Product Details
Product Description
The Allen-Bradley 1756-IB16ISOE is a ControlLogix digital input module designed for sequence-of-events (SOE) applications. It provides 16 individually isolated DC inputs, enabling precise event capture with high-speed response. The module supports both sink and source configurations, making it versatile for industrial monitoring and control systems.
Technical Specifications
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Manufacturer: Allen-Bradley
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Product Line: ControlLogix
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Part Number: 1756-IB16ISOE
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Category: PLCs
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Weight: 0.44 lbs (0.20 kg)
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Module Type: Digital DC Isolated Input (SOE)
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Inputs: 16 isolated channels
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Input Voltage Range: 24–48 V DC (sink/source)
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Operating Voltage Range: 10–55 V DC
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Input Delay Time: 50 µs + selectable filter time
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Minimum Operating Current: 5.5 mA at 55 V DC
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Maximum Operating Current: 2 mA at 10 V DC
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Off-State Current (Max): 1.5 mA
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Power Dissipation: 5.5 W at 60 °C
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Backplane Current Draw:
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275 mA @ 5 V DC
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2 mA @ 24 V DC
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Terminal Blocks: 1756-TBCH, 1756-TBS6H (removable)
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Isolation Voltage: 75 V continuous; type-tested at 1200 V AC for 2 s
Features
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High-speed event capture with 50 µs response
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Individually isolated inputs for improved reliability
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Supports both sink and source wiring configurations
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Designed for sequence-of-events monitoring in critical applications
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Compatible with removable terminal blocks for simplified wiring
Application Scenarios
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Power System Monitoring: Event capture for fault detection and logging
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Industrial Automation: Precise input tracking for safety and control systems
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Critical Infrastructure: Sequence-of-events recording in energy and utility networks
FAQ
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Q: How many inputs does the 1756-IB16ISOE provide? A: Sixteen individually isolated DC inputs.
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Q: What is the input delay time? A: 50 microseconds plus selectable filter time.
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Q: Which terminal blocks are compatible? A: 1756-TBCH and 1756-TBS6H.
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Q: What isolation voltage is supported? A: 75 V continuous, tested at 1200 V AC for 2 seconds.
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Q: How does this compare to the 1756-IB16? A: The 1756-IB16ISOE provides isolated inputs and SOE functionality, while the 1756-IB16 is a standard DC input module without event sequencing.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) serve as critical quality assurance gateways in complex industrial control systems. Both procedures verify that programmable logic controllers (PLCs), distributed control systems (DCS), and associated field devices meet strict functional specifications. However, executing these tests effectively requires clear delineation between off-site staging and final field commissioning.
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
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Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
Safety relays form the bedrock of functional safety in modern factory automation, preventing catastrophic equipment failure and protecting plant personnel. While standard electromechanical relays handle basic load switching, they lack the redundant diagnostics required for high-risk industrial environments. Modern industrial automation platforms—including programmable logic controllers (PLCs) and distributed control systems (DCS)—rely on specialized safety relays to monitor field devices and isolate hazards instantly.