ProSoft MVI56E-MCMXT Modbus Communication Module | Replacement, Equivalent & Selection Guide
The ProSoft MVI56E-MCMXT is an enhanced Modbus Master/Slave communication module designed for the Rockwell Automation Allen-Bradley ControlLogix platform. It enables seamless Modbus RTU/ASCII serial communication between ControlLogix PLCs and third-party Modbus-compatible field devices, meters, drives, and instruments. Konmask.com supplies genuine and compatible MVI56E-MCMXT units with full traceability for industrial automation projects worldwide.
Technical Specifications
- Part Number: MVI56E-MCMXT
- Manufacturer: ProSoft Technology
- Series: MVI56E (Enhanced ControlLogix Communication)
- Platform: Allen-Bradley ControlLogix (1756 backplane)
- Protocol: Modbus RTU / Modbus ASCII (Master & Slave)
- Ports: 2 × RS-232/RS-422/RS-485 configurable serial ports
- Max Nodes: Up to 247 Modbus slave nodes per port
- Data Table: Up to 5,000 registers (input/output)
- Backplane Current: 800 mA @ 5 VDC
- Operating Temp: 0°C to 60°C (standard); Extended temp variant available
- Certifications: CE, UL, cUL
- Form Factor: Single-slot ControlLogix module
- Weight: ~230 g
Compatible Replacement & Equivalent Models
When the MVI56E-MCMXT is unavailable or requires a cost-effective alternative, the following models offer functional equivalence or drop-in compatibility:
- ProSoft MVI56-MCM — Previous-generation Modbus master/slave for ControlLogix; same protocol, older firmware baseline
- ProSoft MVI56E-MCM — Standard (non-XT) enhanced version; identical protocol support, standard temperature range
- ProSoft MVI56-MNET — Modbus TCP/IP variant; suitable when Ethernet infrastructure is available
- Moxa NPort 5150A + ControlLogix MSG — Third-party serial-to-Ethernet gateway alternative for Modbus RTU bridging
- Kepware KEPServerEX + EtherNet/IP — Software-based Modbus gateway solution for virtualized environments
Note: Always verify backplane slot compatibility and firmware version before substitution. Contact Konmask.com for pre-sales selection support.
Why Choose the Original MVI56E-MCMXT
- ✅ Native ControlLogix integration — No external gateway hardware required; direct backplane communication
- ✅ Dual-port flexibility — Simultaneous Master and Slave operation on independent ports
- ✅ Extended temperature rating (XT suffix) — Suitable for harsh industrial environments
- ✅ ProSoft Configuration Builder (PCB) — Free, intuitive configuration software with diagnostics
- ✅ Proven reliability — Deployed globally in oil & gas, water treatment, power, and manufacturing
- ✅ Rockwell Logix Designer compatible — Add-On Instructions (AOI) and sample ladder logic included
Typical Applications
- Connecting ControlLogix PLCs to Modbus RTU energy meters, flow meters, and analyzers
- Integrating variable frequency drives (VFDs) and motor controllers via Modbus ASCII
- SCADA/DCS data acquisition from legacy Modbus field instruments
- Building automation and HVAC system integration
- Water/wastewater treatment plant control networks
- Oil & gas wellhead and pipeline monitoring systems
System Compatibility
- PLC Platform: Allen-Bradley ControlLogix 1756 series (all chassis sizes)
- Firmware: Compatible with RSLogix 5000 / Studio 5000 Logix Designer v16 and above
- Backplane: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
- Power Supply: 1756-PA72, 1756-PB72, and compatible 1756 series PSUs
- Not compatible with: CompactLogix (1769), MicroLogix, or SLC 500 platforms
Selection Guide
Use the table below to select the correct ProSoft Modbus module for your ControlLogix application:
| Requirement | Recommended Model |
|---|---|
| Modbus RTU/ASCII, standard temp (0–60°C) | MVI56E-MCM |
| Modbus RTU/ASCII, extended temp (-25–70°C) | MVI56E-MCMXT ✓ |
| Modbus TCP/IP over Ethernet | MVI56E-MNET |
| Legacy ControlLogix, Modbus RTU | MVI56-MCM |
| High-density multi-protocol | MVI56E-GSC / MVI56E-SIE |
Quality Assurance & Sourcing
- 🔍 Genuine parts sourced from authorized distributors and OEM channels
- 📦 Full traceability — batch records, date codes, and certificates of conformance available on request
- 🛡️ Anti-counterfeit inspection — all units undergo visual, functional, and firmware verification
- 🌍 Global shipping — DHL / FedEx / UPS express with export documentation support
- 📋 Warranty: 12-month replacement warranty on all stocked units
How to Order
- Confirm your ControlLogix chassis model and available slot count
- Verify operating temperature range (standard vs. XT)
- Add MVI56E-MCMXT to cart or contact us for bulk/project pricing
- Provide your project timeline — expedited sourcing available for urgent requirements
📧 Email: [email protected]
📞 Phone/WhatsApp: +0086 19859288691
🌐 Website: https://Konmask.com
Replacement & Compatibility FAQ
Q: Can MVI56E-MCM replace MVI56E-MCMXT?
A: Yes, functionally identical — the only difference is the XT extended temperature rating. Use MVI56E-MCM only if your environment stays within 0–60°C.
Q: Is MVI56E-MCMXT compatible with Studio 5000?
A: Yes. ProSoft provides AOI files and sample programs for Studio 5000 Logix Designer v21 and above.
Q: Can this module communicate with both Modbus Master and Slave simultaneously?
A: Yes. Each of the two serial ports can be independently configured as Master or Slave.
Q: Does MVI56E-MCMXT support Modbus TCP?
A: No. For Modbus TCP/IP, use the MVI56E-MNET model instead.
Q: What is the lead time for MVI56E-MCMXT?
A: In-stock units ship within 1–3 business days. Contact us for current availability.
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Contact: [email protected] | +0086 19859288691
