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The MVI56E-MNETR is a Modbus TCP/IP Client/Server Enhanced Network Interface Module. The definitive feature of this module lies in its Reduced Data Block technology, which is uniquely optimized for Remote I/O Racks and PLC logic redundancy systems connected via ControlNet or EtherNet/IP. This allows ControlLogix processors to interface easily and efficiently with a wide variety of third-party Modbus TCP/IP-compatible devices.
The MVI56E-MNETR transfers data in smaller I/O blocks than the MVI56E-MNET, which makes it ideal for installations in remote racks or where bandwidth is limited
Works well with redundant ControlLogix Programmable Automation Controllers (PACs) using ControlNet
40-word scheduled I/O image blocks used for data transfers allow module to use significantly less bandwidth than the MVI56E-MNET
The Modbus TCP/IP Client/Server Enhanced Communication Module with Reduced Data Block allows Rockwell Automation ControlLogix processors to interface easily with Modbus TCP/IP-compatible devices, such as Modicon Programmable Automation Controllers (PACs) and a wide variety of Modbus TCP/IP-compatible instruments and devices. The MVI56E-MNETR utilizes a reduced Input/Output (I/O) data block for transferring data to and from a ControlLogix processor. This reduced data block makes it ideal for use in remote rack applications over ControlNet.
For EtherNet/IP applications where bandwidth is not an issue, it is strongly recommended to use the MVI56E-MNETC. MVI56E-MNETR enhancements include local and remote configuration and diagnostics through the module's Ethernet port, and an on-board web server for access to module documentation and sample program files.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
ProSoft MVI56E-MNETR Network Interface Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas
Used to connect wellhead SCADA systems. It links ControlLogix controllers with Modbus TCP/IP-enabled flowmeters and pressure transmitters for real-time monitoring of pipeline pressure and flow.
Water & Wastewater
Used in pumping stations and water quality monitoring. It collects Modbus data from variable frequency drives (VFDs) and analyzers to automate chemical dosing pumps and aeration systems.
Power & Energy Management
Used for smart meter data acquisition. It centralizes data from numerous Modbus TCP multi-function power meters in substations to perform power consumption analysis and load control.
Automotive Manufacturing
Used for robotic workstation integration. It enables high-speed data exchange between the main ControlLogix system and Modbus TCP-supported welding robots or tightening controllers on assembly lines.
Chemical & Pharmaceutical
Used in batching systems and reactor monitoring. It connects explosion-proof Modbus weighing instruments and temperature control units to ensure precise chemical reactions and formulation.
Metallurgy & Steel
Used in blast furnace and heating furnace control. It gathers data from Modbus devices like infrared thermometers and gas analyzers to optimize heating processes and monitor emissions.
When using the MVI56E-MNETR module, it is critical to isolate the physical network to prevent broadcast storms, plan backplane I/O data blocks properly to avoid bandwidth limits, strictly control client connections to prevent timeouts, and constantly monitor status words and error codes in the PLC program to establish robust reconnection and fault-tolerant mechanisms.
Alternative Names
Alternative Names
MVI56E MNETRMV156E-MNETR
Technical notes
Technical notes
The ProSoft MVI56E-MNETR is an enhanced Modbus TCP/IP Client/Server Communication Module explicitly designed for the Rockwell ControlLogix platform. Its core advantage lies in its Reduced Data Block technology, which heavily compresses backplane I/O swap to just 42 words, making it ideal for remote I/O racks and PLC logic redundancy systems connected over ControlNet or EtherNet/IP. Featuring a 10,000-word internal database, it supports high-concurrent multi-connections and Hot-Swapping (RIUP). It also provides an on-board web server and Mini-USB for effortless local and remote diagnostics, allowing the ControlLogix processor to interface easily and efficiently with various third-party Modbus TCP/IP devices.
It is an enhanced Modbus TCP/IP communication module from ProSoft for ControlLogix PLCs, where the suffix
What is the purpose of the R (Reduced Data Block) in MVI56E-MNETR?
It limits the backplane I/O swap data block to 42 words, allowing the module to be installed in remote I/O racks connected via ControlNet or Ethernet, or used in PLC redundancy systems.
How to use products like MVI56E-MNETR?
Insert it directly into a ControlLogix PLC rack, configure network parameters using ProSoft Configuration Builder (PCB) software, and import the AOI (Add-On Instruction) in Studio 5000.
What is the difference between MVI56E-MNETR and the standard MVI56E-MNET?
The standard version occupies 250 words of backplane data and cannot be used in remote racks, while the MVI56E-MNETR optimizes the data block size, specifically designed for remote racks and logical redundancy.
How many data registers does MVI56E-MNETR support internally?
The module contains an internal virtual Modbus database holding up to 10,000 words to buffer data between the PLC and Ethernet devices.
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