PROSOFT MVI56E-MNETCR Modbus TCP/IP Communication Module | Replacement, Equivalent & Selection Guide
The PROSOFT MVI56E-MNETCR is a high-performance Modbus TCP/IP Client/Server communication module designed for Allen-Bradley ControlLogix platforms. This page provides full technical specifications, compatible replacement models, application guidance, and a structured selection guide to help industrial automation engineers make informed procurement decisions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | MVI56E-MNETCR |
| Manufacturer | ProSoft Technology |
| Protocol | Modbus TCP/IP (Client & Server) |
| Platform Compatibility | Allen-Bradley ControlLogix (1756 backplane) |
| Ethernet Ports | 2 × RJ45 (10/100 Mbps) |
| Max Client Connections | Up to 16 simultaneous Modbus TCP clients |
| Max Server Connections | Up to 16 simultaneous Modbus TCP servers |
| Data Memory | Up to 5,000 registers (read/write) |
| Backplane Current Draw | 800 mA @ 5 VDC |
| 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, CE, RoHS |
| Weight | ~400 g |
| Form Factor | Single-slot ControlLogix module |
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as functional replacements or equivalents for the MVI56E-MNETCR. Always verify firmware compatibility and backplane slot requirements before substitution.
| Model | Manufacturer | Protocol | Platform | Notes |
|---|---|---|---|---|
| MVI56-MNETCR | ProSoft Technology | Modbus TCP/IP | ControlLogix | Previous generation; no dual Ethernet port |
| MVI56E-MNET | ProSoft Technology | Modbus TCP/IP | ControlLogix | Client-only variant; no server functionality |
| MVI56E-MNETCR (Refurb) | ProSoft Technology | Modbus TCP/IP | ControlLogix | |
| 1756-ENBT/A | Allen-Bradley / Rockwell | EtherNet/IP | ControlLogix | Native Rockwell; different protocol stack |
| HMS Anybus X-gateway | HMS Networks | Modbus TCP ↔ EtherNet/IP | Multi-platform | Gateway approach; suitable for protocol bridging |
| Moxa MGate MB3480 | Moxa | Modbus TCP/RTU | Standalone gateway | External gateway; no backplane integration |
Note: Konmask.com supplies both new and certified-refurbished MVI56E-MNETCR units. Contact us to confirm current stock and lead time.
Why Choose the Original Model
- Native ControlLogix Integration: Mounts directly in the 1756 backplane — no external wiring or gateway hardware required.
- Dual Ethernet Ports: Supports device-level ring (DLR) topology and network redundancy out of the box.
- Simultaneous Client & Server: The MVI56E-MNETCR handles both roles concurrently, reducing module count in complex architectures.
- ProSoft Configuration Manager (PCM): Dedicated configuration software with diagnostics, live data monitoring, and ladder logic sample code.
- Proven Field Record: Widely deployed in oil & gas, water treatment, and discrete manufacturing since 2010.
- Long-term Support: ProSoft provides firmware updates, technical support, and replacement parts for extended product lifecycle.
Typical Applications
- Integrating third-party Modbus TCP devices (drives, meters, sensors) into a ControlLogix PLC system
- SCADA/HMI communication via Modbus TCP over Ethernet
- Energy management systems requiring multi-device polling
- Water & wastewater treatment plant automation
- Oil & gas pipeline monitoring and control
- Building automation and facility management systems
- Redundant network architectures requiring dual-port Ethernet
System Compatibility
| Component | Compatible Models |
|---|---|
| PLC Platform | Allen-Bradley ControlLogix 1756 series (all chassis sizes) |
| Chassis | 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 |
| Power Supply | 1756-PA72, 1756-PB72, 1756-PA75, 1756-PB75 |
| Studio 5000 / RSLogix 5000 | Version 16.0 and above |
| RSLinx Classic | Version 2.54 and above |
| Modbus Device Compatibility | Any Modbus TCP/IP compliant device (FC01–FC23 supported) |
Selection Guide
Use the following criteria to determine whether the MVI56E-MNETCR is the right module for your application:
- ✅ Choose MVI56E-MNETCR if: You need simultaneous Modbus TCP Client AND Server in a single ControlLogix slot, require dual Ethernet ports for network redundancy, or are integrating 1–16 Modbus TCP devices.
- ⚠️ Consider MVI56E-MNET if: You only need Client functionality and want a lower-cost option without server capability.
- ⚠️ Consider MVI56-MNETCR if: You have legacy systems without dual-port requirements and budget constraints apply.
- ❌ Avoid direct substitution with 1756-ENBT/A: This module uses EtherNet/IP, not Modbus TCP — protocol conversion would be required.
- 🔄 Consider external gateways (Moxa, HMS) if: Your application is platform-agnostic or requires protocol bridging between Modbus TCP and other industrial protocols.
Quality Assurance & Sourcing
- Authorized & Verified Supply Chain: All units sourced through traceable distribution channels with documentation available on request.
- Inspection Protocol: Each module undergoes visual inspection, firmware version verification, and functional power-on testing before shipment.
- Warranty: 12-month warranty on new units; 90-day warranty on certified-refurbished units.
- Counterfeit Prevention: Serial number and label verification performed against manufacturer records where applicable.
- Export Compliance: All orders processed in accordance with applicable export control regulations (EAR/ECCN).
How to Order
- Step 1: Confirm your ControlLogix chassis model and available slot count.
- Step 2: Verify Studio 5000 / RSLogix 5000 version compatibility (v16.0+).
- Step 3: Select New or Certified-Refurbished unit based on budget and lead time requirements.
- Step 4: Add to cart or contact support@konmask.com for bulk pricing, expedited sourcing, or technical pre-sales consultation.
- Step 5: Provide your shipping address and preferred freight method — we ship globally with DHL, FedEx, and UPS.
Replacement & Compatibility FAQ
Q: Can the MVI56E-MNETCR replace the older MVI56-MNETCR directly?
A: Yes, in most cases. The MVI56E-MNETCR is the enhanced successor with dual Ethernet ports. The Add-On Instruction (AOI) and configuration file may need to be updated in Studio 5000.
Q: Is the MVI56E-MNETCR compatible with CompactLogix?
A: No. This module is designed exclusively for the ControlLogix 1756 backplane. For CompactLogix, consider the MVI46-MNETCR or an external Modbus TCP gateway.
Q: How many Modbus TCP devices can this module communicate with simultaneously?
A: Up to 16 as a client and up to 16 as a server — 32 total connections across both roles.
Q: Does Konmask.com provide configuration support?
A: Yes. Our technical team can assist with ProSoft Configuration Manager (PCM) setup, ladder logic integration, and network topology planning. Contact us at support@konmask.com.
Q: What is the lead time for new units?
A: Typically 3–7 business days for in-stock units. Expedited sourcing available for urgent requirements — contact us for current availability.
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