Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1762-L40AWA |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Type | Programmable Logic Controller (PLC) |
| Product Series | MicroLogix 1200 |
| Number of I/O | 40 (24 Inputs, 16 Outputs) |
| Input Type | 120V AC Digital Inputs |
| Output Type | Relay Outputs |
| Power Supply Voltage | 120/240V AC (47-63 Hz) |
| Power Supply Usage | 82 VA |
| Inrush Current | 25A for 8ms @120V AC; 40A for 4ms @240V AC |
| Memory | 6 KB (4 KB User Program + 2 KB User Data) |
| Communication Ports | 1 x 8-Pin Mini-DIN Serial Port (RS-232) |
| Supported Protocols | DF1, DH-485, ASCII, MODBUS Master/Slave |
| Expansion I/O | Up to 6 x 1762 Expansion Modules |
| Operating Temperature | 0°C to +55°C (32°F to 131°F) |
| Storage Temperature | -40°C to +85°C |
| Dimensions | 87mm x 160mm x 90mm (H x W x D) |
| Weight | Approximately 1.1 kg (2.4 lbs) |
| Mounting | DIN Rail |
| Agency Approvals | UL 508, c-UL, CE, C-Tick, Class I Division 2 |
Main Features and Advantages
Integrated 40 I/O Design: The Allen-Bradley 1762-L40AWA combines a 24-input 120V AC module and a 16-output relay module with the processor and power supply into a single, compact unit. This integration eliminates the need for separate power supplies and I/O modules in many applications, significantly reducing panel space requirements and overall system cost. The removable terminal blocks on the 1762-L40AWA simplify wiring and maintenance, allowing for quick module replacement without disturbing field wiring.
High-Performance Memory and Processing: The Allen-Bradley 1762-L40AWA offers 6KB of total memory, partitioned as 4KB for user programs and 2KB for user data, providing ample capacity for a wide variety of control applications. The controller supports floating-point math operations, enabling precision calculations for complex process control tasks. The 1762-L40AWA also features data file download protection, which allows programs to be reloaded without overwriting protected data, enhancing program security and operational integrity.
Flexible Expansion and Communication: The Allen-Bradley 1762-L40AWA supports up to six 1762 series expansion I/O modules, providing a scalable solution that can adapt to evolving application requirements. The embedded 8-pin mini-DIN serial communication port supports multiple protocols including DF1, DH-485, ASCII, and MODBUS Master/Slave, offering flexible connectivity to HMIs, SCADA systems, and other network devices. The 1762-L40AWA can also be enhanced with a memory module and real-time clock (RTC) for program backup and time-stamped data logging.
Built-in Control and Adjustment Features: The Allen-Bradley 1762-L40AWA includes two built-in trim potentiometers on the front panel that allow for quick and easy adjustments of timers, counters, setpoints, and other control parameters without requiring programming software modifications. These 3/4-turn analog potentiometers provide a convenient method for local control adjustments, making the 1762-L40AWA particularly useful for machine builders who need to provide operators with simple tuning capabilities. The controller also features four high-speed inputs that can be configured for latching (pulse-catch) or event interrupts, and one high-speed output that can be configured as a 20 kHz pulse train output (PTO) or pulse width modulated (PWM) output.
Robust Construction and Compliance: The Allen-Bradley 1762-L40AWA is engineered to withstand demanding industrial environments, operating reliably across a temperature range of 0°C to 55°C and meeting stringent agency certifications including UL 508, c-UL, CE, and Class I Division 2 hazardous location compliance. This robust design ensures that the 1762-L40AWA delivers consistent performance even in harsh manufacturing conditions, providing peace of mind for mission-critical control applications.
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