Genuine Allen-Bradley 1756-IV32 ControlLogix 32-Point Sourcing Input Module | 1756 Series – Verified Source
The Allen-Bradley 1756-IV32 is a mission-critical 32-point DC sourcing digital input module within Rockwell Automation’s ControlLogix 1756 platform — one of the most widely deployed industrial control architectures in manufacturing, oil & gas, water treatment, and process automation globally. As demand for legacy and current-generation ControlLogix components continues to outpace OEM supply, the market has seen a significant rise in counterfeit, refurbished-as-new, and grey-market units that carry serious risks: unexpected field failures, voided system warranties, and potential safety incidents in critical infrastructure.
At Konmask, we operate exclusively as a verified distributor of genuine industrial automation components. Every 1756-IV32 unit we supply is sourced through traceable, documented supply chains and undergoes multi-stage authenticity verification before dispatch. Our listings intentionally carry the terms genuine, verified, and authentic because we stand behind every unit with documentation — not just a promise. When you order from Konmask.com, you receive the real part, backed by paperwork.
Technical Specifications
| Part Number | 1756-IV32 |
| Series | Allen-Bradley ControlLogix 1756 |
| Module Type | Digital Input, DC Sourcing (PNP) |
| Number of Input Points | 32 Points |
| Input Voltage Range | 10–31.2 VDC |
| Input Current (per point) | 2 mA @ 10 VDC / 6 mA @ 31.2 VDC |
| ON-State Voltage Min. | 10 VDC |
| OFF-State Voltage Max. | 5 VDC |
| Input Delay (OFF to ON) | 0–2 ms (software configurable) |
| Input Delay (ON to OFF) | 0–2 ms (software configurable) |
| Backplane Current (5 VDC) | 120 mA |
| Power Dissipation (max.) | 1.5 W |
| Operating Temperature | 0–60 °C (32–140 °F) |
| Storage Temperature | -40–85 °C (-40–185 °F) |
| Relative Humidity | 5–95% non-condensing |
| Isolation Voltage | 100 VAC continuous, 1500 VAC for 1 s (field-to-backplane) |
| Wiring System | Removable terminal block (RTB), 40-pin |
| Dimensions (H x W x D) | 94.0 x 94.5 x 58.0 mm (3.70 x 3.72 x 2.28 in) |
| Weight | Approx. 200 g (0.44 lb) |
| Certifications | UL, CE, C-Tick, FM Class I Div 2 |
Specifications verified against Allen-Bradley / Rockwell Automation official documentation (Publication 1756-TD001).
Our 4-Step Quality Verification Process
Every 1756-IV32 unit shipped by Konmask passes through the following verification protocol before packaging:
- Step 1 — Visual & Label Authentication: Physical inspection of housing, label print quality, holographic markings, date codes, and catalog number format against known-genuine reference units. Counterfeit units frequently exhibit label misalignment, incorrect font weights, or missing revision codes.
- Step 2 — Functional Bench Test: Each module is powered up and all 32 input points are exercised using a calibrated test rig. ON/OFF state transitions, input delay response, and backplane communication are verified against Rockwell Automation’s published specifications.
- Step 3 — Firmware & Revision Check: Module firmware revision and hardware series are read via RSLogix 5000 / Studio 5000 and cross-referenced with Rockwell’s product revision history to confirm the unit is not a downgraded or re-flashed counterfeit.
- Step 4 — Documentation Package Preparation: Upon passing all checks, we prepare the shipment documentation: Certificate of Conformance (COC), functional test report, packing list with serial/lot traceability, Country of Origin (COO) declaration, and optional photographic evidence of the specific unit shipped.
Key Features & Benefits
- 32-Point High-Density Sourcing Input: Maximizes I/O density per chassis slot, reducing hardware footprint and total system cost in large-scale control architectures.
- Software-Configurable Input Filtering: 0–2 ms adjustable input delay per point allows fine-tuned noise immunity without hardware changes — compliant with IEC 61131-2 digital input specifications.
- Removable Terminal Block (RTB) Design: Field wiring remains connected to the RTB during module replacement, minimizing downtime during maintenance — a key advantage in 24/7 production environments.
- Full ControlLogix Backplane Integration: Native compatibility with all 1756 chassis and ControlLogix controllers (L6x, L7x, L8x series), supporting Produced/Consumed Tags and direct tag-based programming per IEC 61131-3.
- FM Class I Division 2 Certification: Approved for use in hazardous locations where flammable gases or vapors may be present under abnormal conditions — critical for oil & gas and chemical processing applications.
- Diagnostic Data via Backplane: Module-level diagnostics (communication faults, configuration mismatches) are reported directly to the controller tag database, enabling rapid fault isolation without additional instrumentation.
Typical Applications
- Automotive Manufacturing: Body-in-white welding lines and paint shop conveyors — reading PNP proximity sensors and photoelectric switches for part-present detection and line sequencing.
- Oil & Gas Processing: Wellhead control panels and pipeline SCADA systems — monitoring valve position feedback, pressure switch states, and ESD input signals in Class I Div 2 environments.
- Water & Wastewater Treatment: Pump station and filtration plant control — reading float switches, flow switches, and motor run-status contacts across distributed I/O racks.
