Modbus TCP/IP Network Solution — Prosoft MVI56-MNET | MVI56 Series
The Prosoft MVI56-MNET is a high-performance Modbus TCP/IP client/server interface module designed for Allen-Bradley ControlLogix platforms. It enables seamless Ethernet-based Modbus communication between ControlLogix PLCs and third-party devices — meters, drives, sensors, SCADA systems, and more — without custom programming overhead.
Where This Product Is Used
The MVI56-MNET is deployed across a wide range of industrial environments where Modbus TCP/IP is the dominant field protocol:
- Power Generation & Utilities — Integrating energy meters, protection relays, and RTUs into ControlLogix-based SCADA systems via Modbus TCP.
- Water & Wastewater Treatment — Connecting flow meters, level sensors, and pump controllers to centralized PLC control networks.
- Oil & Gas Upstream/Midstream — Linking wellhead controllers, compressor skids, and custody transfer meters to Allen-Bradley control systems.
- Building Automation & HVAC — Bridging Modbus-enabled chillers, AHUs, and BMS gateways into ControlLogix architectures.
- Manufacturing & Assembly Lines — Polling data from third-party servo drives, VFDs, and vision systems that speak Modbus TCP.
- Renewable Energy (Solar/Wind) — Aggregating inverter and turbine data over Modbus TCP for plant-level monitoring and control.
Technical Specifications
- Part Number: MVI56-MNET
- Manufacturer: Prosoft Technology
- Series: MVI56 (ControlLogix Backplane Compatible)
- Protocol: Modbus TCP/IP (Client & Server)
- Network Interface: 10/100 Mbps Ethernet (RJ-45)
- Client Sessions: Up to 10 simultaneous Modbus TCP client connections
- Server Sessions: Up to 10 simultaneous Modbus TCP server connections
- Data Register Capacity: 5,000 registers (configurable)
- Backplane Interface: ControlLogix 1756 backplane (1 slot)
- Configuration Tool: ProSoft Configuration Builder (PCB) — free download
- Power Consumption: 800 mA @ 5 VDC (from backplane)
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Humidity: 5% to 95% non-condensing
- Certifications: UL Listed, CE Marked, RoHS Compliant
- Weight: 400 g
- Form Factor: Single-slot ControlLogix module
Why Engineers Specify This Model
- Dual Client/Server Architecture — Simultaneously acts as Modbus TCP client (polling remote devices) and server (responding to SCADA/HMI requests), eliminating the need for two separate modules.
- No Ladder Logic Required for Protocol Handling — All Modbus TCP communication is managed by the module’s onboard processor; the ControlLogix CPU handles only application logic.
- Large Data Buffer — 5,000-register internal database supports high-density data acquisition from multiple field devices in a single scan cycle.
- Proven Interoperability — Tested and certified compatible with hundreds of third-party Modbus TCP devices including Schneider, Siemens, ABB, and GE equipment.
- Free Configuration Software — ProSoft Configuration Builder (PCB) provides intuitive setup, diagnostics, and live data monitoring at no additional cost.
- Long Product Lifecycle — Prosoft maintains long-term availability and firmware support for MVI56 series modules, protecting your capital investment.
Complete System Bill of Materials
A typical MVI56-MNET deployment requires the following components:
- 1756-L7x or 1756-L8x ControlLogix CPU (Allen-Bradley)
- 1756-A7 or 1756-A10 ControlLogix Chassis
- 1756-PA72 or 1756-PB72 Power Supply
- MVI56-MNET — Modbus TCP/IP Interface Module (this item)
- 1756-EN2T or 1756-EN3TR EtherNet/IP Communication Module (for SCADA/HMI connectivity)
- Standard Cat5e/Cat6 Ethernet patch cables (field to module)
- ProSoft Configuration Builder software (free, PC-based)
- RSLogix 5000 / Studio 5000 (for ControlLogix program development)
Compliance & Industry Standards
- UL 508 — Industrial Control Equipment
- CE Marking — EMC Directive 2014/30/EU & Low Voltage Directive 2014/35/EU
- RoHS — Restriction of Hazardous Substances Directive (2011/65/EU)
- Modbus.org — Compliant with official Modbus TCP/IP Implementation Guide V1.0b
- IEEE 802.3 — Ethernet standard compliance
Quality Assurance & Sourcing
Konmask.com sources the MVI56-MNET through verified industrial automation supply channels. Every unit undergoes the following before dispatch:
- Visual inspection for physical damage, label integrity, and connector condition
- Firmware version verification against Prosoft’s current release matrix
- Functional power-on test confirming LED status and backplane communication readiness
- Anti-static packaging with humidity indicator card for safe international shipping
We supply both new-in-box (NIB) and factory-reconditioned units. Condition is clearly stated on each listing. All units carry a minimum 12-month warranty against manufacturing defects.
How to Source This Part
- Add to Cart — Select quantity and click “Add to Cart”. Bulk pricing available for orders of 3+ units.
- Request a Quote — For project quantities or urgent requirements, email support@konmask.com with your PO number and delivery deadline.
- Lead Time — In-stock units ship within 1–3 business days. Ex-stock lead time for special orders is 2–4 weeks.
- Export & Cross-Border Orders — We handle export documentation, commercial invoices, and HS code declarations for international shipments. Contact us for DDP/DAP terms.
Application-Specific FAQ
Q: Can the MVI56-MNET communicate with multiple Modbus TCP devices simultaneously?
A: Yes. The module supports up to 10 simultaneous client sessions, allowing it to poll up to 10 independent Modbus TCP slave devices concurrently within a single scan cycle.
Q: Is the MVI56-MNET compatible with ControlLogix L8x (v32+) firmware?
A: Yes. Prosoft has validated MVI56-MNET compatibility with ControlLogix firmware through v33. Always verify the PCB configuration file version matches your firmware revision.
Q: Can this module replace an MVI56-MCM for Modbus TCP applications?
A: The MVI56-MCM handles Modbus RTU (serial). The MVI56-MNET is the correct replacement when migrating from serial Modbus to Ethernet-based Modbus TCP/IP infrastructure.
Q: Does the MVI56-MNET support Modbus function codes FC01–FC16?
A: Yes. The module supports all standard Modbus function codes including FC01 (Read Coils), FC02 (Read Discrete Inputs), FC03 (Read Holding Registers), FC04 (Read Input Registers), FC05 (Write Single Coil), FC06 (Write Single Register), FC15 (Write Multiple Coils), and FC16 (Write Multiple Registers).
Q: What diagnostic tools are available for troubleshooting?
A: ProSoft Configuration Builder includes a built-in diagnostic port viewer showing real-time communication statistics, error counters, and register data. Module LED indicators (APP, BP ACT, OK) provide immediate visual status feedback.
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