AB 1756-IB16 ControlLogix I/O module 2 milliseconds plus selected filter time

AB 1756-IB16 ControlLogix I/O module 2 milliseconds plus selected filter time

Technical Specifications for 1756-IB16
Manufacturer Rockwell Automation
Brand AB
Part Number/Catalog No. 1756-IB16
Series ControlLogix
Inputs 16
Module Type Digital DC Input Module
No. of Inputs Thirty-Two (32) Inputs
Input Voltage 12-24 Volts DC Sink
Operating Voltage Range 10-31.2 Volts DC
Module Keying Electronic
Maximum Operating Current 10 milliamperes at 31.2 Volts DC
Input Delay Time 2 milliseconds plus selected filter time
Maximum Input Current, Off-State 1.5 milliamperes
Minimum Operating Current 2 milliamperes at 10 Volts DC
Input Delay Time, OFF to ON Hardware delay: 290 µs nom/1 ms max + filter time
Input Delay Time, ON to OFF Hardware delay: 700 µs nom/2 ms max + filter time
Power Dissipation (Max) 5.1 W @ 60 °C (140 °F)
Backplane Current at 24 Volts 2 milliamperes
UPC 10612598171290
Backplane Current at 5.1 Volts 120 milliamperes
Thermal Dissipation 21.1 BTU/hr @ 60 °C (140 °F)
Removeable Terminal Block(s) 1756-TBCH 1756-TBS6H

OTHER SUPERIOR PRODUCTS

The AB 1756-IB16 is ControlLogix I/O module. This 16-point DC input module, with 8 points per group, can be connected to a 1756 ControlLogix chassis. The compatible removable terminal block housings, or RTB, are the 1756-TBNH 20 positions NEMA RTB and the 1756-TBSH 20 position spring clamp RTB. Note that before installation, users should have the compatible RTB on hand and that the 1756 chassis and power supply should be installed and grounded.

The nominal input voltage of the 1756-IB16 module is 24 Volts DC, while the voltage category is 12/24 Volt DC sink. Its operating voltage range is 10 to 31.2 Volts DC and the total backplane power is 0.56W. The current draw at 5.1 Volts DC is 100 mA. At 24 Volts, the current draw is 2 mA. This module also has a maximum inrush current of 250 mA peak, which decays to 37% in 22 milliseconds, without activation. Its isolation voltage is 250 Volts continuous. The power dissipation of this module is around is 5.1 Watts at 60 Degrees Celsius and the thermal dissipation is 17.39 BTU/hour. The on-state current of this module ranges from 2.0 mA at 10 Volts DC to 10 mA at 31.2 Volts DC. At an off-state, it has a maximum voltage of 5V and a maximum current of 1.5 mA. The module's input delay time has a maximum of 1 ms hardware delay plus the user-configurable filter time (0, 1, or 2 milliseconds). It has a maximum hardware delay time of 2 milliseconds plus the user-configurable filter time (0, 1, 2, 9, or 18 milliseconds).

The AB 1756-IB16 is a DC sinking input module that operates at a nominal input voltage of 24VDC. This module is used with 24VDCinput signals however, may still be used with AC input voltages provided that an appropriate interposing circuitry or component is installed.

This module supports single-rack, stand-alone controller configuration for smaller and less critical application. It may also be used in larger applications where a higher degree of criticality is involved such a Remote I/O system or a Distributed Control System (DCS).

This module may be used as Discrete Input module of any ControlLogix configuration even, PlantPaX DCS platform of AB. There is virtually no limit with the number of installations of this module. The number of instances or installation depends on the Processor’s memory capability and the Physical chassis used or available slot.



The 1756-IB16 uses a Removable Terminal lock that provides a modular way of terminating input signals. It may be replaced with RTB part number of 1756-TBNH 1756-TBSH. It has a change of state property that is user-configurable and useful in applications that require immediate action when a certain input signal has changed to the defined state. Change of State (COS) bypasses the normal scan cycle of the processor for a faster logic execution.

EtherNet/IP Network Configuration
EtherNet/IP Communication Modules
1756-ENBT, 1756-EN2F, 1756-EN2T, 1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT, 1756-EN2TR, 1756-EN2TRXT,
1756-EN2TSC, 1756-EN2TXT, 1756-EN3TR, 1756-EWEB, 1768-ENBT
CompactLogix 5370 Controllers
EtherNet/IP Adapters
1734-AENT, 1734-AENTR, 1769-AENTR, 1794-AENT, 20-COMM-E, 22-COMM-E, 20-750-ENETR
Embedded Switches
1783-ETAP, 1783-ETAP1F, 1783-ETAP2

The AB 1756-OF8 is an analog output module that is part of the ControlLogix platform. This analog module may be used to control and modulate electrical and field devices, transmit or re-transmits signals for interfacing with measuring and recording instruments or for any other purpose.