1756-IB32 ControlLogix digital I/O module Has thirty-two (32) input channels

Manufacturer Rockwell Automation
Brand Allen Bradley
Part Number/Catalog number Model 1756-IB32
Series ControlLogix
The Allen-Bradley 1756-IB32 is a ControlLogix digital I/O module. As part of the ControlLogix system, this input module has 32 inputs divided into 2 groups of 16 points each. It is mounted to the ControlLogix case using the required detachable terminal housing or RTB (such as Allen-Bradley 1756-TBCH or 1756-TBS6H). This module occupies a single slot in the ControlLogix chassis and is available in an open case type. The 1756-IB32 module operates from 10 to 31.2 V DC with a nominal input voltage of 24 V DC. Its voltage class is 12/24 volts DC perfusion current, 5.1 volts current consumption is 120 mA, 24 volts current consumption is 2 mA, and the total fixed power of the backplane is 0.66 W. At 60 degrees Celsius, the maximum power consumption is 6.2 W, while at 60 degrees Celsius, the heat dissipation is 21.1 BTU/ hour.

The Allen-Bradley 1756-IB32 ControlLogix digital I/O module has a maximum surge current rating of 250 mA, and the surge current decays to less than 37% in 22 milliseconds without activation. In the off state, it has a maximum current of 2.27 mA and a maximum voltage of 5 volts. The input delay time for the off and on off processes is different. For the shutdown process, hardware latency is up to 380 microseconds, plus user-configurable filtering times of 0, 1, or 2 milliseconds. Customs latency includes hardware latency of up to 420 microseconds and user-configurable filtering times of 0, 1, 2, 9 or 18 milliseconds.

The Allen-Bradley 1756-IB32 is a high-density discrete input module that belongs to the ControlLogix Programmable Automation Controller (PAC) family. The module has thirty-two (32) input channels, divided into two (2) groups of sixteen (16) channels.

It can be installed in a local I/O rack or distributed I/O chassis, or in a stand-alone or distributed control system (DCS), such as Allen-Bradley's Plant PAx. After entering this module through hardware configuration, you can access the parameters of the module, such as the general properties of the module and important parameters for compatibility keying and slot assignment. The module also has configurable Request packet Interval (RPI), module suppression, communication failure response, and timed connection via ControlNet. Each channel of the module has configurable filter Settings to allow fine-tuning of the module's response time to the signal. This adjustment is useful in applications where discrete signals are unstable and exposed to noise. This feature helps prevent false positive negative readings.