Genuine Allen-Bradley 1771-IB Digital Input Module | PLC-5 Series — Verified Source
The Allen-Bradley 1771-IB is a 16-point DC digital input module designed for the PLC-5 programmable controller platform — one of Rockwell Automation’s most enduring and widely deployed industrial control architectures. In legacy plant environments, process upgrades, and MRO (maintenance, repair & operations) procurement, sourcing a reliable 1771-IB has become increasingly difficult as the product approaches end-of-life. The scarcity of genuine stock has made this module a prime target for counterfeit parts, refurbished units misrepresented as new, and grey-market inventory with unknown service histories — all of which carry serious risks for production uptime and system safety.
At Konmask, every Allen-Bradley 1771-IB we supply undergoes a documented 4-step verification process before shipment. We source exclusively through traceable supply chains and maintain full procurement records for each unit. Our commitment to authentic, verified components is reflected in every order — from the Certificate of Conformance we issue to the original manufacturer packaging we preserve. When you order from Konmask, you receive a genuine Allen-Bradley module, not a substitute.
Technical Specifications
| Model | 1771-IB |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Module Type | DC Digital Input Module |
| Number of Input Points | 16 |
| Input Voltage Range | 10–30 VDC |
| Input Current (per point) | Approx. 8 mA @ 24 VDC |
| ON-State Voltage Threshold | ≥ 10 VDC |
| OFF-State Voltage Threshold | ≤ 5 VDC |
| Isolation | Optical isolation between field and backplane |
| Backplane Current Draw | 800 mA @ 5 VDC |
| Compatible Platform | PLC-5 I/O Chassis (1771 series) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5–95% non-condensing |
| Dimensions (H × W × D) | Standard 1771 single-slot module form factor |
| Weight | Approx. 300 g |
| Certifications | UL Listed, CE Marked |
Specifications verified against Allen-Bradley / Rockwell Automation official documentation (Publication 1771-IN009).
Our 4-Step Quality Verification Process
Every 1771-IB unit shipped by Konmask passes through the following documented inspection protocol:
Step 1 — Provenance & Documentation Review
We verify the procurement chain for each unit, cross-referencing supplier invoices, lot codes, and date codes against known Allen-Bradley production records. Units with unverifiable origins are rejected at intake.
Step 2 — Physical Authenticity Inspection
Our technicians inspect label printing quality, PCB markings, connector pin condition, housing integrity, and firmware label consistency against reference samples. Any signs of remarking, repackaging, or cosmetic tampering result in immediate rejection.
Step 3 — Functional Bench Testing
Each module is powered up and tested for correct input signal recognition across all 16 channels using calibrated DC signal sources. Backplane communication and optical isolation integrity are verified. Test results are logged per unit serial/lot number.
Step 4 — Pre-Shipment Documentation Package
Upon passing all three prior steps, we prepare and issue: Certificate of Conformance (COC) · Functional Test Report · Packing List with lot traceability · Country of Origin (COO) Declaration · Photos of actual unit and packaging (available on request).
Key Features & Benefits
- 16-Point DC Input Density: Maximizes I/O capacity per chassis slot, reducing hardware footprint in space-constrained control panels.
- Optical Isolation: Field-to-backplane isolation protects the PLC-5 processor from field-side voltage transients and ground loops — compliant with IEC 61131-2 input module isolation requirements.
- Wide DC Input Range (10–30 VDC): Compatible with both 12 VDC and 24 VDC field devices, eliminating the need for signal conditioning in mixed-voltage installations.
- Proven PLC-5 Platform Compatibility: Designed and validated for the 1771 I/O chassis backplane — no firmware configuration required for standard installations.
- Low Input Current Draw: ~8 mA per point minimizes load on field power supplies, supporting high-density sensor wiring per IEC 60364 panel design guidelines.
- MRO-Ready Availability: Konmask maintains verified stock to support urgent maintenance and plant-shutdown scenarios where lead time is critical.
Typical Applications
- Oil & Gas: Wellhead control panels and pipeline SCADA systems using legacy PLC-5 architectures requiring verified replacement I/O modules.
