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The ProSoft MVI56E-MNETCR is a high-performance Modbus TCP/IP Enhanced Communications Module designed for seamless integration with the Rockwell Automation ControlLogix platform. This module enables a ControlLogix processor to interface with up to 30 simultaneous client connections and 20 server connections over an Ethernet network. The 'CR' designation signifies a reduced data block version, specifically optimized for high-speed I/O data exchange. It is a critical component for bridging high-level controllers with field devices such as power meters, variable frequency drives, and remote I/O in power generation, water treatment, and large-scale manufacturing environments.
This module is widely used in industrial automation for connecting ControlLogix systems to third-party Modbus TCP/IP devices. Common applications include data acquisition from power monitoring equipment, integration of variable frequency drives (VFDs), and interfacing with remote I/O stations in SCADA-managed architectures.
| Model | MVI56E-MNETCR |
| Module Type | Modbus TCP/IP Enhanced Network Interface (Reduced Block) |
| Backplane Current | 800 mA @ 5 VDC; 3 mA @ 24 VDC |
| Ethernet Port | 1 x RJ45 10/100 Base-T |
| Modbus Connections | 30 Client, 20 Server |
| Operating Temperature | 0 to 60 deg C |
| Storage Temperature | -40 to 85 deg C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Configuration | Web interface or ProSoft Configuration Builder (PCB) |
The MVI56E-MNETCR can be configured via its integrated web server or using the ProSoft Configuration Builder (PCB) software. It also supports Add-On Instructions (AOI) within the Studio 5000 environment for simplified integration.
The 'CR' suffix indicates that the module uses a reduced data block interface (100 words), which is specifically optimized for high-speed I/O data exchange and reduced backplane loading.

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