Prosoft MVI56 PDP-MV1 Profibus DP Master Module

The Prosoft MVI56 PDP-MV1 is a high-performance Profibus DP master communication module designed for Allen-Bradley ControlLogix platforms. This module enables seamless integration of Profibus DP slave devices with ControlLogix processors, providing a robust interface for industrial automation applications requiring reliable fieldbus communication. The MVI56 PDP-MV1 supports a wide range of Profibus DP slave devices including drives, I/O systems, and process instrumentation.

Technical Specifications

• Profibus Interface: RS-485, 9-pin D-sub connector

• Profibus Baud Rates: 9.6 kbps to 12 Mbps auto-detecting

• Slave Capacity: Up to 125 Profibus DP slave devices

• Input Data: Up to 4096 bytes

• Output Data: Up to 4096 bytes

• ControlLogix Data Exchange: 5000 words input, 5000 words output

• Backplane Current Load: 800 mA at 5 V DC

Profibus DP Master Functionality

The MVI56 PDP-MV1 operates as a Class 1 Profibus DP master, managing all communication with connected slave devices. It supports DP-V0 cyclic data exchange for process data transmission and DP-V1 acyclic services for parameterization and diagnostic data access. The module automatically scans configured slaves according to the defined bus cycle, ensuring deterministic data transfer essential for time-critical control applications. GSD file support enables simple integration of any Profibus DP slave device.

Integration with ControlLogix Systems

The module mounts directly into the ControlLogix chassis, communicating with the processor through the backplane. Data transfer between the MVI56 PDP-MV1 and the ControlLogix processor is handled using standard ladder logic or user-defined data structures. The module presents data as blocks of input and output memory that can be mapped to controller tags. This architecture allows the ControlLogix processor to access Profibus data as if it were native I/O, simplifying programming and system integration.

Configuration and Diagnostics

The MVI56 PDP-MV1 is configured using ProSoft Configuration Builder software, which provides a user-friendly interface for defining the Profibus network, assigning slave addresses, and mapping data to ControlLogix memory. The software also supports uploading and downloading configuration files, managing GSD files, and generating diagnostic reports. On-module diagnostics include status LEDs for power, backplane communication, and Profibus network activity, enabling rapid troubleshooting during installation and operation.

Applications

The MVI56 PDP-MV1 is suitable for a wide range of industrial automation applications:

• Integration of Profibus DP drives with ControlLogix systems

• Connection of distributed I/O systems using Profibus

• Process automation requiring interface with Profibus instruments

• Retrofit projects upgrading legacy Profibus systems to ControlLogix

• Manufacturing facilities with mixed fieldbus architectures

Environmental Specifications

• Operating Temperature: 0°C to 60°C (32°F to 140°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Relative Humidity: 5% to 95% non-condensing

• Vibration: IEC 60068-2-6 compliant

• Shock: IEC 60068-2-27 compliant

Certifications and Compliance

The MVI56 PDP-MV1 is certified for use with Allen-Bradley ControlLogix systems and meets applicable standards for industrial control equipment. It complies with CE requirements for electromagnetic compatibility and is UL listed for industrial control equipment. The module is manufactured under ISO 9001 quality management systems.

Installation and Maintenance

Installation involves inserting the module into an available slot in the ControlLogix chassis. No external power supply is required beyond the backplane power. The module is hot-swappable, allowing replacement without powering down the system. Configuration is stored in non-volatile memory, preserving settings through power cycles. Regular maintenance is limited to periodic inspection of connections and monitoring diagnostic indicators.