The 1762-L40BWA controller belongs to the Allen-Bradley MicroLogix 1200 family. This compact PLC delivers 40 total I/O points, balancing 24 discrete inputs with 16 relay outputs. Engineers often choose this model for its flexible wiring options and reliable performance in demanding environments. The integrated RS232 serial port supports multiple protocols, including DH-485, DF1, Modbus, and ASCII. Furthermore, the controller accepts a wide input power range of 120 to 240V AC. Whether you need to upgrade an existing system or build a new control panel, the 1762-L40BWA offers a cost-effective and feature-rich solution.
This section covers the core electrical and performance characteristics of the 1762-L40BWA controller. The input section consists of 20 standard 24V DC inputs plus 4 fast 24V DC inputs, bringing the total to 24. These inputs support both sinking and sourcing configurations, giving you flexibility when connecting sensors and switches. On the output side, the unit provides 16 relay outputs rated for 24-125V DC and 120-240V AC. Each relay contact can handle a minimum load current of 10A and offers a mechanical life of 20,000,000 cycles. The controller draws 82 VA of power and features an internal power supply. Its input power range covers 120 to 240V AC at a frequency of 47 to 63 Hz. Additionally, the inrush current reaches 25A at 120V for 8 ms and 40A at 240V for 4 ms.
The 1762-L40BWA includes an integrated 8-pin Mini DIN RS232 communication port. This port supports several industrial protocols, including DF1 Full and Half Duplex, DH-485, Modbus Master and Slave, and ASCII. Specifically, DF1, ASCII, and Modbus operate in a peer-to-peer configuration. You can also use external converters to expand the serial port's functionality. For instance, an RS232-to-Ethernet converter or an RS232-to-RS485 converter allows connection to multiple devices. When building a DH-485 network, you will need an external converter like the 1761-NET-AIC. This flexibility makes the 1762-L40BWA suitable for various communication architectures, from simple point-to-point links to multi-drop networks.
Physically, the 1762-L40BWA measures 90 mm in height (or 104 mm with the DIN latch open), 160 mm in width, and 87 mm in depth. The unit weighs approximately 1.09 kg (2.4 pounds). It supports two mounting options: DIN rail mounting or panel mounting. This versatility simplifies installation in different enclosure types. Regarding environmental conditions, the controller operates within an ambient temperature range of 0 to 55 °C. You must install the 1762-L40BWA inside a suitable enclosure that offers adequate protection against dust, moisture, and physical damage. Furthermore, the enclosure may require climate control devices such as heaters, fans, or both, depending on the installation site. Maintaining proper temperature ensures long-term reliability and prevents thermal-related failures.
Proper installation of the 1762-L40BWA requires careful planning and attention to detail. First, select an enclosure that meets the protection needs of your application. The enclosure must maintain an internal temperature between 0 and 55 °C to keep the controller within its specified operating range. If the ambient conditions exceed this limit, consider adding forced-air cooling or heating elements. Next, mount the controller using either the DIN rail clips or the panel mounting tabs. Ensure the unit has sufficient clearance for wiring and airflow. When wiring the inputs, choose either sinking or sourcing configuration based on your field devices. For relay outputs, verify that the load current meets the minimum 10A requirement and that the voltage does not exceed the rated limits. Finally, connect the RS232 port to your programming device or network converter using a suitable cable.
Each order of the 1762-L40BWA includes the controller module itself. The package also contains the necessary mounting hardware for both DIN rail and panel installation. A quick-start guide provides basic setup instructions. Please note that communication cables and external converters, such as the 1761-NET-AIC, are not included and require separate purchase. For shipping, we rely exclusively on trusted global carriers. All orders ship via FedEx, UPS, or DHL to ensure timely and secure delivery. Your product will arrive in protective packaging to minimize transit damage.
1. Does the 1762-L40BWA support both sinking and sourcing inputs?
Yes, the 1762-L40BWA inputs are configurable for both sinking and sourcing wiring. This feature gives you flexibility when connecting different types of sensors and switches.
2. What communication protocols does the 1762-L40BWA support?
The 1762-L40BWA supports DF1 Full and Half Duplex, DH-485, Modbus Master and Slave, and ASCII protocols through its RS232 port.
3. Can I mount the 1762-L40BWA on a DIN rail?
Absolutely. The 1762-L40BWA supports both DIN rail mounting and panel mounting. You can choose the method that best fits your enclosure design.
4. What is the operating temperature range for this controller?
The 1762-L40BWA operates reliably between 0 and 55 °C. You must install it inside an enclosure that maintains this temperature range.
5. Does the 1762-L40BWA include an internal power supply?
Yes, the 1762-L40BWA features a built-in power supply that accepts 120 to 240V AC input. It provides the necessary power for the controller and its I/O circuits.
| Brand Name | |
| Model No. | 1762-L40BWA |
| Product Type | Programmable Logic Controller |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
