PRODUCT INFORMATION
Product Overview
The Allen-Bradley MVI56E-MCM is a ControlLogix Modbus master/slave enhanced network interface module. It enables master and slave communication between a ControlLogix processor and Modbus RTU or ASCII devices. The module maps Modbus data directly as I/O data across the ControlLogix backplane. It contains a 10,000-word user-definable database memory mapping. Backward compatibility allows direct replacement of older MVI56 modules without modifying existing controller programs.
The module installs in a single slot of either a local or remote ControlLogix chassis. It draws 800 mA at 5 Volts DC and 3 mA at 24 Volts DC. A 10/100 MB Ethernet port provides network configuration and diagnostics with Auto Cable crossover detection. A four-character scrolling alphanumeric LCD displays diagnostic data and operating status in English. Conformal coating provides protection in harsh or caustic operating environments.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Weight | 0.56 lbs (0.26 kg) |
|---|
| Slot(s) | 1 |
|---|
| Rack Type | Local or Remote |
|---|
| Baud Rate | 110 baud-115.2 kbps |
|---|
| Node Address | 1-247 |
|---|
| Commands per Master Port | 325 |
|---|
| User-definable Module Data Memory Mapping | 10,000 Registers |
|---|
| Shock | 30g Operational |
|---|
| Backplane Current Load | 800 mA @ 5V DC |
|---|
TECHNICAL INFORMATION
Features
- Supports Modbus RTU and Modbus ASCII protocols in master or slave modes.
- Provides up to 325 commands per master port with node addressing from 1 to 247.
- Contains 10,000 registers of user-definable internal database memory mapping.
- Includes a 10/100 MB Ethernet port supporting Auto Cable detection for diagnostics.
- Features a four-character scrolling alphanumeric LCD displaying English diagnostic messages.
- Applies conformal coating to withstand harsh or caustic industrial environments.
- Supports Remove and Insert Under Power for maintenance in active chassis.
TECHNICAL INFORMATION
Applications
- Bidirectional Modbus RTU serial data exchange with ControlLogix processors.
- Interfacing Modbus ASCII field devices to ControlLogix control architectures.
- Integration of remote Modbus slave devices into local or remote ControlLogix chassis.
TECHNICAL INFORMATION
Connections / Interfaces
- Equipped with one 10/100 MB Ethernet configuration port with Auto Cable detection.
- Connects directly to the ControlLogix backplane across a single chassis slot.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module into any available slot within a local or remote ControlLogix chassis.
- Supports Remove and Insert Under Power procedures while the rack is operating.
- Maintain ambient operating temperatures between 0 and 60 degrees Celsius.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure module network settings and run diagnostics using the 10/100 MB Ethernet interface.
- Map Modbus communication data to ControlLogix backplane I/O through the internal memory database.
- Define up to 325 polling commands per master port for attached Modbus networks.
TECHNICAL INFORMATION
Compatibility
- Compatible with standard Allen-Bradley ControlLogix local and remote chassis.
- Offers backward compatibility to replace older MVI56 modules without altering existing controller logic.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- Serves as a direct backward-compatible replacement for earlier legacy MVI56 hardware.
- Existing ControlLogix controller programs do not require modification during module replacement.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with standard Allen-Bradley ControlLogix local and remote chassis. Offers backward compatibility to replace older MVI56 modules without altering existing controller logic.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley MVI56E-MCM?
It provides Modbus RTU or ASCII master and slave connectivity for ControlLogix processors.
Can the MVI56E-MCM replace older MVI56 modules directly?
Yes. Backward compatibility allows direct replacement without modifying the existing controller program.
Does the MVI56E-MCM support Remove and Insert Under Power?
Yes. The module supports Remove and Insert Under Power in ControlLogix chassis.
What are the backplane current requirements for this module?
The module requires 800 mA at 5 Volts DC and 3 mA at 24 Volts DC.
