1.Product Overview​

The ​Allen-Bradley 1756-IB32 ControlLogix® 32-Point DC Input Module​ provides high-density digital signal acquisition for industrial control systems. Designed for Rockwell Automation’s flagship ControlLogix platform, this module supports ​32-channel 24V DC sinking/sourcing inputs​ with ​group isolation​ (8 points per isolated bank). Its ruggedized construction (–40°C to +70°C operational range) withstands vibration (5g IEC 60068-2-6) and features NEMA 4X/IP67 protection with terminal blocks. Integrated diagnostics include ​per-channel LED status indicators, ​electronic keying, and ​latching logic​ for precise fault tracing. Studio 5000® integration enables millisecond timestamping and real-time diagnostics for predictive maintenance in mission-critical applications.

​2.Critical Technical Specifications​

​Defining performance metrics:

• ​Input Channels: 32× 24V DC (sinking/sourcing selectable per 8-point group)
• ​Input Voltage: 10–31V DC (ON-state min. 15V DC @ 8mA)
• ​Isolation: 1500V AC field-to-backplane, 250V AC group-to-group
• ​Response Time: ≤1ms OFF→ON / ≤5ms ON→OFF (software-filter adjustable 0–16ms)
• ​Power Consumption: 120mA @ 5.1V DC backplane, 25mA per input (max)
• ​Surge Immunity: ±30V continuous tolerance (EN 61000-4-5)
• ​Connection System: Removable 1756-TBCH high-density terminal block
• ​Environmental: UL Type 1, IP67 with kit
• ​Certifications: UL 61010-1, ATEX II 3G, IECEx, SIL 2 (IEC 61508)

​3.Targeted Applications​

​Large-scale discrete automation:

• ​Automotive Plants: Body shop clamp monitoring across 500+ station control panels
• ​Warehouse Automation: Photoelectric sensor networks for high-speed parcel sorting
• ​Pharmaceutical Packaging: Vial counter inputs with 21 CFR Part 11 compliance
• ​Oil & Gas: Wellhead safety valve status feedback in API 14F Zone 2 areas
• ​Food Processing: Conveyor jam detection with washdown-rated IP67 terminals
• ​Material Handling: Palletizer layer completion switches with SIL 2 diagnostics
• ​Renewable Energy: Wind turbine blade pitch limit switches (DNV-GL certified)

​4.Competitive Advantages​

​Operational differentiators:

• ​Channel Density: 32 inputs in single-slot footprint (industry-leading space efficiency)
• ​Diagnostic Intelligence: ​PointFault™ technology​ detects open wires in <2ms
• ​Commissioning Speed: Tool-free 1756-TBCH terminal blocks reduce wiring by 60%
• ​Safety Integration: SIL 2 functional safety ready for E-stop chains
• ​Lifecycle Cost: Hot-swappable terminals enable <5-minute module replacement
• ​Data Richness: 1ms event timestamping for sequence-of-event root cause analysis
• ​EMC Resilience: ±6kV surge protection without external suppressors

​5.Functional Capabilities​

​Advanced diagnostics & control:

• ​Programmable Filtering: Noise rejection from 0.1ms–16ms per channel group
• ​Event Capture: Latch-on-transient signals as brief as 100µs
• ​Intrinsic Safety: Direct NAMUR sensor support without barriers
• ​Status Mirroring: Auto-replicates data to redundant GuardLogix® controllers
• ​Thermal Monitoring: Auto-derates above 60°C with predictive alerts
• ​Force/Lock Functions: Maintenance bypass modes via Studio 5000®
• ​Load Visualization: Real-time per-channel state tags for HMI integration
• ​Firmware Security: Signed update validation prevents unauthorized changes

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Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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