Allen-Bradley 1756-IB16I ControlLogix discrete input module

The Allen-Bradley 1756-IB16I is a ControlLogix discrete input module. This module features Sixteen (16) individually isolated input channels that accepts input signal voltage range of 10-30VDC with nominal value of 24VDC. This module is typically used to interface discrete devices such as pushbuttons, switches, auxiliary contacts and other devices that provide binary or ON-OFF signal state.

The 1756-IB16 is a single slot module that installs to any 1756 ControlLogix chassis. It may be attached to any available slot except the lect most slot which is dedicated for ControlLogix processor or communication adapters. With this, the 1756-IB16I can be used in local I/O configuration as well as remote or distributed I/O architecture.

The 1756-IB16I input channels have inherent signal transition delays. For OFF to ON transition, signal delay is 1 ms max + filter time hardware delay where user configurable filter time such as 0 ms, 1 ms, or 2 ms. For ON to OFF transition, signal delay is composed of 4 ms max + filter time where selectable filter time are 0 ms, 1 ms, 2 ms, 9 ms, or 18 ms. This module has a current draw of 100 mA @ 5.1VDC and 3 mA @ 24VDC with a total backplane power requirement of 0.58 Watts.

Technical specifications for 1756-IB16I

ManufacturerRockwell Automation

Input Voltage24VD

Module TypeDigitalDC Input module

SeriesControlLogix

Part Number/Catalog No.1756-IB16I

BrandAllen-Bradley

No. of InputsSixteen (16) individually islolated

Input Voltage range10-30VDC

ON-state Current, min.2 mA @ 10V DC

ON-state Current, max.10 mA @ 30V DC

Cyclic update time200 μs…750 ms

Signal Delay, ON transitionHardware delay: 1 ms max + filter time User-selectable filter time: 0 ms, 1 ms, or 2 ms

Signal Delay, OFF TransitionHardware delay: 4 ms max + filter time User-selectable filter time: 0 ms, 1 ms, 2 ms, 9 ms, or 18 ms

Backplane Current, 5.1VDC100 mA

Backplane Current, 24VDC3 mA

Total Backplane power0.58 W

Removable Terminal Block (RTB)1756-TBNH 1756-TBSH

Inputs16 Individually Isolated Inputs

Operating Voltage Range10-30 Volts DC

Input Delay Time4 milliseconds plus selected filter time

Minimum Operating Current2 milliamperes at 10 Volts DC

Maximum Operating Current10 milliamperes at 30 Volts DC

Maximum Input Current, Off-State1.5 milliamperes

Power Dissipation (Max)5 Watts at 60 degrees Celsius

Removeable Terminal Block(s)1756-TBCH, 1756-TBS6H