Product Details
System Capabilities
The 1762-L40BWAR is a versatile and compact programmable logic controller (PLC) from the MicroLogix 1200 family, designed to handle moderate to complex automation tasks. This 40-point unit provides a high-density I/O count, featuring a mix of 24V DC discrete inputs and robust relay outputs. It is powered by a wide-range AC input, making it suitable for global industrial applications where varying voltage standards are present. The controller is engineered for field-expandability, allowing users to add 1762 expansion I/O modules to meet growing system requirements.
Technical Characteristics
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Manufacturer: Allen-Bradley / Rockwell Automation
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Product Series: MicroLogix 1200
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Model Number: 1762-L40BWAR
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Total I/O Count: 40 Points
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Input Specifications: 24 DC Inputs (20 standard and 4 high-speed ports)
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Output Specifications: 16 Relay Outputs (form A and form C)
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Operating Voltage: 120V to 240V AC (Operating range 85–264V AC)
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Input Circuit Type: Sink/Source (User-configurable)
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Relay Contact Rating: 24–125V DC; 120–240V AC
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Communication Interface: 8-pin mini-DIN RS-232 port
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Supported Protocols: DF1, DH-485, Modbus RTU Slave, and ASCII
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Inrush Current: 25A for 8ms (120V AC); 40A for 4ms (240V AC)
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Thermal Dissipation: 22 Watts
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Memory Type: 6KB non-volatile (User program and data)
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Mechanical Weight: 1.67 kg (3.69 lbs)
Operational Features and Programming
The 1762-L40BWAR is optimized for applications requiring reliable relay switching and high-speed counting. The four integrated high-speed inputs allow for interfacing with encoders or flow meters at rates up to 20 kHz. System configuration is typically performed using RSLogix 500 software, providing a stable ladder-logic environment for industrial sequencing and machine control. Its relay outputs are rated for over 20 million mechanical cycles, ensuring longevity in high-cycle packaging, material handling, and HVAC control systems.
Frequently Asked Questions
Does the 1762-L40BWAR support memory expansion?While the internal memory is fixed at 6KB, the unit supports the use of a 1762-MM1 memory module for program backup and transport between controllers.
Can I communicate with a modern PC without a serial port?To program the 1762-L40BWAR using a modern computer, a 1747-UIC (USB to DH-485) or a high-quality USB-to-RS232 converter (such as the 9300-USBS) is required to interface with the mini-DIN port.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.
Essential Best Practices for PLC Wiring and Installation in Industrial Automation
Successful control system deployment begins with thoroughly reviewing manufacturer technical documentation. Controllers from major brands like Allen-Bradley, Siemens, and Schneider Electric feature unique terminal layouts. Engineers must verify voltage requirements before connecting power cables to prevent catastrophic equipment damage. Standard line connections require strict adherence to regional electrical codes and proper wire color coding. Furthermore, panel builders should always establish a robust low-impedance ground connection using at least 16-AWG copper conductor tied directly to the main plant grounding grid.