Allen-Bradley 1756-IB16D DC Input Module

Series#: AllenBradley

Product Details

1756-IB16D – Allen-Bradley ControlLogix Digital Input Module with Direct Connect (DC) Sourcing Sensors.
16-point, 24V DC sinking input module featuring fast response times and high-density I/O for industrial automation.
Built-in diagnostic LEDs per channel for real-time status and fault detection.
Supports removable terminal blocks (RTB) for easy wiring and maintenance without disrupting field wiring.
Seamless integration with ControlLogix backplane for high-speed data exchange and redundancy.
Rugged industrial design rated for extended temperature and vibration environments.
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The Allen-Bradley 1756-IB16D is a high-performance 16-point DC input module designed for the ControlLogix platform, engineered to interface directly with 24V DC sourcing sensors (e.g., proximity switches, limit switches) in demanding industrial environments. This module provides reliable signal acquisition with electronic isolation per group, ensuring noise immunity and data integrity. With its compact form factor and hot-swappable capability, the 1756-IB16D simplifies system upgrades and reduces downtime. The module’s direct-connect design eliminates the need for external interposing relays, optimizing panel space and wiring costs. Typical applications include discrete manufacturing, material handling, and process control systems requiring high-density digital input monitoring.

Parameter	Specification
Product Series	ControlLogix 1756
Model	1756-IB16D
Type	DC Input Module, Sinking (Sourcing Sensor Compatible)
Number of Inputs	16
Input Voltage Rating	24V DC nominal (18–30V DC operating range)
Input Current per Point	8 mA typical at 24V DC
Input On-State Voltage	≥ 10V DC (sourcing sensor output active)
Input Off-State Voltage	≤ 5V DC (sensor output inactive)
Input On-State Current	≥ 2 mA
Input Off-State Current	≤ 1.5 mA
Input Filter Time	Programmable: 0.5 ms, 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms (per module)
Isolation Voltage	1500V AC RMS between field and backplane (per group of 8 inputs)
Backplane Current Draw	120 mA at 5.1V DC; 3 mA at 24V DC
Power Dissipation	2.8 W typical
Thermal Dissipation	9.5 BTU/hr typical
Indicators	16 green/red LEDs per channel for input status and diagnostics
Terminal Block Type	Removable Terminal Block (RTB) with 20-pin, spring-clamp or screw-type
Wiring Method	3-wire (sourcing sensor) or 2-wire (sensor with common supply)
Module Location	Any slot in ControlLogix chassis (1756-A4, A7, A10, A13, A17)
Hot Swappable	Yes, with system power on
Environmental 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 at 10–500 Hz (IEC 60068-2-6)
Shock Resistance	30 g peak (IEC 60068-2-27)
Certifications	UL 508, CSA C22.2 No. 142, CE, ATEX (Zone 2), IECEx, cULus
Weight	Approximately 0.25 kg (0.55 lb)
Dimensions (H x W x D)	144 mm x 51 mm x 108 mm (5.67 in x 2.01 in x 4.25 in)