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The 1762-L40BWA is an AC-powered (120/240V) programmable controller belonging to the MicroLogix 1200 family. It features a built-in 40-point I/O configuration, consisting of 16 relay outputs and 24 24V DC digital inputs, the latter of which includes 20 standard channels paired with 4 high-speed inputs.
Isolated RS-232 / RS-485 serial port for network communication
Provides four latching or pulse-catch inputs and four interrupt inputs
Built-in independent 20kHz high-speed counter
The 1762-L40BWA controller demonstrates high reliability in harsh electromagnetic environments and during long-term continuous operation. The 16 built-in digital relay outputs offer versatile load compatibility, allowing direct mixed connections of AC or DC loads with different voltage levels, while providing arc interference resistance. This simplifies peripheral electrical wiring within the control cabinet and reduces the cost of intermediate isolation relays.
The device is compatible with the RSLogix 500 programming environment, utilizing ladder logic for program design. Its built-in function blocks enable mathematical calculations, PID loop control, and data processing. Together with the Programmable Limit Switch (PLS) function, the system can drive hardware outputs directly within microseconds based on the current value of the high-speed counter, preventing position control errors caused by program scan cycle delays.
Whether applied to frequently cycling textile machinery, high-precision food filling lines, or distributed sorting systems requiring highly stable network communication, the 1762-L40BWA serves as a core choice for building small, independent control networks due to its hardware-software integration, environmental adaptability, and operational lifespan.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Allen Bradley 1762-L40BWA Controller Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Water and Wastewater Treatment
Used for automation in small-to-medium pump stations, filtration systems, and chemical dosing processes.
Packaging Machinery
Serves as the main controller for semi-automatic or fully automatic packaging equipment.
Plastics and Rubber Industry
Controls automation for small extruders, plastic blenders, and scrap recycling shredders.
Printing and Papermaking Equipment
Used for logic control in auxiliary paper cutters, single-color printing presses, and paper stacking equipment.
Electronics and Semiconductor Auxiliaries
Controls ultrasonic cleaning lines, exhaust gas scrubbers, and chemical waste drainage systems.
When using the 1762-L40BWA, strictly connect 120/240V AC power and prevent high voltage from entering DC inputs. Accurately calculate 5V and 24V backplane current when adding expansion modules up to a maximum of 6 to avoid overloading. Install external RC snubbers or freewheeling diodes for inductive loads to protect relay contacts. Avoid hot-plugging the serial port and consider relay mechanical lifespan in high-frequency switching applications.
The 1762-L40BWA is a high-density controller unit within the Allen-Bradley MicroLogix 1200 PLC platform, featuring 24 integrated digital inputs compatible with both sink and source 24V DC signaling.
It is the main programmable logic controller (PLC) base unit within the Allen-Bradley MicroLogix 1200 series by Rockwell Automation.
How many built-in I/O points does the 1762-L40BWA have?
It features a total of 40 embedded I/O points, including 24 digital inputs (24V DC) and 16 relay outputs.
What type of input signals does the 1762-L40BWA support?
Its 24 digital inputs support nominal 24V DC signals in either sink or source wiring configurations.
What is the current rating for the relay outputs of 1762-L40BWA?
The maximum continuous current per relay output point is typically 2.0A, provided that the total current per common terminal does not exceed its rated limit.
How to connect and use the 1762-L40BWA?
Wire the AC power supply first, connect field sensors to the input terminals, and link actuators (like contactors) to the relay outputs. Then, connect a PC via the serial port to program and download code using RSLogix 500 software.
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