MVI56E-MCM
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Overview of Allen-Bradley MVI56E-MCM
The Allen-Bradley MVI56E-MCM is a Modbus Master/Slave enhanced network interface module developed by ProSoft Technology for ControlLogix processors. It supports both Modbus RTU and ASCII protocols and can operate with two independently configurable serial ports, enabling flexible integration across multiple Modbus networks. The module makes Modbus data accessible as input/output data to the ControlLogix processor and supports a comprehensive set of Modbus function codes, allowing robust communication with Modbus devices.
Key Features
- Supports Modbus RTU and ASCII protocols
- Two independently configurable serial ports, each configurable as Master or Slave
- Backplane compatible with ControlLogix racks (local or remote)
- Up to 325 commands per Master port, optimized polling to reduce communication overhead
- User-definable module data memory mapping with up to 10,000 16-bit registers
- LED display with 4-character alphanumeric, scrolling for status, diagnostics, and configuration
- 10/100 Base-T Ethernet port (RJ45) for network configuration and diagnostics with auto-crossover detection
- Operating temperature: 0°C to 60°C (32°F to 140°F)
- Storage temperature: -40°C to 85°C (-40°F to 185°F)
- Shock: 30 g operational, 50 g non-operational
- Vibration resistance: 5 g from 10 to 150 Hz
- Conformal coating available (MVI56E-MCMXT model) for harsh environments
Technical Specifications
| Model | MVI56E-MCM |
| Type | Modbus Master/Slave Enhanced Network Interface Module |
| Slot(s) | 1 |
| Backplane Current Load | 800 mA @ 5 V DC, 3 mA @ 24 V DC |
| Communication Ports | 2 serial ports (RJ45), 1 Ethernet port (10/100Base-T RJ45) |
| Baud Rate | 110 to 115.2 kbps |
| Node Address Range | 1 to 247 (software selectable) |
| Memory | Up to 10,000 16-bit registers for data mapping |
| LED Display | 4-character alphanumeric, scrolling |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Shock | 30 g operational, 50 g non-operational |
| Vibration | 5 g from 10 to 150 Hz |
| Humidity | 5 to 95% non-condensing |
Applications
The MVI56E-MCM is ideal for industrial automation environments requiring robust Modbus communication via ControlLogix controllers. It supports seamless data exchange for process control, SCADA systems, and industrial networks interfacing with Modbus RTU/ASCII devices.
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