- Automotive Manufacturing: Body-in-white assembly lines and paint shop conveyors with existing 1771-series I/O infrastructure.
- Water & Wastewater Treatment: Pump station and filtration plant control systems where PLC-5 platforms remain in active service.
- Pulp & Paper: Process line DCS/PLC hybrid systems integrating 1771 I/O for discrete sensor monitoring (limit switches, proximity sensors, flow switches).
- Food & Beverage: Packaging and filling line PLCs requiring additional or replacement digital input capacity without full system migration.
- Power Generation & Utilities: Substation and plant auxiliary control panels using PLC-5 for relay logic and status monitoring applications.
Compatible System Components
- 1771-A1B / A2B / A3B / A4B — PLC-5 I/O Chassis (4, 8, 12, 16 slot)
- 1771-P4 / P4S / P6 / P6S — PLC-5 Power Supplies
- 1785-Lxx — PLC-5 Processor Family (L11, L20, L30, L40, L60, L80)
- 1771-WB — Wiring Arm / Terminal Block for 1771 I/O modules
- 1771-IBD — Companion 10–30 VDC input module (8-point variant)
- 1771-OBD / OB — Compatible DC Output Modules for paired I/O configurations
- 1784-KTx / KTXD — PLC-5 Communication Interface Cards
Global Sourcing & Shipping Capabilities
Konmask supplies verified Allen-Bradley 1771-IB modules to industrial buyers across Asia-Pacific, the Middle East, Southeast Asia, Europe, and the Americas. Our primary service regions include China (domestic), Hong Kong, Singapore, Malaysia, India, UAE, Saudi Arabia, Germany, the UK, and the United States.
Packaging Standard: Each unit is packed in anti-static ESD shielding bag, placed in foam-lined rigid carton with desiccant. Outer carton is double-walled corrugated with shock-absorbing inserts for air freight compliance.
Logistics: We ship via DHL Express, FedEx International Priority, and UPS Worldwide — with full tracking, commercial invoice, and packing list documentation provided for customs clearance. Expedited same-day dispatch available for in-stock units on confirmed orders received before 14:00 CST.
Certifications & Compliance Statement
- UL Listed — Underwriters Laboratories (industrial control equipment)
- CE Marked — European conformity for low voltage and EMC directives
- RoHS Compliant — Restriction of Hazardous Substances (EU Directive 2011/65/EU)
- Country of Origin Declaration available per shipment
- Certificate of Conformance (COC) issued with every order
Konmask Quality Commitment: We do not sell modules that have failed our 4-step inspection protocol. If a unit does not meet our authenticity and functional standards, it is not offered for sale. Every order is backed by our documented QC process and our direct-response support team.
How to Order
Step 1 — Submit Your Inquiry: Contact us via email at support@konmask.com or via the product page inquiry form with your required quantity, delivery timeline, and destination country.
Step 2 — Receive Quote & Documentation Preview: We respond within 24 hours with a formal quotation, available stock confirmation, and a preview of the COC and test report for your review.
Step 3 — Confirm & Ship: Upon order confirmation and payment, we dispatch with full shipping documentation. Tracking number provided same day. Sample units and pre-shipment inspection reports available upon request for large-volume orders.
Authenticity & Trust FAQ
Q: How can I verify that the 1771-IB I receive from Konmask is genuine Allen-Bradley?
A: Every unit we ship is accompanied by a Certificate of Conformance and a functional test report. We can also provide pre-shipment photos of the actual unit, label, and packaging. For large orders, third-party inspection (SGS, Bureau Veritas) can be arranged at buyer’s request.
Q: What is your warranty policy on the 1771-IB?
A: We offer a 12-month warranty against manufacturing defects and functional failure under normal operating conditions. If a unit fails within the warranty period, we provide replacement or full refund — no restocking fees. Warranty claims are processed within 5 business days of receiving the returned unit.
Q: Can you provide a test report or COC before I place a large order?
A: Yes. For qualified buyers placing orders above a minimum quantity threshold, we can provide a sample unit with full documentation — including COC, functional test report, and COO declaration — prior to bulk order commitment. Contact us to discuss sample terms.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
