Allen-Bradley 1756-IB16I DC Input Module

Series#: AllenBradley

Product Details

1756-IB16I – Allen-Bradley ControlLogix Sourcing DC Input Module with 16 Isolated Channels.
16 individually isolated 24V DC sinking inputs for high noise immunity and per-channel fault protection.
Designed for demanding industrial environments with robust isolation (250V continuous, 850V peak).
Hot-swappable under power without disrupting adjacent modules in the ControlLogix chassis.
Supports software-configurable input filters (0.5–32 ms) to debounce signals and reduce false trips.
Direct compatibility with 1756 backplane and RSLogix 5000/Studio 5000 for seamless integration.
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The Allen-Bradley 1756-IB16I is a high-performance 16-point isolated sourcing DC input module engineered for the ControlLogix platform. It provides galvanic isolation between each input channel and the backplane, ensuring superior protection against ground loops, electrical noise, and transient surges in harsh automation cells. This module is ideal for applications requiring per-channel isolation, such as motor control centers, substation monitoring, or distributed I/O in process plants. Each input accepts 24V DC signals (sourcing) with a nominal 15 mA draw, and features software-programmable input filters to accommodate various sensor types. The 1756-IB16I supports hot-swapping in a live chassis, reducing downtime during maintenance. It is fully compatible with all ControlLogix controllers (L6x, L7x, L8x) and can be configured via RSLogix 5000 or Studio 5000 software. With a wide operating temperature range of 0–60°C and a rugged design, this module delivers reliable performance in continuous-duty applications.

Parameter	Specification
Model	1756-IB16I
Module Type	Isolated DC Sourcing Input Module
Number of Inputs	16 points (individually isolated)
Input Voltage Rating	24V DC nominal (sourcing type)
Input Current per Point	15 mA at 24V DC
Isolation Voltage (Channel-to-Backplane)	250V continuous, 850V peak (per UL 508)
Input Filter (Software Selectable)	0.5 ms, 1 ms, 2 ms, 4 ms, 8 ms, 16 ms, 32 ms
Input Delay (Off-to-On)	0.5 ms (min filter) to 32 ms (max filter)
Input Delay (On-to-Off)	0.5 ms (min filter) to 32 ms (max filter)
Backplane Current (5V DC)	150 mA (typical)
Backplane Current (24V DC)	None (powered via backplane only)
Power Dissipation	3.0 W (typical), 4.5 W (max)
Thermal Dissipation	10.2 BTU/hr (typical)
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Vibration Resistance	2 g Standard Models 10–500 Hz (per IEC 60068-2-6)
Shock Resistance	30 g (11 ms half-sine, per IEC 60068-2-27)
Enclosure Type	Open-style, suitable for panel mount
Wiring Style	Removable terminal block (1756-TBCH or 1756-TBS6H)
LED Indicators	Green (Input ON) per channel; Red (Diagnostic Fault)
Compatible Controllers	ControlLogix 5560, 5570, 5580 series (L6x, L7x, L8x)
Certifications	UL 508, CSA C22.2 No. 142, CE, ATEX (Zone 2), IECEx
Weight	Approx. 0.32 kg (0.71 lb)
Dimensions (H x W x D)	140 mm x 35 mm x 130 mm (5.51 in x 1.38 in x 5.12 in)