ProSoft MVI56E-MNET/MNETXT module

ProSoft MVI56E-MNET/MNETXT module

Product Overview and Core Positioning

MVI56E-MNET/MNETXT is a single slot ControlLogix backplane compatible module that serves as a communication bridge between Rockwell Automation ControlLogix processors and Modbus TCP/IP devices. It supports both Modbus TCP/IP client (Master) and server (Slave) functions, enabling data exchange with Modicon programmable automation controllers (PAC) and various Modbus TCP/IP compatible instruments and devices.

The two models have completely identical functions, only applicable in different environments:

MVI56E-MNET: Targeting standard industrial control scenarios and meeting conventional environmental requirements;

MVI56E-MNETXT: specifically designed for Logix XT ™ Control platform design with conformal coating, capable of withstanding extreme temperatures and corrosive environments, suitable for harsh industrial scenarios such as chemical and outdoor equipment.

Core Features and Advantages

The module reduces the deployment and maintenance costs of industrial communication through its three core features of compatibility, integration, and ease of use, as follows:

Specific description of characteristic categories and core advantages

Backward compatibility is fully compatible with early MVI56-MNET modules, and can be upgraded without modifying existing ladder logic programs or module configurations, avoiding secondary development costs during upgrades and protecting historical investments

The integrated communication function of RSLogix 5000 can be achieved through RSLogix ™  The example additional instructions (AOI) or ladder logic files in 5000 enable seamless integration with the ControlLogix control system, reducing cross platform configuration complexity

Graphic configuration and diagnostic support for ProSoft Configuration Builder (PCB) software, enabling online/offline configuration through high-speed Ethernet ports; Built in CIPconnect ®  Technology can be used across EtherNet/IP through the 1756-ENxT/1756-CNB module ™/ ControlNet ™ Network remote management simplifies the configuration process, supports remote operation and maintenance, and reduces on-site debugging workload

ProSoft Discovery Service (PDS) tool is used for network discovery and IP management, which can quickly locate modules in the network and allocate temporary IPs to solve the problem of complex module IP configuration in industrial scenarios, improving deployment efficiency

Non volatile storage equipped with industrial grade Compact Flash (CF) "personality module", storage network and module configuration; When a module fails, simply transfer the CF card to complete the replacement, achieving a "plug and play" replacement and reducing system downtime

Intuitive display of 4-character Alpha Numeric scrolling LED screen, displaying module status in plain English IP、 Port information and errors (no obscure code); Paired with ERR/APP/OK three color LED indicator lights, faults can be quickly located, reducing the difficulty of operation and maintenance troubleshooting

Modbus TCP/IP communication capability

The module supports both Client (active initiating communication) and Server (passive receiving communication) modes, covering the bidirectional data exchange requirements between the control end and the device end in industrial scenarios. The specific specifications are as follows:

1. Modbus TCP/IP Server (Slave, server mode)

Connectivity: Supports independent connections between two types of ports, with a maximum of 10 connections per type of port

Service Port 502 (Standard MBAP Protocol);

Service Port 2000 (encapsulation protocol).

Support function codes: Function Code 1 (read coil), 2 (read discrete input), 3 (read hold register), 4 (read input register), 5 (forced single coil), 6 (pre-set single register), 8 (diagnostic), 15 (forced multi coil), 16 (pre-set multi register), 17 (report slave ID), 22 (mask write register), 23 (read/write register).

Data source: Module data can come from ControlLogix processors or other Modbus Server devices in the network (obtained through Client mode).

2. Modbus TCP/IP Client (Master, client mode)

Communication capability: 1 client connection, supports up to 100 instructions, can communicate with multiple server devices; Supports MBAP or encapsulated Modbus message format.

Support function codes: Function Code 1, 2, 3, 4, 5, 6, 7 (read abnormal status), 15, 16.

Control method: The ControlLogix processor can control client behavior in two ways:

Command Control: Actively select the instructions to be executed from the instruction list;

Event Commands: Directly issue commands through ladder logic.

3. Data processing characteristics

Memory Mapping: Supports user-defined data memory mapping for up to 5000 16 bit registers, meeting the needs of large capacity data exchange.

Data flexibility: Modbus data types can overlap in the module's memory database, and the same data can be read and written at the "bit level" or "register level"; Support floating-point data transfer (including Enron and Daniel) ®  Floating point format).

Software and hardware specifications

1. Hardware specifications

Specification category specific parameters

Backplane compatibility single slot 1756 ControlLogix backplane, supporting local rack and remote rack deployment

Backboard current load 5VDC: 800mA; 24VDC：3mA

Ethernet port (E1) 10/100 Base-T, RJ45 interface (compatible with CAT5 cable); Support automatic cross cable detection; Equipped with Link/Activity LED indicator light

Environmental parameters (operation) - MVI56E-MNET: 0 ° C~60 ° C (32 ° F~140 ° F);

-MVI56E-MNETXT: -25 ° C~70 ° C (-13 ° F~158 ° F) (protective coating+wide temperature design)

Environmental parameters (storage) -40 ° C~85 ° C (-40 ° F~185 ° F)

Impact resistance performance during operation: 30g; non operation: 50g

2. Functional specifications

Data transmission optimization: Transfer data at the maximum I/O image block size to improve throughput and update speed.

Module identification: Recognized as an "I/O module" (non communication module) in the ControlLogix processor, adapted to the system's native I/O management logic.

Special function support: Through the "block transfer code" in ladder logic, special operations such as module state reading, instruction control, and event instructions can be achieved.

Derivative models: Provide MVI56E-MNETR model (remote rack optimized version), support reducing data block size, and adapt to remote rack bandwidth limited scenarios.