FANUC VMIVME-2536 Digital I/O Board – VMEbus Interface

The FANUC VMIVME-2536 is a versatile digital I/O board designed for VMEbus-based industrial control systems. This board provides a combination of optically isolated digital input and output channels, enabling reliable interfacing with sensors, switches, relays, and actuators in noisy industrial environments. The optical isolation provides complete electrical isolation between the VMEbus and field I/O, protecting the host system from voltage transients and ground loops.

The VMIVME-2536 is ideal for applications requiring robust, noise-immune I/O, such as factory automation, process control, and defense systems. Its VMEbus compatibility allows easy integration into existing systems, while its flexible channel configuration enables adaptation to a wide range of field devices.

Key Features

• Optically Isolated I/O: Provides electrical isolation for noise immunity and system protection.

• Digital Input Channels: Accepts signals from sensors, switches, and other field devices.

• Digital Output Channels: Drives relays, solenoids, and indicator lights.

• VMEbus Compatibility: Standard VME form factor for easy integration.

• Industrial Grade: Designed for harsh environments and extended temperature operation.

• Status Read-Back: Software-accessible input and output states for diagnostics.

Technical Specifications

The VMIVME-2536 typically provides 32 isolated digital inputs and 32 isolated digital outputs, with variants available for different channel counts and voltage levels. Inputs are compatible with a wide range of logic levels, including 5V, 12V, and 24V. Outputs are capable of sourcing or sinking up to several hundred milliamperes per channel.

Optical isolation provides up to 2500V of isolation between the field side and the VMEbus. The board includes protection against overcurrent and overvoltage on both inputs and outputs.

Applications

• Factory Automation: Interfacing with PLCs, sensors, and actuators.

• Process Control: Reading valve status and driving control relays.

• Defense Systems: Vehicle control and diagnostic systems.

• Test Equipment: Digital signal acquisition and generation.

Integration and Configuration

Integration is straightforward with standard VMEbus connectors. Configuration is performed via software, with flexible channel mapping and interrupt options.

Benefits

• Reliability: Optical isolation ensures reliable operation in electrically noisy environments.

• Flexibility: Configurable I/O channels suit diverse applications.

• Protection: Isolation safeguards the VME system from external faults.

• Compatibility: Standard VME interface simplifies system integration.

Conclusion

The FANUC VMIVME-2536 digital I/O board provides a reliable, isolated interface between VMEbus systems and industrial field devices, making it an essential component for applications requiring robust, noise-immune digital I/O.