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2.5-Year Warranty · Free Shipping · Same-Day Shipping 980-202-0882 · Charlotte, NC

Allen-Bradley 1756-IB16S ControlLogix Input Module 16 Point Safety Input Module

Manufacturer: Allen-Bradley
MPN: 1756-IB16S
UPC/GTIN: 191326353540

$1,295.00

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The 1756-IB16S is an Allen-Bradley ControlLogix GuardLogix safety-rated 16-channel DC sinking input module rated for 10…32V DC with SIL CL 3 / PLe / Cat. 4 safety integrity. Features 8 test outputs at 0.2 A per point, 6 ms safety reaction time at 2 ms RPI, over-temperature detection, and 60V DC supply overvoltage protection. Requires Series C chassis. Designed for the ControlLogix 1756 safety platform.

Channels 16 sinking inputs (1 group of 16)
Voltage 10…32V DC sinking
Safety Rating SIL CL 3 / PLe / Cat. 4
Safety Reaction Time 6 ms @ RPI of 2 ms
Slot Width 1 (Series C chassis only)
RTB 1756-TBCHS or 1756-TBS6HS
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PLC Exchange is not an authorized distributor: Products ship in unopened, original manufacturer-marked packaging. See Original Packaging or Warranty for more information.

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Description

Allen-Bradley 1756-IB16S

The 1756-IB16S is an Allen-Bradley ControlLogix GuardLogix safety-rated 16-channel DC sinking input module rated for 10…32V DC with SIL CL 3 / PLe / Cat. 4 safety integrity. Features 8 test outputs at 0.2 A per point, 6 ms safety reaction time at 2 ms RPI, over-temperature detection, and 60V DC supply overvoltage protection. Requires Series C chassis. Designed for the ControlLogix 1756 safety platform.

Tech Data (1756-TD001)

Module Overview
Catalog Number 1756-IB16S
Module Type Safety DC 16-Point Sinking Input
Channels 16 (1 group of 16)
Input Type Sinking (Safety)
On-State Voltage 10…32V DC
Safety Integrity Level SIL CL 3 / PLe / Cat. 4
Slot Width 1 (Series C chassis only)
RTB 1756-TBCHS or 1756-TBS6HS
Indicators Module status, channel status LEDs
Electrical Specifications
On-State Current 2.4 mA @ 10V, 2.5 mA @ 24V, 2.8 mA @ 32V
Off-State Voltage 5V DC max
Off-State Current 1.5 mA max
Test Outputs 8, 0.2 A per point, 600 µs pulse max
Field Power 18…32V DC SELV/PELV, 1.8 A max
DC Supply Overvoltage Protection 60V
Reverse Voltage Protection Yes
Over-Temperature Detection Yes
Isolation 60V continuous, basic channels-to-backplane
Timing & Performance
Input Delay 6 ms @ RPI of 2 ms
Safety Reaction Time 6 ms @ RPI of 2 ms
Power & Thermal
Current Draw 280 mA @ 5.1V
Backplane Power 1.43 W
Power Dissipation 6 W
Thermal Dissipation 20.47 BTU/hr
Features & Diagnostics
Safety Rating SIL CL 3 / PLe / Cat. 4
Reverse Voltage Yes
Over-Temperature Detection Yes
Chassis Requirement Series C only
Slot Width 1
Source: All specifications verified against Rockwell Automation Publication 1756-TD002T-EN-E, February 2025.

PLC Exchange products ship in their unopened, manufacturer-marked Original Packaging. Because we are not an authorized distributor, we are not legally allowed to claim these items as “New”, “Factory Sealed”, or any other term that may imply such. We have over 10 years of experience working with trusted suppliers to make sure you receive the top-quality hardware you need. Items ship in their original packaging, with the same function and contents as OEM-supplied materials. PLC Exchange is an independent supplier of industrial automation products and is not affiliated with the brand manufacturer or any of its authorized distributors. All warranties are provided directly by PLC Exchange. Trademarks, logos, and brand names referenced are property of their respective owners and are used for descriptive identification only.

Technical Notes for 1756-IB16S

  • Mounts on standard 35mm DIN rail with direct side-bus connection to Compact 5000 I/O modules.
  • Program using Studio 5000 Logix Designer software (v30 or later recommended).
  • Firmware updates available through ControlFLASH or ControlFLASH Plus.
  • All 1756-IB16S units sold by PLC Exchange are tested and ship in original factory packaging.
  • For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.

Alternative Part Numbers & Names for 1756-IB16S

The 1756-IB16S by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:

  • 1756IB16S
  • Allen Bradley 1756-IB16S
  • Allen-Bradley 1756-IB16S
  • 1756 IB16S
  • 1756/IB16S
  • ControlLogix 1756-IB16S

All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.

Additional information

Weight 0.62 lbs
Dimensions 3.94 × 2.28 × 5.67 in
mpn

1756-IB16S

manufacturer

Allen-Bradley

condition

Original Packaging

warranty

2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery

upc

191326353540

Dimensions & Weight for 1756-IB16S

Shipping Dimensions
Weight0.62 lbs
Length3.94 in
Width2.28 in
Height5.67 in
Box Dimensions (L×W×H)3.94 × 2.28 × 5.67 in

Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.

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Frequently Asked Questions

What product family does the 1756-IB16S belong to?

The 1756-IB16S is part of the Allen-Bradley ControlLogix family of industrial automation products.

Where can I find the technical datasheet for the 1756-IB16S?

The official manufacturer datasheet is available for download on the 1756-IB16S product page at PLC Exchange. Look for the Tech Data PDF link in the product description.

Does the 1756-IB16S include a warranty?

Yes. Every 1756-IB16S sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/

What is the return policy for the 1756-IB16S?

PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/

When will my 1756-IB16S ship?

In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.

Who manufactures the 1756-IB16S?

The 1756-IB16S is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.

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