Allen-Bradley 1756-IB16ISOE DC Input Module

Series#: AllenBradley

Product Details

1756-IB16ISOE – Allen-Bradley ControlLogix Isolated 16-Point DC Input Module, engineered for high-integrity industrial automation.
Features 16 individually isolated 24V DC sinking inputs, providing robust noise immunity and ground loop prevention in critical control systems.
Supports high-speed input sensing with configurable filtering, ideal for proximity sensors, limit switches, and discrete signal monitoring.
Backward compatible with all ControlLogix chassis (1756-A4/A7/A10/A13/A17) and 1756 backplanes, ensuring seamless integration.
Industry-leading reliability with extended temperature range (-20°C to +60°C) and UL, CE, ATEX, and CSA certifications for harsh environments.
Includes removable terminal block (RTB) for quick field wiring and hot-swappable module replacement without system downtime.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The 1756-IB16ISOE is a premium isolated DC input module from the Allen-Bradley ControlLogix family, designed to deliver superior electrical isolation and signal integrity in demanding industrial settings. Each of the 16 input channels is optically isolated from the backplane and from each other, preventing ground loops and cross-talk even in high-interference environments like motor control centers or welding cells. This module is a critical component for safety-instrumented systems (SIS) and high-availability process control where signal accuracy is non-negotiable. The 1756-IB16ISOE supports 24V DC sinking inputs with a wide input voltage range (10-31.2V DC), configurable input filters (0.5 ms to 25 ms), and an input current of 8 mA per point typical. Rated for Class I, Division 2 hazardous locations, it integrates directly into any 1756 chassis and communicates via the ControlLogix backplane at 5V DC (1.2A max). The module’s LED diagnostics provide per-point status and module health, while the included 1756-TBCH or 1756-TBS6H terminal block ensures secure wiring. For applications requiring galvanic isolation between inputs and the control system, the 1756-IB16ISOE is the definitive choice, offering 1500V DC isolation per channel and a typical response time of < 1 ms. Backed by Rockwell Automation’s global support network, this module is a workhorse for discrete manufacturing, oil & gas, and water treatment facilities.

Parameter	Specification
Manufacturer	Allen-Bradley (Rockwell Automation)
Product Family	ControlLogix
Catalog Number	1756-IB16ISOE
Module Type	Isolated DC Input Module
Number of Inputs	16 (individually isolated)
Input Voltage Range	10-31.2V DC (nominal 24V DC)
Input Current (per point)	8 mA at 24V DC (typical)
Isolation Voltage	1500V DC per channel (channel-to-channel and channel-to-backplane)
Input Filter (software configurable)	0.5 ms, 1 ms, 2 ms, 5 ms, 10 ms, 25 ms
Response Time (OFF to ON)	< 1 ms (with 1 ms filter)
Response Time (ON to OFF)	< 1 ms (with 1 ms filter)
Backplane Current (5V DC)	1.2 A maximum
Power Dissipation	6.0 W (typical)
Operating Temperature	-20°C to +60°C (-4°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	15 g (11 ms half-sine, per IEC 60068-2-27)
LED Indicators	Green per point (ON state), Red module fault
Terminal Block	Removable with 1756-TBCH (screw-type) or 1756-TBS6H (spring-clamp) – included
Wiring Category	Class I, Division 2, Groups A, B, C, D (hazardous location)
Agency Certifications	UL 508, CSA C22.2 No. 142, CE (EN 61131-2), ATEX (Zone 2), IECEx
Weight	0.45 kg (1.0 lb)
Dimensions (H x W x D)	140 x 35 x 120 mm (5.51 x 1.38 x 4.72 in)
Compatible Chassis	1756-A4, A7, A10, A13, A17, A17K, A17R
Shipping Method	Same-day dispatch via DHL/FedEx/UPS (global)