Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | MVI56E-MNETC |
| Product Type | Modbus TCP/IP Multi Client/Server Module |
| Platform Compatibility | Allen-Bradley ControlLogix (1756 chassis) |
| Form Factor | Single-slot in-chassis |
| Protocol | Modbus TCP/IP |
| Client Connections | Up to 30 |
| Server Connections | Up to 40 |
| Ethernet Port | 10/100 Mbps auto-crossover |
| Data Mapping | Up to 10,000 16-bit registers |
| Operating Environment | Standard (0–60 °C); XT version available for extended range |
4. Product Introduction (Anti-Template)
The ProSoft MVI56E-MNETC is an enhanced in-chassis communication module that allows Rockwell Automation ControlLogix PACs to exchange data with Modbus TCP/IP devices. It supports simultaneous client (master) and server (slave) operation, enabling the module to poll multiple Modbus TCP servers while also responding to requests from SCADA, DCS, or other clients.
The module occupies a single slot in a 1756 ControlLogix chassis and communicates with the Logix processor over the backplane. It provides up to 30 client connections and up to 40 server connections, making it suitable as a data concentrator in mixed-protocol networks. Configuration is typically performed with ProSoft Configuration Builder, and user-defined data mapping supports large register databases. The standard MVI56E-MNETC is intended for normal process environments; the conformal-coated MVI56E-MNETCXT variant is available for extended temperature and harsher conditions. It is widely used to connect ControlLogix systems to Modicon controllers, third-party instruments, and plant-level Modbus TCP networks.
MVI56E-MNETC
MVI56E-MNETC
MVI56E-MNETC
MVI56E-MNETC
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full catalog number (MVI56E-MNETC), revision level, Ethernet port condition, and backplane connector integrity. Photograph all labels.
- Functional Testing – Install in a compatible 1756 chassis, apply power, and verify module status LEDs and basic Ethernet link. Full validation requires the Logix application and Modbus devices.
- QA & Packaging – Protect the Ethernet and backplane connectors, clean the module, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for industrial communication modules. Packaging must protect against electrostatic discharge; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Client vs Server Configuration – Confirm whether the application requires client (polling), server (responding), or both. Incorrect role settings prevent communication.
Register Mapping – Large databases must be carefully mapped. Overlapping or incorrect mappings cause data corruption or timeouts.
Backplane Current – Verify the chassis power supply can support the module’s backplane current draw along with other modules.
Version Differences – Do not confuse the MVI56E-MNETC (TCP only) with older MVI56-MNET modules that also support serial Modbus, or with the XT conformal-coated variant.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified MVI56E-MNETC?
As a specialized ControlLogix communication module, availability depends on surplus and current stock. Typical lead time after verification is 5–15 business days plus standard shipping.
What is the primary function of this module?
It provides Modbus TCP/IP multi-client and multi-server communication for Allen-Bradley ControlLogix systems.
How many client and server connections does it support?
Up to 30 client connections and up to 40 server connections, which can operate simultaneously.
What chassis does it fit?
Single-slot 1756 ControlLogix chassis.
Is there an extended-temperature version?
Yes. The MVI56E-MNETCXT is the conformal-coated version for extended temperature and harsher environments.
Is the module still in production?
Yes. It remains an active ProSoft product for ControlLogix Modbus TCP applications.
What should be confirmed before ordering a replacement?
Exact catalog number ( vs MNETCXT), required client/server configuration, ControlLogix chassis compatibility, and firmware/software version requirements.
