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PROSOFT MVI56E
The PROSOFT MVI56E Series (Modbus TCP/IP Communication Module) is an industrial-grade communication gateway specifically designed for Allen-Bradley ControlLogix controllers. It enables high-speed, bidirectional data exchange between ControlLogix and Modbus TCP/IP devices (such as Modicon PACs, meters, DCSs, HMIs, etc.).
1. Overview
The MVI56E belongs to ProSoft Technology’s MVI56 Series and is an enhanced Client/Server module for Modbus TCP/IP. Building on the standard MVI56 module, it incorporates more advanced features (including local configuration, diagnostics, and CIPconnect) and larger data storage capacity.
2. Key Specifications
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Specification
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Description
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Compatibility
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Compatible with 1756 ControlLogix backplane; supports 1756-ENBT Ethernet port (10/100 Mbps)
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Communication Interface
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1 x 10/100Base-T Ethernet (RJ45)
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Data Storage
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10,000 16-bit registers (user-customizable data mapping)
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Module Storage
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Supports hot-swappable CF card for storing module configuration files
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Power Supply
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Backplane-powered; power consumption complies with ControlLogix specifications
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Operating Temperature
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Standard: 0°C – 60°C; Extreme models (e.g., MNETXT): -25°C – 70°C
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Dimensions
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1-slot module (directly insertable into ControlLogix chassis)
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3. Product Features
Bidirectional Interoperability: Supports both Modbus TCP/IP Master (Client) and Slave (Server) functions. ControlLogix can act as a Modbus server for data reading by other systems, or as a client to actively read data from remote devices.
Enhanced Features:
- Local Configuration/Diagnostics: Directly view and modify module data via the Ethernet port; supports LED status indicators and error code display.
- CIPconnect Technology: Enables cross-network access and configuration via ControlNet or EtherNet/IP bridges, supporting remote monitoring.
- Large-Capacity Register Mapping: 10,000 16-bit registers, far exceeding the 5000 Word limit of earlier modules, meeting large-scale data acquisition requirements.
- CF Card Storage: Module configurations can be saved to a CF card, facilitating backup and cross-device migration.
- Backward Compatibility: Compatible with earlier MVI56-MCM/MNET modules, allowing upgrades without modifying controller programs.
4. Structure and Components
- Ethernet Interface: For connecting to Modbus TCP/IP networks (RJ45 port).
- Backplane Slot: Standard 1756 slot, directly insertable into ControlLogix chassis.
- Register Mapping Area: Internal storage space where users can define data structures in RSLogix 5000.
- Diagnostic LEDs: LED indicators for displaying communication status, errors, and operating modes.
- Configuration Storage: Removable CF card slot (depending on specific model) for storing configuration files.
5. Application Areas
- Cross-Brand Device Integration: Connects Modicon (Schneider) PACs, Modbus-compatible inverters, meters, and DCS systems to achieve data interoperability between Rockwell and third-party devices.
- Process Control: Used for process data acquisition and monitoring in industries such as petrochemical, papermaking, and metallurgy.
- Supervisory Control and Data Acquisition (SCADA): Integrates on-site Modbus device data into upper-level computer systems.
- System Upgrades: Replaces outdated MVI56 Series modules, leveraging large-capacity registers and enhanced features to improve system performance.
6. Installation and Maintenance
Installation: Directly insert into an empty slot of the ControlLogix chassis and connect the Ethernet cable. Ensure the system is powered off before installation, or use a hot-swap supported module.
Power Supply: Powered via the ControlLogix backplane; connect to the controller’s 1756-ENBT Ethernet module for network connection and power supply.
Maintenance:
- LED Monitoring: Quickly check communication status via the module’s LED indicators.
- Local Configuration: Log in to the module’s web interface via the Ethernet port or use ProSoft Configuration Generator for parameter settings, no physical contact with the PLC required.
- Log Backup: Regularly back up configuration files in the CF card to prevent accidental loss of configurations.
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