1756-IB16I | Allen-Bradley ControlLogix Isolated Input Module 10-30VDC 16-P 36-Pin
1756-IB16I | Allen-Bradley ControlLogix Isolated Input Module 10-30VDC 16-P 36-Pin
1756-IB16I | Allen-Bradley ControlLogix Isolated Input Module 10-30VDC 16-P 36-Pin
    1756-IB16I | Allen-Bradley ControlLogix Isolated Input Module 10-30VDC 16-P 36-Pin
1756-IB16I | Allen-Bradley ControlLogix Isolated Input Module 10-30VDC 16-P 36-Pin

1756-IB16I | Allen-Bradley ControlLogix Isolated Input Module 10-30VDC 16-P 36-Pin

Part #: 1756-IB16I Manufactured by: Allen-Bradley
Regular price
$299.00
Sale price
$299.00
Regular price
2 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
Allen Bradley ControlLogix Digital DC Isolated Input Module with 16 Individually Isolated Inputs Inputs
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Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 1756-IB16I

Description / Specifications

Description 

The Allen-Bradley 1756-IB16I is a 16-channel, individually-isolated DC digital input module designed for ControlLogix® systems. It supports 10…30 VDC input signals and provides per-point isolation to enhance noise immunity and increase system reliability. With built-in status indicators and robust environmental ratings, this module is suitable for high-performance industrial control applications.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Digital Input Module
Part Number 1756-IB16I
Subcategory ControlLogix®
Number of Inputs 16
Input Voltage Range 10…30 VDC
Input Type 12/24 VDC Sinking/Sourcing
Isolation 250 V continuous, per-point individually isolated
Response Time 1–18 ms
Display Input, communication status, module health LEDs
Removable Terminal Block 1756-TBCH or 1756-TBS6H
Mounting Type ControlLogix chassis
Operating Temperature 0…60°C (32…140°F)
Storage Temperature –40…85°C
Relative Humidity 5–95% non-condensing
Vibration 2 m/s² @ 500 Hz
Shock IEC 60068-2-27 compliant
Standards CE, CSA, UL, KC, Marine, RCM, NRTL
Enclosure Open-style

 

 

Information About 1756-IB16I

The 1756-IB16I is a ControlLogix® digital input module engineered to deliver individually isolated DC inputs for demanding automation environments. Each of its 16 input channels is isolated, offering increased protection, diagnostic accuracy, and fault containment. The module supports both 12 VDC and 24 VDC sinking/sourcing devices within a 10…30 VDC operational range. It integrates seamlessly into ControlLogix chassis-based systems and provides comprehensive front-panel diagnostics for communication, module health, and input status. Its rugged construction, wide temperature operating range, and compliance with multiple industrial standards make it suitable for complex and safety-critical control architectures.

Key Features:

  • Individually isolated channels: Each input is electrically isolated to improve noise immunity and reduce cross-channel interference.
  • Wide input signal range: Accepts 10…30 VDC signals for flexible device compatibility.
  • Per-channel diagnostics: Input status, communication health, and module integrity indicators available on the front panel.
  • High-reliability design: Built to withstand harsh industrial conditions with wide environmental ratings.
  • Direct chassis integration: Mounts into any slot of a ControlLogix chassis for simplified installation.
  • Fast and configurable response times: Supports selectable delays from 1 to 18 ms.
  • Supports both sinking and sourcing inputs: Enhances system design flexibility.
  • Compatible with multiple RTBs: Works with 1756-TBCH and 1756-TBS6H terminal blocks.
  • Meets global industrial compliance standards: Certified for CE, UL, CSA, KC, Marine, and more.

The 1756-IB16I delivers the reliability and precision required for advanced ControlLogix automation applications.

Frequently Asked Questions about 1756-IB16I
Question: What is the primary function of the 1756-IB16I module?
Date Update:05/06/2025
Answer:

The Allen-Bradley 1756-IB16I is a discrete input module designed to receive digital signals from field devices such as sensors, pushbuttons, and switches. It is typically used to detect ON/OFF states and transmit them to a ControlLogix controller for processing. Each of its sixteen channels can handle individual inputs independently. The module is ideal for monitoring binary signals in automation systems where isolation and high reliability are required.

