIe serial expansion boards are not supported due to the low-level timing requirements of the DH-485 protocol.
  • Processor Side: Integrated 11-inch ribbon cable terminating in an 8-pin mini-DIN connector designed to plug directly into the channel 0 communication port of SLC 500 fixed or modular processors.

Installation Guidelines

  1. Ensure the host computer and the SLC 500 processor are powered off before making any physical connections to prevent electrical transient spikes.
  2. Connect the RS-232 end of the converter directly to a native motherboard COM port on the programming terminal.
  3. Plug the integrated 11-inch ribbon cable connector into the DH-485 communication port on the SLC 5/01, SLC 5/02, or SLC 5/03 processor.
  4. Configure RSLinx Classic or legacy programming software to utilize the appropriate DF1/DH-485 driver mapping for the physical COM port in use.
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What processors are compatible with the Allen-Bradley 1747-PIC?
The 1747-PIC is designed specifically to interface with Allen-Bradley SLC 5/01, SLC 5/02, and SLC 5/03 processors utilizing the DH-485 communication protocol.
Can I use a USB to serial adapter with the 1747-PIC?
No. The 1747-PIC requires a native, built-in hardware COM port on the host computer. USB-to-serial adapters, PCMCIA serial cards, and serial expansion boards are not supported because they cannot handle the low-level timing requirements of the DH-485 protocol.
What is the power consumption of the 1747-PIC module?
The unit consumes a maximum of 2 watts of power during operation.
How long is the integrated cable on the 1747-PIC?
The 1747-PIC features an integrated 11-inch ribbon cable used to connect directly to the processor communication port.
Reviews

1747-PIC

Stock & lead time on request

Call
1 of 1

Allen-Bradley 1747-PIC SLC 500 RS-232 to RS-485 Interface Converter

Only 16 item(s) left in stock
  • Manufacturer: Allen-Bradley

  • Product No.: 1747-PIC

  • Country of origin:United States

  • Product Type: Interface Converter

  • Payment: T/T, Western Union

  • Weight: 250g

  • Dimensions: 15.0 x 10.0 x 5.0 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Quantity
View full details

Product Description

Description

The Allen-Bradley 1747-PIC is a dedicated interface converter module designed to facilitate communication between programming terminals and SLC 500 modular hardware systems. Specifically engineered to bridge RS-232 serial ports to the RS-485 DH-485 industrial network, this unit provides a reliable physical layer conversion for legacy automation architectures. It is primarily utilized for program uploading, downloading, and online monitoring of SLC 5/01, SLC 5/02, and SLC 5/03 processors.

This converter requires a direct hardware connection to native, built-in computer COM ports supporting standard UART protocols. It operates independently of complex operating system driver layers when paired with compatible 32-bit software environments, making it a foundational tool for legacy plant floor maintenance and commissioning.

Features

  • Converts RS-232 signals to RS-485 DH-485 communication standards
  • Compatible with Allen-Bradley SLC 5/01, SLC 5/02, and SLC 5/03 processors
  • Integrated 11-inch ribbon cable for convenient physical connection to processor communication ports
  • Low power consumption profile rated at a maximum of 2 watts
  • Direct hardware-level pass-through eliminating complex protocol translation overhead

Applications

  • Legacy Allen-Bradley SLC 500 system programming and configuration
  • DH-485 network troubleshooting and node connection
  • Plant floor maintenance utilizing older programming terminals with native serial ports

Technical Specifications

Parameter Specification
Manufacturer Allen-Bradley
Catalog Number / SKU 1747-PIC
Product Type RS-232 to RS-485 Interface Converter
Supported Processors SLC 5/01, SLC 5/02, SLC 5/03 (DH-485 network)
Source Interface RS-232 (DH-485 / AIC+ compatible)
Destination Interface RS-485 (DH-485 network)
Power Consumption 2W max
Cable Length 11 inches (ribbon cable)
Country of Origin United States

Connections / Interfaces

The 1747-PIC features a physical interface configuration tailored for legacy industrial computing standards:

  • Computer Side: RS-232 connection requiring a native, physical serial port (COM port). Note that USB-to-serial adapters, PCMCIA serial cards, and PCI/PCIe serial expansion boards are not supported due to the low-level timing requirements of the DH-485 protocol.
  • Processor Side: Integrated 11-inch ribbon cable terminating in an 8-pin mini-DIN connector designed to plug directly into the channel 0 communication port of SLC 500 fixed or modular processors.

Installation Guidelines

  1. Ensure the host computer and the SLC 500 processor are powered off before making any physical connections to prevent electrical transient spikes.
  2. Connect the RS-232 end of the converter directly to a native motherboard COM port on the programming terminal.
  3. Plug the integrated 11-inch ribbon cable connector into the DH-485 communication port on the SLC 5/01, SLC 5/02, or SLC 5/03 processor.
  4. Configure RSLinx Classic or legacy programming software to utilize the appropriate DF1/DH-485 driver mapping for the physical COM port in use.
Loading product navigation…

What processors are compatible with the Allen-Bradley 1747-PIC?

The 1747-PIC is designed specifically to interface with Allen-Bradley SLC 5/01, SLC 5/02, and SLC 5/03 processors utilizing the DH-485 communication protocol.

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

No. The 1747-PIC requires a native, built-in hardware COM port on the host computer. USB-to-serial adapters, PCMCIA serial cards, and serial expansion boards are not supported because they cannot handle the low-level timing requirements of the DH-485 protocol.

What is the power consumption of the 1747-PIC module?

The unit consumes a maximum of 2 watts of power during operation.

How long is the integrated cable on the 1747-PIC?

The 1747-PIC features an integrated 11-inch ribbon cable used to connect directly to the processor communication port.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

Technical knowledge

Seeing PID Behavior Before Tuning the Loop

PID tuning becomes safer when engineers can see how proportional, integral, and derivative actions reshape error, output, and response over time. This guide turns live trends into a disciplined...

Commissioning a Linear Axis Without Hiding Mechanical Faults

A linear axis should be proven mechanically before aggressive tuning begins. This commissioning workflow covers scaling, direction, limits, homing, STO, low-speed tests, and evidence-based tuning for...

Interposing Relays: Isolation, Load Matching, and Diagnostics

Interposing relays protect PLC and DCS interfaces by separating voltage domains, matching output capacity to field loads, and making faults easier to isolate. This guide explains selection,...

Filtering Noisy PLC Signals Without Hiding Real Faults

Input filtering can stabilize PLC data, but excessive smoothing delays alarms and masks process changes. Learn how to diagnose noise, select hardware or software filters, and validate response time.

SCR or PWM? Choosing a Drive for Brushed DC Motors

SCR and PWM drives regulate brushed DC motors differently. Compare current ripple, low-speed torque, field control, feedback, reversing, braking energy, electromagnetic effects, and retrofit risks...

How Industrial Inverters Build AC From a DC Bus

Industrial inverters synthesize controlled AC from a DC bus, but reliable operation depends on PWM, motor control, cable effects, braking energy, thermal limits, protection, and commissioning across...