1785-L40C15 | Allen-Bradley PLC-5 Series Dual ControlNet CPU Module

Introducing the Allen-Bradley 1785-L40C15 ControlNet PLC-5 Processor

Key Technical Specifications and Features

• Brand & Part Number: Allen-Bradley 1785-L40C15
• Processor & Memory: PLC-5/40C processor with 48 Kilowords maximum user memory (battery-backed SRAM)
• I/O Capacity: Supports 2048 total I/O (any mix) or 2048 inputs plus 2048 outputs in complementary mode
• Analog I/O: Handles 2048 forcible analog I/O points and 48,000 nonforcible points
• Program Scan Time: 0.5ms per K word for bit logic, 2ms per K word typical scan time

Communication Ports and Network Capabilities

• The 1785-L40C15 includes two built-in ControlNet ports supporting hot backup configuration.
• It features Data Highway Plus (DH+), Remote I/O (RIO), and serial communication ports for maximum flexibility.
• DH communication is available using an external 1785-KA module for expanded connectivity options.
• Serial port supports DF1 and ASCII protocols for downloading, uploading, and point-to-point communication.
• ControlNet I/O scan time averages 0.5ms, while Universal Remote I/O scans range from 3ms to 10ms per rack.

Environmental and Installation Specifications

• The 1785-L40C15 operates in temperatures from 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit).
• It withstands 5 to 95 percent noncondensing relative humidity during normal operation.
• Storage temperature range extends from -40 to 85 degrees Celsius (-40 to 185 degrees Fahrenheit).
• The module handles 30G operational shock and 1G vibration at 10 to 500 Hertz.
• It draws backplane power and features an open-style enclosure for industrial environments.

Frequently Asked Questions (FAQ)

• What is the memory capacity of the 1785-L40C15 processor?
  The 1785-L40C15 features 48 Kilowords of maximum user memory with battery-backed SRAM.
• Does this module support ControlNet redundancy?
  Yes, it includes dual ControlNet ports and supports hot backup using the 1785-CBHM cartridge.
• What communication ports come built-in with the 1785-L40C15?
  It includes two ControlNet ports, DH+, RIO, and serial ports with DF1 and ASCII protocol support.
• Which I/O modules work with this controller?
  It works with 1771, 1794, 1746, and 1791 I/O modules including 8-point, 16-point, 32-point, and intelligent modules.
• What battery does the 1785-L40C15 use for memory backup?
  It uses the Allen-Bradley 1770-XYC battery, replaceable only when the processor has active power.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner: NexAuto Technology Limited