Allen-Bradley 1756-IV32 Digital Input Module

Series#: AllenBradley

Product Details

ALLEN-BRADLEY 1756-IV32 32-point 24V DC Sinking Input Module for ControlLogix systems.
High-density design reduces rack space while providing reliable discrete input monitoring.
Built-in diagnostics for open-wire detection and real-time status feedback via the backplane.
Electrically isolated per channel group to enhance noise immunity in harsh industrial environments.
Hot-swappable under powered backplane without disrupting adjacent modules or system operation.
Compatible with all ControlLogix chassis and standard 1756 series power supplies.
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The ALLEN-BRADLEY 1756-IV32 is a robust and compact 32-point sinking DC input module engineered for the ControlLogix platform. It accepts 24V DC signals from field devices such as proximity sensors, limit switches, and pushbuttons, converting them into digital logic states for the controller. Designed for high-density applications, the 1756-IV32 offers exceptional noise immunity with channel-to-backplane isolation and supports open-wire detection for enhanced troubleshooting. Its hot-swappable capability allows for module replacement without system downtime, making it ideal for continuous process lines and discrete manufacturing environments. The module communicates seamlessly via the ControlLogix backplane, providing real-time input status to the processor for precise control.

Parameter	Specification
Product Series	ControlLogix 1756
Module Type	DC Input Module
Input Points	32 (sinking)
Input Voltage Rating	24V DC nominal (10-30V DC range)
Input Current (per point)	8 mA typical at 24V DC
Input On-State Voltage	≥ 10V DC
Input Off-State Voltage	≤ 5V DC
Input On-State Current	≥ 2 mA
Input Off-State Current	≤ 1.5 mA
Isolation Voltage	1500V AC between channel group and backplane
Isolation Grouping	8 points per group (4 groups)
Open-Wire Detection	Supported (software-configurable)
Backplane Current (5V DC)	150 mA
Backplane Current (24V DC)	0 mA (module powered via backplane only)
Power Dissipation	3.5 W maximum
Thermal Dissipation	11.9 BTU/hr
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
Shock Resistance	30 g
Wiring Style	Removable terminal block (1756-TBCH or 1756-TBS6H)
Module Dimensions (H x W x D)	144 mm x 35 mm x 105 mm (5.67 in x 1.38 in x 4.13 in)
Weight	0.22 kg (0.48 lb)
Certifications	UL, CE, CSA, ATEX (Zone 2), cULus
Warranty	1 year (standard)