Allen-Bradley 1756-IA16 ControlLogix Programmable Automation Controller (PAC)

The Allen-Bradley 1756-IA16 is a Sixteen (16) channel AC input module from the ControlLogix Programmable Automation Controller (PAC) platform. This module is used to interface discrete signaling devices such as switches, auxiliary contacts and similarly operating devices that are rated for 120VAC, nominal and voltage range of 74-132VAC with frequency of 47-63 Hz.

The 1756-IA32 has Two (2) input groups with each input group having Eight (8) channels each. It is provided with individual channel status LED that activates to provide feedback regarding the state of each of the channel. Each of the input channel has a hardware delay time of 10 ms max + filter time for OFF to ON signal transition and 8 ms max + filter time for ON to OFF signal transitions. User selectable filter time for OFF to ON transition are 1 ms or 2 ms and 9 ms or 18 ms for ON to OFF transition. This module has a cyclic update time 200 μs-750 ms.

Technical specifications for 1756-IA16

ManufacturerRockwell Automation

Input Voltage120VAC

SeriesControlLogix

Part Number/Catalog No.1756-IA16

BrandAllen-Bradley

No. of InputsSixteen (16)

Input Voltage range74-132VAC

ON-state Current, min.5 mA @ 79V AC, 47…63 Hz

ON-state Current, max.13 mA @ 132V AC, 47…63 Hz

Cyclic update time200 μs…750 ms

Signal Delay, ON transitionHardware delay: 8 ms max + filter time User-selectable filter time: 9 ms or 18 ms

Signal Delay, OFF TransitionHardware delay: 10 ms max + filter time User-selectable filter time: 1 ms or 2 ms

Backplane Current, 5.1VDC100 mA

Backplane Current, 24VDC2 mA

Total Backplane power0.58 W

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

Module TypeDigital AC Input Module

Inputs16

Operating Voltage Range74 to 132 Volts AC

Input Delay TimeProgrammable 9 or 18 milliseconds

Minimum Operating Current5 milliamperes at 74 Volts AC

Maximum Operating Current13 milliamperes at 132 Volts AC

Maximum Input Current, Off-State2.5 milliamperes

Power Dissipation (Max)5.8 Watts at 60 degrees Celsius

Backplane Current at 5 Volts105 milliamperes

Backplane Current at 24 Volts2 milliamperes

1756-IA16I

Allen Bradley ControlLogix Digital AC Input Module with 16 Individually Isolated Inputs

1756-IA16IK

Allen Bradley ControlLogix Digital AC Input Module with 16 Individually Isolated Inputs

1756-IA16K

Allen Bradley ControlLogix Digital AC Input Module with 16 Inputs