The Rockwell 1764-24BWA is classified among the MicroLogix 1500 Programmable Controllers line. This series features controllers for industry that are composed of processors, base units and accessories. The 1764-24BWA is a MicroLogix 1500 base unit. Base units provide power supply to the processor and also provide a set of integrated I/Os within the unit. This module has a set of 12 inputs and 12 outputs. The inputs are meant to read 24 volts DC sink/source signals at a current of 400 milliampere and may handle a maximum capacity of 400 microfarad. The system also supports high speed inputs at a frequency up to 20 kilohertz. Inputs from 0 to 7 have a nominal impedence of 3.3 kiloohms and inputs from 8 to 12 have a nominal impedence of 2.7 kiloohms. The outputs of this module are based on relays. The device can stand shocks below 40 g when it is turned off, below 30 g while the system is running, below 7.5 g if the relays are operating. The module can withstand temperature going from 32 Fahrenheit degrees to 131 Fahrenheit degrees while it is running and from -40 Fahrenheit degrees to +185 Fahrenheit degrees while in storage. The system runs on AC power supply with an input voltage ranging from 85 to 265 volts AC (nominal values should be 120 or 240 volts AC). The maximum vibration that the base unit can stand is 5 g if the frequency is below 500 hertz. If the system’s output relays are being used, the maximum vibration intensity will be 2 g.

The 1764-24BWA is a base unit MicroLogix 1500. This product, which was produced by the Allen-Bradley company, has twelve (12) inputs with a rated twenty-four (24) volts direct current, or DC, and twelve (12) outputs relay. This unit has a power supply rating of one hundred twenty (120) to two hundred forty (240) volts of alternating current (AC) and an operating frequency of forty-seven (47) to sixty-three (63) hertz. The line power rating for this device is eighty-five (85) to two hundred sixty-five (265) volts alternating current and the power supply inrush rating of 120 volts alternating current, which equals twenty-five (25) amperes for eight (8) ms or 240V AC, which equals forty (40) amperes for four (4) ms. The user power output is rated at twenty-four (24) volts direct current at 400 mA, 400 microfarad maximum. The Allen-Bradley 1764-24BWA's input type circuit is 24 volts direct current, sink/source, while having a relay for the output circuit type. The On-state voltage range for inputs zero (0) through seven (7) is from fourteen (14) to thirty (30.0) volts DC at 30 °C (86°F) or fourteen (14) to 26.4 volts DC at 55 °C (131°F). The Off-state voltage range for inputs from zero (0) to seven (7) is zero (0) to five (5) volts DC. The wire sizes that are recommended for this unit's Input Output terminals are fourteen (14) to twenty-two (22) AWG.
The Base unit's ambient temperature range when operational is between zero (0) and fifty-five (55) degrees Celsius, or thirty-two (32) to one hundred and thirty-one (131) degrees Fahrenheit. The recommended ambient temperature range for this base unit when storing is from minus forty (-40) to plus eighty-five (+85) degrees Celsius (-40 to 185 degrees Fahrenheit). The operating humidity range for this device is five percent to ninety-five percent relative humidity, while also being non-condensing. The operating vibration rating for the base unit is ten (10) to five hundred (500) hertz, 5G, 0.015 inches. peak-to-peak, Relay Operation: 2G. The unit has dimensions of 138 mm x 168 mm x 87 mm, or 5.43 inches x 6.62 inches x 3.43 inches.