Manufacturer Rockwell Automation
Brand Allen Bradley
Part Number/Catalog number Model 1756-IB16
Series ControlLogix
Input 16
Module Type Digital DC input module
Allen-Bradley 1756-IB16 is a ControlLogix I/O module. This 16-point DC input module, with 8 points in each group, can be connected to the 1756 ControlLogix chassis. The compatible removable terminal housing (RTB) is the 1756-TBNH 20-bit NEMA RTB and the 1756-TBSH 20-bit spring clip RTB. Please note that users should have a compatible RTB on hand before installation, and the 1756 case and power supply should be installed and grounded.
The 1756-IB16 module has a nominal input voltage of 24 V DC, while the voltage class is 12/24 V DC perfusion current. Its operating voltage range is 10 to 31.2V DC, with a total backplane power of 0.56W. The current consumption at 5.1 V DC is 100 mA. At 24 V, the current consumption is 2 mA. The module has a maximum surge current peak of 250 mA, which decays to 37% in 22 milliseconds without activation. Its isolation voltage is 250 volts continuous. The module has a power consumption of about 60 watts at 5.1 degrees Celsius and a heat dissipation of 17.39 BTU/ hour. The conduction current range of the module is 2.0 mA (10 V DC) to 10 mA (31.2 V DC). In the off state, the maximum voltage is 5V and the maximum current is 1.5mA. The module has an input delay of up to 1 ms hardware delay plus a user-configurable filter time (0, 1 or 2 ms). It has a maximum hardware latency of 2 milliseconds, plus user-configurable filter times (0, 1, 2, 9 or 18 milliseconds).
Allen-Bradley 1756-IB16 is a DC perfusion current input module that operates at a nominal input voltage of 24VDC. The module is used with a 24VDC input signal, but can still be used with an AC input voltage, provided the appropriate insertion circuit or component is installed.
The module supports single-stand, standalone controller configurations for smaller, less critical applications. It can also be used for larger applications that involve a higher degree of criticality, such as remote I/O systems or distributed control systems (DCS).
The module can be used as a discrete input module for any ControlLogix configuration, even Allen-Bradley's PlantPaX DCS platform. There is almost no limit to the number of installations of this module. The number of instances or installations depends on the memory capacity of the processor and the physical chassis or available slots used.
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