Product Details
Product Overview
The Allen Bradley 1734-IB8K operates as a high-density digital input module within the POINT I/O family. This module interfaces with field-side sensors and switches, converting 24V DC sinking signals into logic-level data for the controller. The "K" designation signifies a conformal coated build, providing superior resistance against environmental contaminants. We guarantee this unit as 100% Brand New original factory equipment, ready for immediate deployment in distributed I/O architectures.
Technical Specifications
| Feature | Specification Details |
| Manufacturer | Allen Bradley / Rockwell Automation |
| Module Type | Digital DC Input Module (Sinking) |
| Number of Inputs | 8 Points |
| Voltage Category | 24V DC |
| Environmental Protection | Conformal Coated |
| Mounting | DIN Rail (Horizontal or Vertical) |
| Enclosure Type | Open Style (IP20) |
| Operating Voltage Range | 10–28.8V DC |
| Weight | 0.04 lbs (0.018 kg) |
Engineering Advantages
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Environmental Shielding: The conformal coating protects internal circuitry from moisture, salt spray, and corrosive chemical vapors. This hardware enhancement extends the service life of the module in wastewater treatment plants, oil rigs, and chemical processing facilities where standard modules often fail due to oxidation.
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Granular Scalability: The ultra-compact POINT I/O footprint allows you to add I/O in increments of 8 points. This modularity reduces hardware waste and minimizes panel space requirements compared to traditional, bulkier PLC racks.
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Simplified Troubleshooting: Bright LED indicators on the front housing provide instant visual feedback for module status and individual point activity. This feature allows maintenance teams to isolate wiring faults or sensor failures without connecting a laptop.
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Rapid Installation: The module snaps directly onto the 1734-TB or 1734-TBS terminal base. This "Remove and Insertion Under Power" (RIUP) capability—when following proper safety protocols—shortens mean time to repair (MTTR) by allowing module swaps without dismantling the entire I/O stack.
FAQs
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What is the difference between the 1734-IB8 and the 1734-IB8K?
The 1734-IB8K includes a conformal coating on the internal PC board. Electrically, they function identically, but the "K" version offers necessary protection for harsh, humid, or corrosive industrial atmospheres.
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Does this module require a specific terminal base?
Yes. You must install the 1734-IB8K onto a 1734-TB, 1734-TBS, or 1734-TOP terminal base. Ensure you set the mechanical keying on the base to position 1 before inserting the module to prevent hardware damage.
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Can I mix conformal coated and non-coated modules in the same rack?
Yes, the POINT I/O backplane supports a mix of module types. However, for maximum system reliability in harsh environments, engineers typically specify conformal coating for all components within the cabinet.
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Is this product factory sealed?
Absolutely. We sell only 100% Brand New units in original Allen Bradley packaging. Each module includes the original factory seal, ensuring it has never been used or refurbished.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.