Allen-Bradley 1756-IB16 16-Point DC Input Module – ControlLogix Series
Imagine a high-speed automotive assembly line suddenly losing visibility into 16 critical sensor signals — conveyor positions, safety interlocks, and proximity switches all go dark simultaneously. Without a reliable digital input module, the entire PLC system is blind to the physical world, forcing an unplanned shutdown that costs thousands of dollars per minute. The Allen-Bradley 1756-IB16 is the precision interface that prevents exactly this scenario, converting real-world 10–31V DC field signals into the digital data your ControlLogix controller depends on for every scan cycle.
Within the ControlLogix 1756 platform — Rockwell Automation’s flagship modular control architecture — the 1756-IB16 occupies a foundational role as a 16-point sourcing DC input module. It is one of the most widely deployed digital input cards in the global industrial automation market, trusted across automotive, oil & gas, food & beverage, and discrete manufacturing sectors. Its combination of high channel density, broad voltage compatibility, and seamless integration with Studio 5000 Logix Designer makes it the default choice for engineers specifying ControlLogix I/O.
Technical Specifications
- Catalog Number: 1756-IB16
- Platform: ControlLogix 1756
- Input Points: 16 (sourcing / current sinking)
- Input Voltage Range: 10–31V DC
- Input Current: 2–8 mA per point (nominal)
- ON-State Voltage Min: 10V DC
- OFF-State Voltage Max: 5V DC
- Backplane Current (5V): 75 mA
- Backplane Current (24V): 2 mA
- Operating Temperature: 0–60°C (32–140°F)
- Storage Temperature: -40–85°C
- Isolation: 100V DC continuous, channel-to-backplane
- Wiring: Removable terminal block (RTB), 20-point
- Indicators: Per-point LED status
- Module Weight: Approx. 1200 g (with RTB)
- Standards: UL, CE, C-Tick
Key Features & Benefits
- 16 Independent Input Channels: High channel density reduces chassis slot consumption and lowers per-point hardware cost in large I/O systems.
- Wide DC Voltage Range (10–31V): Compatible with standard 24V DC field devices including proximity sensors, limit switches, and push buttons without additional signal conditioning.
- Per-Point LED Diagnostics: Instant visual confirmation of each input state accelerates troubleshooting and reduces mean time to repair (MTTR).
- Removable Terminal Block (RTB): Pre-wired RTBs can be swapped during module replacement without disturbing field wiring, minimizing downtime.
- Seamless Studio 5000 Integration: Auto-configuration via RSLogix 5000 / Studio 5000 Logix Designer with full tag-based addressing and online diagnostics.
- ControlLogix Backplane Compatibility: Installs in any 1756 chassis slot; supports both local and remote (ControlNet/EtherNet/IP) rack configurations.
- Proven Field Reliability: Designed to IEC 61131-2 input specifications with robust noise immunity for industrial environments.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, transfer press interlocks, AGV position sensing
- Oil & Gas: Wellhead control panels, pipeline valve position feedback, ESD system inputs
- Food & Beverage: Filling machine sensors, conveyor jam detection, CIP cycle monitoring
- Packaging: Case erector limit switches, labeler registration sensors, palletizer safety gates
- Water & Wastewater: Pump run/fail status, level switch inputs, valve open/closed confirmation
- Discrete Manufacturing: Machine tool door interlocks, part-present sensors, cycle start/stop buttons
System Integration & Compatible Parts
The 1756-IB16 is designed to operate within the broader ControlLogix ecosystem. Common companion modules and accessories include:
- Controllers: 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
- Chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
- Communication Modules: 1756-EN2T, 1756-EN2TR, 1756-CN2, 1756-DNB
- Wiring Accessories: 1756-TBCH (cage clamp RTB), 1756-TBS6H (spring clamp RTB)
- Output Counterparts: 1756-OB16E, 1756-OB16I, 1756-OA16
Our Quality Assurance Process
Every 1756-IB16 unit sourced and supplied by Konmask.com undergoes a structured verification process before shipment:
- Authenticity Verification: Visual inspection of Rockwell Automation labeling, date codes, and holographic seals to screen for counterfeit parts.
- Functional Testing: Where applicable, modules are bench-tested for backplane communication and per-point input response.
- Condition Grading: Units are clearly graded as New (factory-sealed), Refurbished (tested & reconditioned), or Used (tested, cosmetic wear). Grade is disclosed on every quotation.
- Secure Packaging: ESD-safe anti-static bags, foam cushioning, and double-wall cartons protect modules during international transit.
- Documentation: Test reports and certificates of conformance available upon request for critical applications.
How to Order
- Submit an inquiry via the Contact Us form or email support@konmask.com with your required quantity and delivery timeline.
- Our technical team will confirm availability, condition grade, lead time, and provide a formal quotation within 24 business hours.
- Upon PO confirmation, we arrange secure packaging and dispatch with full tracking information.
- Post-delivery support is available for installation queries and compatibility verification.
Minimum order quantity: 1 unit. Volume pricing available for orders of 5+ units.
Why Choose Konmask.com?
