General Specifications



Backward compatible with previous MVI56-MNETCR versions



Single-slot 1756 ControlLogix backplane compatible



10/100 Mbps auto crossover detection Ethernet configuration and application port



User-definable module data memory mapping of up to 5000 16-bit registers



CIPconnect-enabled network configuration and diagnostics monitoring using

ControlLogix 1756-ENxT and 1756-CNB modules



ProSoft Configuration Builder (PCB) software supported, a Windows-based

graphical user interface providing simple product and network configuration



Sample ladder logic and Add-On Instructions (AOI) are used for data transfer

between module and processor



4-character, alpha-numeric, scrolling LED display of status and diagnostics data in

plain English

– no cryptic error or alarm codes to decipher



ProSoft Discovery Service (PDS) software used to locate the module on the

network and assign temporary IP address



Personality Module - a non-volatile industrial-grade Compact Flash (CF) card used

to store network and module configuration for easy disaster recovery, allowing

quick in-the-field product replacement by transferring the CF card

Modbus TCP/IP Client (Master)

The MVI56E-MNETCR is a Client-only module that will operate on a local or remote

rack. This module was created to improve performance when controlling multiple

servers on a Modbus TCP/IP network.



Offers 30 Client connections with up to 16 commands each to talk to multiple

servers



Actively reads data from and writes data to Modbus TCP/IP devices, using MBAP

or Encapsulated Modbus message formats



Transmits Modbus Function Codes 1, 2, 3, 4, 5, 6, 7, 15, and 16



ControlLogix processor can be programmed to use special functions to control the

activity on the Client by actively selecting commands to execute from the command

list (Command Control) or by issuing commands directly from the ladder logic

(Event Commands)

Functional Specifications



Modbus data types overlap in the module's memory database, so the same data

can be conveniently read or written as bit-level or register-level data.



Configurable floating-point data movement is supported, including support for



Special functions (Event Commands, Command Control, status, etc.) are supported

by message transfer (unscheduled) using the MSG instruction



Configurable parameters for the Client including a minimum response delay of 0 to

65535 ms and floating-point support



Supports up to 30 Clients with up to 16 commands for each Client



Error codes, counters, and module status available from module memory through

the Clients, or through the ladder logic and controller tags in RSLogix 5000