- Food & Beverage Processing: Bottling and packaging lines — high-speed detection of product presence, cap detection, and conveyor jam signals requiring fast, reliable input response.
- Pharmaceutical Manufacturing: Clean-room HVAC and batch reactor control — monitoring door interlocks, pressure differential switches, and equipment status in GMP-regulated environments.
- Power Generation & Utilities: Substation automation and turbine control — reading discrete status signals from switchgear, breaker position contacts, and protection relay outputs.
Compatible System Components
- Chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 (all ControlLogix 1756 chassis)
- Controllers: 1756-L61, 1756-L62, 1756-L63, 1756-L71, 1756-L72, 1756-L73, 1756-L74, 1756-L75, 1756-L81E, 1756-L82E, 1756-L83E, 1756-L84E, 1756-L85E
- Power Supplies: 1756-PA72, 1756-PB72, 1756-PA75, 1756-PB75
- Removable Terminal Block: 1756-TBCH (40-pin cage clamp RTB, sold separately)
- Communication Modules: 1756-EN2T (EtherNet/IP), 1756-CN2 (ControlNet), 1756-DNB (DeviceNet)
- Programming Software: RSLogix 5000 v16+ / Studio 5000 Logix Designer v21+
Global Sourcing & Shipping Capabilities
Konmask supplies genuine Allen-Bradley 1756-IV32 modules to industrial buyers across Asia-Pacific, the Middle East, Southeast Asia, Europe, and the Americas. Primary service regions include China (mainland), Hong Kong, Taiwan, Singapore, Malaysia, Thailand, Vietnam, India, UAE, Saudi Arabia, South Korea, and Australia.
- Packaging Standard: Anti-static ESD bag + foam-lined carton + outer corrugated box. Fragile/high-value units are double-boxed with desiccant packs. All packaging is labeled with part number, serial number, and Konmask order reference.
- Shipping Options: DHL Express, FedEx International Priority, UPS Worldwide, SF Express International, and sea freight consolidation for bulk orders. Typical air freight transit: 3–7 business days to most destinations.
- Export Documentation: Commercial invoice, packing list, COO declaration, and COC provided as standard. Additional documentation (FORM E, EUR.1, etc.) available upon request for customs clearance.
- Minimum Order: 1 unit. Volume pricing available for orders of 5+ units — contact us for a formal quotation.
Certifications & Compliance Statement
- ✅ UL Listed — Underwriters Laboratories (File E65584)
- ✅ CE Marked — Compliant with EU Low Voltage Directive and EMC Directive
- ✅ C-Tick / RCM — Australian Communications and Media Authority compliance
- ✅ FM Approved — Class I, Division 2, Groups A, B, C, D hazardous locations
- ✅ RoHS Compliant — Restriction of Hazardous Substances (EU Directive 2011/65/EU)
Konmask Quality Commitment: We do not sell refurbished units as new. We do not source from unverified brokers. Every unit we list as genuine or original has passed our internal verification protocol and is supported by traceable documentation. If at any point you have concerns about the authenticity of a unit received from Konmask, we will provide full documentation review and, where applicable, arrange independent third-party verification at no cost to you.
How to Order
- Submit Your Inquiry: Add to cart and check out directly, or contact us via email at support@konmask.com with your required quantity, delivery timeline, and any special documentation requirements (COC, test report, COO, etc.).
- Receive Quotation & Confirmation: We respond to all inquiries within 24 hours (business days, UTC+8). Your quotation will include unit price, lead time, shipping cost, and available documentation list.
- Order Confirmation & Dispatch: Upon payment confirmation, your order is processed, verified, documented, and dispatched within 1–3 business days. Tracking information and pre-shipment documentation are sent automatically.
Sample & Test Report Policy: For first-time buyers or large-volume orders, we can provide pre-shipment photos of the specific unit(s) to be shipped, along with the functional test report. Sample units (1 pc) are available for evaluation — contact us to discuss terms.
Authenticity & Trust FAQ
- Q: How can I verify that the 1756-IV32 I receive from Konmask is genuine?
- A: Every unit we ship can be verified through three independent methods: (1) Physical label and housing inspection against Rockwell Automation’s published catalog specifications; (2) Firmware revision readback via Studio 5000 / RSLogix 5000, which will display the correct catalog number, series, and revision; (3) Review of our Certificate of Conformance (COC) and functional test report, which document the specific unit’s serial number and test results. We encourage buyers to perform their own incoming inspection and will support any verification process.
- Q: What is Konmask’s warranty policy for the 1756-IV32?
- A: We provide a 12-month warranty against manufacturing defects and functional failure under normal operating conditions. If a unit fails within the warranty period due to a defect (not physical damage or misapplication), we will replace the unit or issue a full refund — your choice. Warranty claims are processed within 5 business days of receiving the returned unit and inspection confirmation.
- Q: Can Konmask provide a test report or Certificate of Conformance (COC) for my order?
- A: Yes. A Certificate of Conformance (COC) is included as standard with every order. A functional test report documenting the specific tests performed and results for your unit(s) is available upon request at no additional charge. For regulated industries (pharmaceutical, nuclear, defense), we can also provide a Country of Origin (COO) declaration and, upon request, arrange third-party inspection by a certified testing laboratory prior to shipment.
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Contact: support@konmask.com | +0086 19859288691
