Product Details

Modicon 3185996 is a rugged industrial control circuit board and reliable main logic board, an original OEM spare PCB designed for legacy Modicon automation controllers. This plc spare pcb handles core auxiliary logic processing, internal signal routing and data transmission between the main CPU and peripheral I/O circuits. It converts command and feedback signals to ensure stable interaction across the control rack, and carries onboard filtering components to reduce electrical noise interference from plant power lines. Built with heavy-duty industrial grade components and conformal coating, the board resists moisture, dust and vibration that commonly exist in continuous process environments. As a discontinued legacy spare, this industrial control circuit board serves as a drop-in replacement to recover internal signal communication for ageing Modicon control equipment.

Basic Parameters

Brand: Modicon (Schneider legacy)

Model: 3185996

Product Type: Auxiliary Main Logic PCB Board

Installation: Chassis slot mounting

Board Type: Multi-layer industrial PCB with conformal coating

Interface: Pin header connectors for backplane and peripheral wiring

Signal Type: Digital control and handshake signals

Component Grade: Industrial temperature rated

Product Status: Discontinued, end of original production

Net Weight: Approximately 0.24 kg

Supported Functions

This industrial control circuit board transmits handshake, status and control signals between the central processor and surrounding hardware. The main logic board performs signal conditioning and noise filtering for internal bus signals. This plc spare pcb supports continuous cyclic data exchange, monitors internal signal integrity and assists fault reporting for the host controller. It cooperates with CPU, power supply and I/O modules to maintain normal operation of the whole automation rack, and helps restore the original control function after circuit failure.

Core Functions

As a vital main logic board, this industrial control circuit board acts as an internal signal bridge inside the controller chassis, ensuring reliable delivery of command and feedback signals. Its coated circuit design improves durability in harsh factory environments. This plc spare pcb works as a direct spare to rebuild stable internal bus communication for ageing Modicon automation racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

Relative Humidity: 5%–95%, non-condensing

Housing: Bare PCB with metal retention bracket

Protection: Onboard transient suppression, conformal coating

Anti-interference: Ground plane design for EMI reduction

Compatibility: Matched legacy Modicon controller chassis and associated modules

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm chassis compatibility, connector pin assignment and firmware version before ordering.

This is from our current stock.

available stock.xlsx