Description

The Allen-Bradley 1785-L40C15 is a high-performance PLC-5/40 programmable controller processor module designed for demanding industrial automation environments. This unit features integrated ControlNet communication capabilities, allowing for high-speed, deterministic data exchange across distributed control systems. As part of the legacy PLC-5 family, this processor provides reliable control logic execution and is equipped with 48 kilowords of SRAM for program and data storage.

Features

• Integrated ControlNet interface for seamless communication with distributed I/O and peer-to-peer messaging.
• 48 Kiloword SRAM memory capacity for complex control applications.
• Robust PLC-5 architecture suitable for large-scale industrial processes.
• Designed for high-reliability operation in critical control loops.
• Compatible with standard PLC-5 chassis backplanes.

Applications

The 1785-L40C15 is typically utilized in manufacturing, automotive, and process industries where deterministic communication and legacy PLC-5 control logic are required. It is frequently deployed in systems requiring integration with ControlNet networks for distributed control and monitoring.

Technical Specifications

Installation Guidelines

• Ensure the PLC-5 chassis is powered down before inserting or removing the processor module to prevent electrical damage.
• Verify that the module is fully seated in the designated slot and that the locking tabs are engaged.
• Follow standard ESD (Electrostatic Discharge) precautions when handling the module to protect internal circuitry.
• Ensure proper ventilation within the cabinet to maintain operating temperatures within specified limits.
• Route communication cables away from high-voltage power lines to minimize EMI (Electromagnetic Interference).

FAQ

Is this module still supported by the manufacturer?
No, the 1785-L40C15 has been discontinued by Allen-Bradley. It is typically sourced as a spare part for maintaining legacy systems.

What is the primary communication protocol for this processor?
This model features an integrated ControlNet interface, which provides high-speed, deterministic communication for industrial control networks.