Allen-Bradley/Rockwell Automation 1771-IQ16 Discrete Input Module

The Allen-Bradley 1771-IQ16 is a discrete input module that is part of the 1771 Programmable Logic Controller (PLC) platform. This module is typically used to interface discrete electrical and mechanical devices such as switches, sensors, auxiliary contacts, pushbutton devices and similar devices to the controller module for reference of logic execution. The 1771-IQ16 converts the received electrical signal to a binary, digital signal and stores this data to the controller’s programmable memory.

The 1771-IQ16 mainly features Sixteen (16) isolated input channels that operates at a voltage range of 10-32VDC with nominal input voltage of 24VDC. It has maximum On-state voltage of 10VDC and maximum Off-state voltage of 5VDC. Each channel exhibits signal delay for OFF to ON and ON to OFF transitions. Specifically, 0.57 ms and customer selectable 0, 0.57, 9 and 18 ms.

Technical specifications for 1771-IQ16

ManufacturerRockwell Automation

Module TypeIndividually isolated discrete input module

Part Number/Catalog No.1771-IQ16

BrandAllen-Bradley

Series1771 Product Bulletin

No. of InputsSixteen (16) Inputs

Operating Voltage Range10 to 32VDC

Input Delay Time, OFF to ON0.57 ms

Input Delay Time, ON to OFF0, 0,57, 9 and 18 ms.

Power Dissipation15.0 Watts (max.), 0.5 Watts (min.)

Thermal Dissipation51.0 BTU/hr (max.), 1.7 BTU/hr (min.)

Backplane Current at 24 Volts100mA

Compatible chassis1771-A1B thru 1771-A4B

KeyingBetween 22 and 24; Between 30 and 32

Field Wiring ArmCat. No. 1771-WN

Wiring Arm Screw Torque9 inch-pounds

Number of Inputs16 Inputs

Voltage Category10-60 Volts DC, Sink or Source Load

DC Operating Voltage10-32 Volts

Backplane Current100 Miliamperes

Max DC Off-State Current2.0 Miliamperes

Typical DC Signal DelayFour Filter Times: 0, 1, 9, & 18 ms

Wiring Arm1771-WH

Typical AC Signal Delay (On)35 (+/- 10) ms

Typical DC Signal Delay (On)10 ms

Typical AC Signal Delay (Off)45 (+/- 15) ms

Typical DC Signal Delay (Off)50 ms

MountingRack Mountable

The 1771-IQ16 is mounted to a 1771 chassis. Compatible chassis are 1771-AB thru 1771-A4B chassis. When wiring signal wires to the 1771-IQ16, compatible wire size range is 14 to 122 American Wire Gauge (AWG) stranded or solid copper wire with maximum insulation thickness of 3/64 inch. Module keying is between 22 and 24 / 30 and 32. This module is shipped with a Field Wiring Arm that permits user-friendly installation and maintenance. For Field wiring arm replacement, appropriate part number is 1771-WN.