1770-HT1 | Allen-Bradley RS-232 to RIO Communications Controller | Original Spare Parts

1770-HT1 — Allen-Bradley RS-232 to Remote I/O Communications Controller (Original Spare Parts)

As a procurement manager sourcing critical spare parts for industrial automation infrastructure, you need components that are 100% Brand New and Factory Sealed — no refurbished units, no compromises. The Allen-Bradley 1770-HT1 is a precision-engineered communications controller designed to bridge RS-232 serial devices with Remote I/O (RIO) networks in demanding PLC System environments. Supporting both DF1 full-duplex and half-duplex protocols, this Original New control module delivers deterministic, high-speed data exchange between legacy serial equipment and Allen-Bradley PLC-5 control systems. Every unit we supply is verified as 100% Original and Brand New, backed by full manufacturer traceability.

Industrial facilities running legacy serial instrumentation — from barcode scanners and weighing scales to HMIs and analyzers — face the persistent challenge of integrating these assets into modern RIO-based control architectures without costly system overhauls. The 1770-HT1 solves this directly: it acts as a robust protocol gateway, enabling seamless data flow between RS-232C devices and the RIO network backbone of your PLC-5 system. Whether you operate in Oil & Gas, Power Generation, or Discrete Manufacturing, this Industrial Automation spare part eliminates communication bottlenecks and extends the operational life of your existing control infrastructure.

Sourced directly from authorized channels, our 1770-HT1 inventory is available for immediate dispatch. Contact our team today to confirm availability, pricing, and lead time.

Typical Application Scenarios

The 1770-HT1 addresses real-world integration pain points across multiple heavy industries:

• Oil & Gas: Interface RS-232 flow computers and gas analyzers with PLC-5 control systems in upstream and midstream facilities — eliminating manual data transcription and reducing human error risk.
• Power Plants: Connect serial-based protection relays and metering devices to RIO networks for centralized SCADA monitoring, improving grid reliability and response time.
• Automotive Manufacturing: Integrate legacy serial vision systems and torque controllers into automated assembly lines without replacing functional equipment.
• Water & Wastewater Treatment: Link RS-232 analytical instruments (pH, turbidity, chlorine sensors) to PLC-5 processors for real-time process control and regulatory compliance reporting.
• Food & Beverage: Connect checkweighers, label printers, and batch controllers to RIO networks, supporting traceability and production efficiency requirements.

Core Features & Technical Advantages

1. Dual DF1 Protocol Support: Operates in both full-duplex (point-to-point) and half-duplex (multi-drop) modes — providing Robust flexibility for diverse serial device topologies.
2. Heavy-duty Industrial Design: Rated for 0°C to 60°C operating environments with UL Listed, CE Marked, and RoHS Compliant certifications — built for continuous industrial duty cycles.
3. RIO Network Power Draw: Powered directly from the RIO network (24V DC) — no external power supply required, simplifying panel design and reducing installation cost.
4. Precision Baud Rate Range: RS-232 interface supports 300 to 19,200 bps; RIO interface operates at up to 230.4 Kbps — ensuring compatibility with both legacy and modern serial devices.
5. Real-time Diagnostic LEDs: Built-in status indicators provide instant visual feedback on communication health, accelerating fault isolation during maintenance windows.
6. Seamless PLC-5 Integration: Fully compatible with all Allen-Bradley PLC-5 family processors (1785-L series), configurable via RSLogix 5 programming software.

Technical Specifications & Selection Guide

Selection Guide: Choose the 1770-HT1 when your application requires RS-232 serial device integration into an existing Allen-Bradley RIO network. For RS-485 multi-drop serial networks, consider the 1770-KF2. For Ethernet-based PLC-5 connectivity, refer to the 1785-L40E.

Logistics & Professional Service

• ✅ 2-Day Express Shipping Available: Urgent MRO and shutdown requirements accommodated — contact us to confirm expedited dispatch options for your region.
• ✅ 1-Year Warranty: All 1770-HT1 units are covered by a 12-month warranty against manufacturing defects and functional failures under normal operating conditions.
• ✅ EOL Legacy System Support: We specialize in sourcing End-of-Life (EOL) Allen-Bradley components. If the 1770-HT1 is no longer available through standard distribution channels, our global sourcing network can locate verified original stock.
• ✅ Full Documentation Provided: Datasheets, installation manuals, and certificates of conformance available upon request.
• ✅ Fast Global Shipping: Serving customers across North America, Europe, Southeast Asia, and the Middle East with reliable international logistics partners.

FAQ — Frequently Asked Questions

Q1: What is the price of the Allen-Bradley 1770-HT1?
A: Pricing for the 1770-HT1 varies based on order quantity, market availability, and current stock levels. Because this is an Industrial Automation spare part with fluctuating supply, we recommend contacting our sales team directly at sale@ninermas.com for a real-time competitive quote. Volume discounts are available for multi-unit orders.

Q2: Is the 1770-HT1 in stock and what is the lead time?
A: We maintain ready stock of the 1770-HT1 for immediate shipment. Standard lead time is 2-5 business days for international orders. For urgent plant shutdowns or emergency MRO requirements, expedited shipping can be arranged. Contact us to confirm current inventory status.

Q3: Can you provide a Datasheet or technical documentation for the 1770-HT1?
A: Yes. The official Allen-Bradley 1770-HT1 datasheet, installation instructions, and user manual are available upon request. These documents cover communication parameter configuration, wiring diagrams, and RSLogix 5 setup procedures. Email sale@ninermas.com with your inquiry.

Q4: Is this a genuine Allen-Bradley (Rockwell Automation) original part?
A: Absolutely. Every 1770-HT1 unit we supply is 100% Original and Brand New, sourced through verified supply channels. We do not sell refurbished, remanufactured, or counterfeit components. Certificate of origin and traceability documentation are available upon request to support your procurement compliance requirements.

Q5: Is the 1770-HT1 compatible with ControlLogix or CompactLogix platforms?
A: The 1770-HT1 is specifically designed for Allen-Bradley PLC-5 systems communicating via Remote I/O (RIO) networks. It is not natively compatible with ControlLogix or CompactLogix platforms, which use EtherNet/IP or ControlNet architectures. For those platforms, alternative communication modules are recommended.

Q6: Do you support international export and customs documentation?
A: Yes. We provide full export documentation including commercial invoices, packing lists, certificates of origin, and HS code classification support to facilitate smooth customs clearance for international shipments.

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