The Allen-Bradley 1766-L32BXBA belongs to the MicroLogix 1400 family and serves as a versatile controller for micro automation projects. This unit offers a balanced mix of digital and analog I/O. Specifically, it provides twelve fast 24VDC inputs, eight normal 24VDC inputs, two voltage analog inputs, six relay outputs, three fast DC outputs, three normal DC outputs, and two analog voltage outputs.
Furthermore, this 1766-L32BXBA controller supports multiple communication interfaces. You get one isolated RS232/RS485 combo port, one non-isolated RS232 port, and one Ethernet port. These connections enable seamless data exchange with HMIs, SCADA systems, and third-party devices. Supported protocols include DF1, ASCII, MODBUS RTU, DNP3, DH485 for serial, plus Ethernet/IP, MODBUS TCP, and DNP3 over Ethernet.
When evaluating the Allen-Bradley 1766-L32BXBA, its technical parameters stand out clearly. The operating power is 24V DC, with an inrush current of 15 A for 20 ms. The input voltage range spans 0 to 24V DC, while analog inputs accept 0 to 10.0V DC. Relay outputs handle 5–125V DC or 5–264V AC loads.
Additionally, the onboard memory totals 20 KB, which is sufficient for small to medium user programs and data tables. A built-in real-time clock (RTC) provides time-stamping and scheduled control tasks. The controller also includes up to six 100 kHz high-speed counters, but only when using DC inputs. These counters are perfect for positioning and speed monitoring applications.
For connectivity, the Ethernet port on the 1766-L32BXBA also offers web server and email capabilities. This feature allows remote monitoring and alert notifications without extra hardware. Moreover, the two serial ports support DH485 networks, making legacy system integration straightforward.
Physically, the 1766-L32BXBA measures 3.5 x 7.08 x 3.43 inches (89 x 180 x 87 mm) and weighs approximately 2 pounds (0.9 kg). It supports both panel and DIN-rail mounting, giving you installation flexibility. The unit is rated for open enclosures and operates cleanly in industrial environments. Circuits must not exceed Over Voltage Category II to ensure safe operation.
In terms of environmental tolerance, this controller works reliably in temperatures from 0°C to 55°C. Humidity ranges from 5% to 95% non-condensing. These parameters make the Allen-Bradley 1766-L32BXBA suitable for factory floors, workshops, and control cabinets.
Installing the 1766-L32BXBA is straightforward. First, choose either panel mounting with screws or snap it onto a standard 35 mm DIN rail. Ensure the enclosure provides adequate ventilation and protection from moisture. Next, connect the 24V DC power supply to the designated terminals, observing correct polarity.
After power is secured, wire the input and output devices according to the terminal layout. Fast DC inputs handle high-speed signals like encoders, while normal DC inputs suit push buttons and limit switches. Relay outputs can drive contactors or solenoids directly. For analog signals, use shielded cables to minimize electrical noise. Finally, configure the communication ports using RSLogix 500 or Connected Components Workbench software.
Your shipment for the Allen-Bradley 1766-L32BXBA includes the following items:
One MicroLogix 1400 controller module (1766-L32BXBA)
One removable terminal block for I/O connections
One user manual quick-start guide (printed)
One grounding clip and mounting hardware kit
Note: Battery (1746-BA) is sold separately. Cables and software are not included.
We ship all orders via FedEx, UPS, or DHL with tracking numbers provided. Standard delivery takes 3–7 business days depending on your region. Expedited shipping options are available upon request.
1. Can the 1766-L32BXBA expand beyond its built-in I/O?
Yes. This controller supports up to seven additional 1762 expansion I/O modules, allowing you to increase digital or analog points as needed.
2. What software is required to program the MicroLogix 1400?
You need RSLogix 500 (version 8.10 or higher) or Connected Components Workbench. Both support ladder logic programming for the Allen-Bradley 1766-L32BXBA.
3. Does this controller support Modbus communication?
Absolutely. The serial port handles MODBUS RTU, and the Ethernet port supports MODBUS TCP/IP. This makes integration with third-party devices very simple.
4. Is the real-time clock battery-backed?
Yes. The RTC retains time and date even after power loss, thanks to the internal battery. For extended backup, you can install a replaceable 1746-BA battery.
5. What is the maximum frequency for high-speed inputs?
The fast DC inputs on the 1766-L32BXBA can count up to 100 kHz. This is ideal for encoder feedback, high-speed counting, and pulse measurement applications.
| Brand Name | |
| Model No. | 1766-L32BXBA |
| Product Type | Programmable Logic Controller |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
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