Product Details
Product Overview
The Allen Bradley 1756-IB16DK functions as a high-performance digital DC input module within the ControlLogix platform. It provides 16 individual diagnostic input points that detect and report field-side faults, such as open wire or short circuit conditions. This module features a K-suffix conformal coating, providing an essential layer of protection against moisture, dust, and corrosive chemical vapors. We supply this unit as 100% Brand New and Original, ready for integration into mission-critical control architectures.
Technical Specifications
The 1756-IB16DK operates within precise electrical parameters to ensure logic accuracy:
| Feature | Specification |
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | ControlLogix |
| Input Type | 16 Diagnostic Inputs (Sink) |
| Nominal Input Voltage | 12-24 Volts DC |
| Operating Voltage Range | 10-30 Volts DC |
| Input Delay Time | 4ms + hardware filter time |
| Max Power Dissipation | 5.8 Watts @ 60°C |
| Backplane Current (5V) | 150 mA |
| Removable Terminal Block | 1756-TBCH or 1756-TBS6H |
| Coating | Conformal Coated (K-Version) |
Engineering Advantages
The 1756-IB16DK addresses specific industrial pain points through advanced hardware design:
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Real-Time Diagnostics: This module identifies wire breaks and short circuits at the individual point level. This eliminates hours of manual troubleshooting by pinpointing the exact location of field-side electrical failures directly in the Studio 5000 environment.
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Corrosive Environment Resilience: The "K" designation signifies factory-applied conformal coating. This protects the internal circuitry from "creeping" corrosion in wastewater treatment plants, paper mills, and oil refineries, significantly extending the mean time between failures (MTBF).
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Enhanced Signal Integrity: A 4ms hardware delay combined with user-configurable software filters prevents "contact bounce" and electrical noise from triggering false logic states.
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Flexible Maintenance: The module supports Removable Terminal Blocks (RTB). Maintenance teams can replace a faulty module without disconnecting field wiring, reducing mean time to repair (MTTR) during critical system outages.
FAQs
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What is the significance of the 'K' in 1756-IB16DK?
The 'K' suffix indicates that the module features a conformal coating. This specialty resin layer shields the PCB from humidity and environmental contaminants, making it the standard choice for harsh or "dirty" industrial locations.
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Does this module support "Sourcing" field devices?
No. The 1756-IB16DK is a "Sink" input module. The field device must provide (Source) the positive voltage to the module input terminals to complete the circuit.
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Which terminal blocks should I use for this module?
The module requires either the 1756-TBCH (36-pin Cage Clamp) or the 1756-TBS6H (36-pin Spring Clamp). These must be purchased separately if you are not reusing existing blocks.
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Can I replace a standard 1756-IB16D with this 1756-IB16DK?
Yes. The 1756-IB16DK is functionally identical to the 1756-IB16D but includes the added benefit of conformal coating. It fits the same chassis slot and uses the same I/O configuration in your PLC program.
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
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