Allen-Bradley 1756-IB16I ControlLogix Isolated Input Module

Product Overview

The Allen-Bradley 1756-IB16I is a digital DC input module for the ControlLogix platform. It features 16 individually isolated inputs. This module operates on a 10-30 VDC voltage range. It provides reliable signal detection for various industrial sensors. The module uses a 36-pin removable terminal block. It is ideal for applications requiring electrical isolation between channels.

Application Scenarios

This module works well in discrete manufacturing environments. Use it for monitoring limit switches and push buttons. It is suitable for detecting proximity sensor signals. The isolated inputs prevent ground loop issues. This design makes it perfect for noisy industrial settings. It integrates easily into existing ControlLogix systems.

Technical Specifications

The 1756-IB16I has a nominal input voltage of 24 VDC. The input voltage range is 10-30 VDC. The minimum ON-state current is 2 mA at 10V. The maximum ON-state current is 10 mA at 30V. The cyclic update time is adjustable from 200 µs to 750 ms. The signal delay for ON transition is 1 ms maximum plus filter time. The OFF transition delay is 4 ms maximum plus filter time. The module draws 100 mA from the 5.1VDC backplane. It draws 3 mA from the 24VDC backplane. Total backplane power is 0.58 W. Maximum power dissipation is 5 Watts at 60 degrees Celsius. Thermal dissipation is 17.05 BTU/hour.

Installation & Maintenance Guide

Install the module into any ControlLogix chassis slot. Use a 1756-TBNH or 1756-TBSH removable terminal block. Ensure backplane power is off during installation. Wire inputs according to your sensor type. The module supports sink or source wiring. Set filter times using the software configuration. Perform regular visual inspections for damage. Keep the module free from dust and debris.

Packing List

The package includes one 1756-IB16I module. It does not include the terminal block. Order the terminal block separately. Use part numbers 1756-TBNH or 1756-TBSH. The module ships in anti-static packaging. We ship via Fedex, UPS, or DHL.