- ✅ Specialist Focus: Exclusively industrial automation components — PLC, DCS, drives, and HMI hardware from leading global brands.
- ✅ Global Supply Network: Access to both new and hard-to-find discontinued Rockwell Automation parts through verified supplier channels.
- ✅ Technical Expertise: Our team includes experienced control system engineers who can advise on compatibility, firmware, and system integration.
- ✅ Transparent Grading: No hidden conditions — every unit is clearly described and graded before quotation.
- ✅ Fast Response: Quotations within 24 hours; expedited shipping options available for urgent plant breakdowns.
- ✅ Export Compliance: Experienced in international trade documentation for Asia-Pacific, Middle East, and European customers.
Frequently Asked Questions
Q: Is the 1756-IB16 compatible with all ControlLogix chassis?
A: Yes. The 1756-IB16 installs in any 1756-series chassis slot (4, 7, 10, 13, or 17 slots) and is compatible with all ControlLogix and GuardLogix controllers running RSLogix 5000 v13 or later / Studio 5000 Logix Designer.
Q: What is the difference between 1756-IB16 and 1756-IB16D?
A: The 1756-IB16D adds diagnostic capabilities including open-wire detection and field power loss detection per channel. The standard 1756-IB16 provides basic 16-point DC input functionality without per-channel diagnostics.
Q: Can I use the 1756-IB16 in a remote I/O rack over EtherNet/IP?
A: Yes. When installed in a remote chassis with a 1756-EN2T or 1756-EN2TR adapter, the module operates as a remote I/O rack accessible over EtherNet/IP from any ControlLogix controller.
Q: Do you supply new or used units?
A: We supply both. All units are clearly graded (New / Refurbished / Used-Tested) and the grade is stated on every quotation. Contact us to specify your preference.
Q: What is the lead time for the 1756-IB16?
A: Lead time depends on current stock levels. In-stock units typically ship within 1–3 business days. For sourced units, lead time is typically 5–15 business days. Contact us for real-time availability.
Q: Is a warranty provided?
A: Yes. All units carry a minimum 90-day warranty against defects in materials and workmanship. Extended warranty options are available — please inquire at the time of quotation.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
{
“@context”: “https://schema.org”,
“@graph”: [
{
“@type”: “Product”,
“name”: “Allen-Bradley 1756-IB16 16-Point DC Input Module – ControlLogix”,
“description”: “Allen-Bradley 1756-IB16 ControlLogix 16-Point 10-31V DC Sourcing Input Module. 16 independent channels, removable terminal block, per-point LED diagnostics. Compatible with all 1756-series chassis.”,
“sku”: “1756-IB16”,
“mpn”: “1756-IB16”,
“brand”: {
“@type”: “Brand”,
“name”: “Allen-Bradley”
},
“manufacturer”: {
“@type”: “Organization”,
“name”: “Rockwell Automation”
},
“category”: “PLC Digital Input Module”,
“url”: “https://konmask.com/products/allen-bradley-1756-ib16-dc-input-module-controllogix”,
“offers”: {
“@type”: “Offer”,
“url”: “https://konmask.com/products/allen-bradley-1756-ib16-dc-input-module-controllogix”,
“priceCurrency”: “USD”,
“availability”: “https://schema.org/InStock”,
“seller”: {
“@type”: “Organization”,
“name”: “Konmask.com”
}
}
},
{
“@type”: “FAQPage”,
“mainEntity”: [
{
“@type”: “Question”,
“name”: “Is the 1756-IB16 compatible with all ControlLogix chassis?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. The 1756-IB16 installs in any 1756-series chassis slot (4, 7, 10, 13, or 17 slots) and is compatible with all ControlLogix and GuardLogix controllers running RSLogix 5000 v13 or later / Studio 5000 Logix Designer.”
}
},
{
“@type”: “Question”,
“name”: “What is the difference between 1756-IB16 and 1756-IB16D?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The 1756-IB16D adds diagnostic capabilities including open-wire detection and field power loss detection per channel. The standard 1756-IB16 provides basic 16-point DC input functionality without per-channel diagnostics.”
}
},
{
“@type”: “Question”,
“name”: “Can I use the 1756-IB16 in a remote I/O rack over EtherNet/IP?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. When installed in a remote chassis with a 1756-EN2T or 1756-EN2TR adapter, the module operates as a remote I/O rack accessible over EtherNet/IP from any ControlLogix controller.”
}
},
{
“@type”: “Question”,
“name”: “Do you supply new or used units?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “We supply both. All units are clearly graded (New / Refurbished / Used-Tested) and the grade is stated on every quotation.”
}
},
{
“@type”: “Question”,
“name”: “What is the lead time for the 1756-IB16?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “In-stock units typically ship within 1-3 business days. For sourced units, lead time is typically 5-15 business days. Contact us for real-time availability.”
}
},
{
“@type”: “Question”,
“name”: “Is a warranty provided?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. All units carry a minimum 90-day warranty against defects in materials and workmanship. Extended warranty options are available upon request.”
}
}
]
}
]
}



