​1.Product Overview​

The ​Allen-Bradley 1756-IB32/B ControlLogix® 32-Point DC Input Module​ delivers high-density digital signal acquisition for industrial automation systems. Designed for Rockwell’s ControlLogix platform, this ​Series B​ module supports ​32 sinking/sourcing 24V DC inputs​ grouped into ​four isolated banks​ (8 points/bank). Its ruggedized anodized aluminum housing (–40°C to +70°C) achieves ​NEMA 4X/IP67 protection​ with corrosion-resistant hardware, ideal for washdown or chemical environments. Integrated ​per-channel LED diagnostics, electronic keying, and ​Studio 5000®-configurable filters​ (0–16ms) ensure precise event capture and noise immunity for critical processes.

​2.Critical Technical Specifications​

​Precision performance metrics:

• ​Input Type: 32× 24V DC (sinking/sourcing selectable per bank)
• ​Voltage Range: 10–31V DC (ON-state min: 15V DC @ 8mA)
• ​Isolation: 300V AC bank-to-bank / ​1,500V AC field-to-backplane​
• ​Response Time: ≤1ms OFF→ON / ≤5ms ON→OFF (software-adjustable)
• ​Surge Protection: ±30V continuous (EN 61000-4-5)
• ​Power Consumption: 120mA @ 5.1V DC backplane
• ​Termination: 16-point ​1756-TBCH/B screw terminal​ (14–22 AWG)
• ​Environmental: 15g shock / 5g vibration (IEC 60068-2)
• ​Certifications: SIL 2 (IEC 61508), ATEX II 3G Ex ec IIC T80°C Gc

​3.Targeted Applications​

​Mission-critical monitoring systems:

• ​Automotive Assembly: Robotic weld cell E-stop chains meeting ISO 13849 PL e
• ​Pharmaceutical Packaging: GMP-compliant vial counter inputs (21 CFR Part 11)
• ​Material Handling: High-speed conveyor jam detection with <5ms response
• ​Oil & Gas: SIL 2-rated wellhead valve monitoring (API 14F Zone 2)
• ​Food Processing: Washdown-ready proximity sensors (IP69K terminals)
• ​Energy: Turbine lube oil pressure switch networks
• ​Water Treatment: Flood-resistant pump station control cabinets

​4.Competitive Advantages​

​Operational differentiators:

• ​PointFault™ Technology: Detects open wires/shorts ​​<2ms per channel​
• ​Safety Integration: SIL 2 compliance without external relays
• ​High-Density Design: 32 inputs in single slot (50% denser​ than competitors)
• ​Hot-Swap Terminals: Replace wiring in ≤3 minutes without powering down
• ​Wide Temperature Operation: –40°C cold start for Arctic mining/offshore
• ​Data Integrity: ​1μs timestamp resolution​ for event sequencing
• ​Lifecycle Economy: 10-year service life & FRAM backup memory
• ​Studio 5000® Efficiency: Auto-configuration via Add-On Profiles

​5.Functional Capabilities​

​Advanced diagnostics and control:

• ​Adaptive Filtering: Software-configurable noise rejection (0.1–16ms)
• ​Latch-On-Transient: Captures pulse events as short as ​100μs​
• ​Redundant Mirroring: Syncs data to backup PLCs via ​Produced/Consumed tags​
• ​Thermal Monitoring: Auto-derates at >60°C with predictive alerts
• ​Force/Lock Functions: Maintenance overrides directly from HMI
• ​NAMUR Compatibility: Directly interfaces with ​Ex ia/ib sensors​
• ​Load Diagnostics: Real-time current monitoring (±5mA accuracy)
• ​Firmware Security: Signed updates prevent tampering

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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