Question: What is the input voltage range supported by the 1756-IB16I?
Date Update:05/06/2025
Answer:

The 1756-IB16I supports an input voltage range from 10 to 30 volts DC. Its nominal operating voltage is 24V DC, which aligns with most standard industrial control voltages. The wide range allows it to accommodate varying levels of field voltage. This flexibility makes the module suitable for integration into different control panels and machine systems.

Question: What are the required removable terminal blocks (RTBs) for this module?
Date Update:05/06/2025
Answer:

The 1756-IB16I is compatible with the 1756-TBCH and 1756-TBS6H removable terminal blocks (RTBs). These RTBs allow easy wiring and module replacement without disturbing field wiring. They are designed to support rapid installation and maintenance in industrial environments. The use of RTBs increases system flexibility and reduces downtime during servicing or expansion.

Question: What is the maximum ON-state and OFF-state input current of the module?
Date Update:05/06/2025
Answer:

The maximum ON-state input current is 10 mA at 30V DC, while the minimum required ON-state current is 2 mA at 10V DC. During the OFF-state, the input current must not exceed 1.5 mA to reliably register a logical '0'. These thresholds ensure accurate recognition of signal states across various wiring conditions. Maintaining proper signal levels is critical to avoid false readings.

Question: Is the 1756-IB16I module still being manufactured by Rockwell Automation?
Date Update:05/06/2025
Answer:

Yes, the 1756-IB16I remains an active product in the Allen-Bradley ControlLogix family. It continues to be widely used in industrial automation projects that require discrete DC inputs. As of now, it is supported and distributed through Rockwell Automation’s standard supply chain. Users can still source new units and technical support for this model.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1756-IB16I is a 16-channel, individually-isolated DC digital input module designed for ControlLogix® systems. It supports 10…30 VDC input signals and provides per-point isolation to enhance noise immunity and increase system reliability. With built-in status indicators and robust environmental ratings, this module is suitable for high-performance industrial control applications.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Digital Input Module
Part Number 1756-IB16I
Subcategory ControlLogix®
Number of Inputs 16
Input Voltage Range 10…30 VDC
Input Type 12/24 VDC Sinking/Sourcing
Isolation 250 V continuous, per-point individually isolated
Response Time 1–18 ms
Display Input, communication status, module health LEDs
Removable Terminal Block 1756-TBCH or 1756-TBS6H
Mounting Type ControlLogix chassis
Operating Temperature 0…60°C (32…140°F)
Storage Temperature –40…85°C
Relative Humidity 5–95% non-condensing
Vibration 2 m/s² @ 500 Hz
Shock IEC 60068-2-27 compliant
Standards CE, CSA, UL, KC, Marine, RCM, NRTL
Enclosure Open-style

 

 

Information About 1756-IB16I

The 1756-IB16I is a ControlLogix® digital input module engineered to deliver individually isolated DC inputs for demanding automation environments. Each of its 16 input channels is isolated, offering increased protection, diagnostic accuracy, and fault containment. The module supports both 12 VDC and 24 VDC sinking/sourcing devices within a 10…30 VDC operational range. It integrates seamlessly into ControlLogix chassis-based systems and provides comprehensive front-panel diagnostics for communication, module health, and input status. Its rugged construction, wide temperature operating range, and compliance with multiple industrial standards make it suitable for complex and safety-critical control architectures.

Key Features:

  • Individually isolated channels: Each input is electrically isolated to improve noise immunity and reduce cross-channel interference.
  • Wide input signal range: Accepts 10…30 VDC signals for flexible device compatibility.
  • Per-channel diagnostics: Input status, communication health, and module integrity indicators available on the front panel.
  • High-reliability design: Built to withstand harsh industrial conditions with wide environmental ratings.
  • Direct chassis integration: Mounts into any slot of a ControlLogix chassis for simplified installation.
  • Fast and configurable response times: Supports selectable delays from 1 to 18 ms.
  • Supports both sinking and sourcing inputs: Enhances system design flexibility.
  • Compatible with multiple RTBs: Works with 1756-TBCH and 1756-TBS6H terminal blocks.
  • Meets global industrial compliance standards: Certified for CE, UL, CSA, KC, Marine, and more.

The 1756-IB16I delivers the reliability and precision required for advanced ControlLogix automation applications.

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