1756-CP3/A Allen-Bradley RS-232 Programmer Cable | Original Spare Parts

1756-CP3/A Allen-Bradley RS-232 Programmer Cable — Industrial-Grade Original Spare Part

As a procurement manager sourcing critical automation components, you need parts that perform without compromise. The 1756-CP3/A is a factory-sealed, 100% Brand New and Factory Sealed RS-232 serial programmer cable manufactured by Rockwell Automation (Allen-Bradley), purpose-built for direct PC-to-controller communication in high-demand Industrial Automation environments. The 1756-CP3/A establishes a stable, noise-resistant serial link between your workstation and Allen-Bradley ControlLogix, CompactLogix, and SLC 500 PLC System platforms — enabling programming, diagnostics, and live monitoring without signal degradation.

Downtime in industrial facilities is costly. Legacy RS-232 interfaces remain the backbone of countless Control Module networks across Oil & Gas, Power Generation, and discrete manufacturing plants. Sourcing a genuine Original New replacement cable that is fully compatible with your existing PLC System infrastructure is non-negotiable. This Spare Parts solution eliminates compatibility guesswork and ensures your team is back online fast.

Backed by a 1-Year Warranty and 2-Day Shipping, this cable is stocked and ready for immediate dispatch worldwide. Contact us today for a competitive quote.

Technical Specifications & Selection Guide

Selection Tip: If your controller uses a USB port rather than RS-232, pair this cable with a certified USB-to-serial adapter. For DH-485 network connections on SLC 500, consider the 1747-CP3 instead.

Core Features & Technical Advantages

• 100% Original Allen-Bradley Component — Genuine Rockwell Automation part, not a third-party clone. Full OEM compatibility guaranteed.
• Robust RS-232 Signal Integrity — Heavy-duty shielding suppresses electromagnetic interference common in industrial plant floors.
• Precision DB9-to-RJ45 Interface — Engineered connector tolerances ensure a secure, rattle-free fit across all supported ControlLogix and SLC 500 processors.
• Broad Platform Compatibility — A single cable supports ControlLogix 1756, CompactLogix L3x/L4x/L8x, and legacy SLC 500 PLC System families.
• Plug-and-Play Deployment — No driver installation required for most Windows environments; recognized instantly by RSLogix and Studio 5000.
• EOL Legacy System Support — Ideal for maintaining end-of-life SLC 500 installations where original Spare Parts are increasingly scarce.

Typical Application Scenarios

Oil & Gas Processing Plants: Field engineers require reliable serial connectivity to upload/download ladder logic to ControlLogix processors controlling compressor stations and pipeline SCADA nodes. The 1756-CP3/A delivers uninterrupted communication even in electrically noisy environments.

Power Generation Facilities: Maintenance teams performing scheduled PLC firmware updates on turbine control systems depend on stable RS-232 links. A failed or counterfeit cable can corrupt a program upload — this Original New part eliminates that risk.

Automotive & Discrete Manufacturing: Production line commissioning engineers use this cable to configure and fine-tune SLC 500 and CompactLogix Control Module parameters during machine startup and changeover cycles.

Water & Wastewater Treatment: Remote pump station PLCs often retain RS-232 serial ports as the primary programming interface. Stocking genuine 1756-CP3/A cables ensures rapid response during unplanned outages.

Pharmaceutical & Food Processing: Validated Industrial Automation environments require traceable, Original New components for audit compliance. This factory-sealed cable meets documentation requirements for regulated industries.

Logistics & Professional Service

• ✅ 2-Day Express Shipping — Global dispatch from stocked inventory. DHL, FedEx, and UPS options available.
• ✅ 1-Year Warranty — Full replacement or refund on any verified manufacturing defect.
• ✅ Certificate of Origin & Datasheet — Official documentation provided upon request for procurement and compliance records.
• ✅ EOL Legacy System Support — We specialize in sourcing discontinued and hard-to-find Allen-Bradley Spare Parts for aging PLC System infrastructure.
• ✅ Technical Pre-Sales Support — Our engineers confirm compatibility before you order. No guesswork, no returns.

FAQ — Frequently Asked Questions

Q: What is the price of the 1756-CP3/A and do you offer volume discounts?
A: Pricing for the 1756-CP3/A is competitive and varies based on order quantity and destination. We offer tiered volume discounts for procurement orders of 5 units or more. Contact sale@ninermas.com with your required quantity for a formal quotation within 24 hours.

Q: Is this a genuine Allen-Bradley / Rockwell Automation part?
A: Yes. Every unit we supply is 100% Original and Brand New, sourced directly from authorized distribution channels. We provide a Certificate of Origin and factory documentation upon request to satisfy your E-E-A-T and audit requirements.

Q: Can I get the official Datasheet for the 1756-CP3/A?
A: Absolutely. The official Rockwell Automation product datasheet and installation guide are available upon request. Email sale@ninermas.com with your order inquiry and we will include all technical documentation.

Q: Is this cable compatible with Studio 5000 Logix Designer?
A: Yes. The 1756-CP3/A is fully compatible with Studio 5000 Logix Designer, RSLogix 5000, and RSLogix 500 software environments on Windows 7/10/11 platforms.

Q: What is the lead time for international orders?
A: Standard lead time is 2 business days for in-stock units. Express international shipping via DHL or FedEx typically delivers within 3-7 business days depending on destination country and customs clearance.

Q: Can this cable support online program editing while the PLC is running?
A: Yes. The cable supports full online programming, real-time tag monitoring, and live edits on all compatible ControlLogix and SLC 500 PLC System processors without interrupting production.