1756-IB32 Allen-Bradley ControlLogix 32-Point DC Input Module

Product Overview

The Allen-Bradley 1756-IB32 is a digital DC input module. It belongs to the ControlLogix series. This module provides 32 input channels. These channels split into 2 groups. Each group has 16 points. The module uses a 36-pin removable terminal block. It supports a 12 to 24 Volt DC sink voltage. The operating range is 10 to 31.2 Volts DC. This module draws 120 mA from the 5.1V backplane. It draws 2 mA from the 24V backplane. The maximum power dissipation is 6.2 Watts. This module fits one slot in a ControlLogix chassis.

Application Scenarios

This module works in many industrial settings. It monitors discrete sensors and switches. Use it for push buttons and limit switches. It works well for proximity sensor inputs. The module fits local or remote I/O racks. It integrates with the PlantPAx DCS. It is common in manufacturing and process control. The 1756-IB32 handles high-density signal monitoring. It reduces the number of required modules.

Technical Specifications

The 1756-IB32 has 32 digital inputs. The input voltage is 12-24 Volts DC sink. The operating voltage range is 10-31.2 Volts DC. The minimum operating current is 2 mA at 10V. The off-state maximum current is 1.5 mA. The off-state maximum voltage is 5 Volts. The hardware delay for off-to-on is 380 µs. The hardware delay for on-to-off is 420 µs. Users can add filter times. Filter options are 0, 1, or 2 ms for off-to-on. Filter options are 0, 1, 2, 9, or 18 ms for on-to-off. The maximum inrush current is 250 mA. The backplane current at 5.1 Volts is 100 mA. The thermal dissipation is 21.1 BTU/hr at 60°C.

Installation & Maintenance Guide

Mount the module into a ControlLogix chassis. Use a 1756-TBCH or 1756-TBS6H terminal block. The module supports electronic keying. This prevents incorrect module installation. Configure the module in your control software. Set the filter times as needed. Do not apply over-voltage to the inputs. Keep the chassis clean and dry. Check connections periodically for tightness. Replace the module only with the power off.

Packing List

1 x Allen-Bradley 1756-IB32 ControlLogix Input Module. 1 x Removable Terminal Block (1756-TBCH or 1756-TBS6H). The terminal block type depends on the order. The module ships in anti-static packaging.