The Allen-Bradley 1772-LW is a Mini-PLC-2/17 processor module designed for industrial automation and control applications. It operates without an internal power supply and supports up to 512 total I/O and 512 analog I/O points. The processor features a 7.75K SRAM memory size, ideal for controlling and monitoring various industrial processes. It is compatible with 1771 I/O chassis and includes a 15-pin interface port for easy connectivity. Additionally, the module is conformally coated, ensuring durability in industrial environments.

Technical Specifications

• Processor Type: Mini-PLC-2/17
• Memory: 7.75K SRAM (16-bit words)
• Total I/O: 512 digital I/O points
• Analog I/O: 512 analog I/O points
• Ports: 15-pin interface port
• Coating: Conformal coat for environmental protection
• Weight: 0.3 lbs (0.1 kg)
• Dimensions: 4.5 x 12.4 x 6.3 inches (115 x 317 x 160 mm)
• Operating Temperature: 0 to 60°C
• Storage Temperature: -40 to 85°C
• Humidity: 5% to 95%, non-condensing
• Power Supply: None (external power required)
• Backplane Current: 1.25 A
• Wiring Arm: 1771-WN
• Program Scan Time: 7.5 ms/K (minimum), 12 ms (typical)
• I/O Scan Time:
  • 0.82 ms for 2-slot addressing
  • 2 ms for 1-slot addressing
  • 2.15 ms for 1/2-slot addressing
• Instruction Set: Includes basic (counters, timers, math) and advanced (sequencers, subroutines, PID) instructions.