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1756-OB32/A - 32-Point 24VDC Isolated Output - Industrial Rugged Hot-Swap Digital Module
| MOQ: | 1 |
| Price: | Negotiable |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
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| Attribute | Value |
|---|---|
| Operating Temperature | -25°C to 60°C |
| Communication Protocol | Ethernet/IP |
| Condition | New |
| Phase | Three-Phase |
| Copper Port Type | 8 FE type |
| Hardware Type | I/O Chassis |
| Input Current | 2A |
| Type | module |
The Allen-Bradley 1756-IB32/A ControlLogix ® 32-Point DC Input Module delivers high-density digital signal acquisition for industrial control systems. Designed for Rockwell's flagship platform, this module supports 32-channel 24V DC sinking/sourcing inputs grouped into four isolated banks (8 points each). Its ruggedized housing (-40°C to +70°C) features NEMA 4X/IP67 protection with removable terminal blocks (1756-TBCH). Integrated diagnostics include per-channel LED status, electronic keying, and ≤1ms timestamping for precise event sequencing. Studio 5000® enables millisecond-filter adjustments (0-16ms) and predictive maintenance alerts for mission-critical applications.
- Input Type: 32× sinking/sourcing (selectable per 8-point bank)
- Voltage Range: 10-31V DC (ON-state: 15V min @ 8mA)
- Isolation: 300V AC bank-to-bank / 1,500V AC field-to-backplane
- Response Time: ≤1ms OFF->ON / ≤5ms ON->OFF (software-adjustable)
- Power: 120mA @5.1V backplane; 25mA/point max
- Surge Immunity: ±30V continuous (EN 61000-4-5)
- Termination: 16-point 1756-TBCH screw terminal (14-22 AWG)
- Environmental: 5g vibration / 30g shock (IEC 60068-2)
- Certifications: UL 61010-1, ATEX II 3G, SIL 2 (IEC 61508)
- Automotive Assembly: Robotic weld cell limit switch monitoring (500+ points/line)
- Warehousing: High-speed parcel sorter photoelectric sensor networks
- Pharmaceutical: Vial counter inputs with 21 CFR Part 11 compliance
- Oil & Gas: Wellhead valve status in API 14F Zone 2 areas
- Food Processing: Conveyor jam detection (IP69K washdown terminals)
- Material Handling: Palletizer layer-completion sensing
- Power Plants: Turbine lube oil pressure switches (SIL 2-rated)
- Channel Density: 32 inputs in single-slot footprint (industry-leading space efficiency)
- PointFault ™ Technology: Detects open/short circuits in <2ms per channel
- Safety Integration: SIL 2 compliance for E-stop chains without relays
- Hot-Swap Terminal Blocks: Replace wiring without power-down (≤5 minutes)
- EMC Resilience: ±6kV surge protection without suppressors
- Lifecycle Cost: 100k+ mating cycles (3× standard modules)
- Data Richness: 1μs event logging for sequence-of-events root cause analysis
- Adaptive Filtering: 0.1-16ms noise rejection per bank
- Latch-on-Transient: Captures signals as brief as 100μs
- Thermal Derating: Auto-alerts at >60°C ambient
- Redundant Mirroring: Syncs data to backup controllers via produced tags
- Force/Lock Functions: Override inputs for maintenance via Studio 5000®
- Intrinsic Safety: Direct NAMUR sensor support (Ex ia/ib)
- Load Visualization: Real-time per-point state tags on HMIs
- Firmware Security: Signed updates prevent tampering
| Key Parameter | Description |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Series/Platform | ControlLogix® |
| Module Type | Digital Output (Sourcing) |
| Part Number | 1756-OB32A |
| Number of Channels | 32 |
| Output Type | Sourcing (Positive Voltage Switching) |
| Voltage Range | 10-60V DC |
| Max Current per Channel | 0.5A @ 30°C (derated linearly to 0.4A @ 60°C) |
| Total Module Current | 8A maximum (all channels combined) |
| Backplane Current (5V) | 70mA typical (1756-L1 controllers); 150mA max (1756-L7 controllers) |
| Isolation Voltage | 250V AC/DC (field-to-backplane); 50V AC/DC (channel-to-channel) |
| On-State Voltage Drop | ≤1.5V DC @ max load |
| Response Time (Off->On) | ≤1ms (resistive load) |
| Response Time (On->Off) | ≤1ms (resistive load) |
| Fault Detection | Overload, short-circuit, and open-wire diagnostics per channel |
| Status Indicators | Per-channel: Green (Output On), Red (Fault); Module: Green/Red (Status) |
| Connection Type | Removable 36-pin screw-clamp terminal block (Requires 1756-TBCH or equivalent) |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Certifications | CE, cULus Listed, ATEX/IECEx (Zone 2), IEC 61131-2 |
| Compatibility | ControlLogix 5570 & 5580 controllers; Studio 5000 Logix Designer v20+ |
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