ALSTOM MAVS01L1AB0751D Communication Module

Powerful Programming Capability
It offers rich engineering configuration languages, including ladder logic, function block diagram, etc., and has strong custom logic creation ability, which can be used to implement complex control algorithms and complex floating-point calculations.

Optional System Redundancy
Provides options to customize system redundancy levels. By balancing upfront costs and unplanned downtime, it ensures the required system availability and enhances system reliability and stability.

Excellent Batch Processing Capacity
With modular batch processing functions, it can economically and efficiently handle simple to complex batch processing applications, meeting batch processing needs in different industrial scenarios.

Diverse Communication Interfaces
As part of PAD (possibly a specific type of controller), it has at least three communication interfaces, such as serial ports, CAN, and Ethernet interfaces, facilitating data transmission and communication with other devices. It supports multiple communication protocols, enabling connection and interaction with devices from different manufacturers.

Multi-channel Design: The module is equipped with 3 independent communication interfaces (typically RS-232/RS-485 serial ports, CAN bus, and Ethernet), each of which can connect to different types of devices (such as PLCs, sensors, and host computers) simultaneously.

Electrical Isolation: The interfaces adopt photoelectric isolation technology with an isolation voltage of over 2500Vrms to prevent electrical interference between different devices and ensure stable signal transmission.

Protocol Encapsulation/Resolution: The module has built-in multiple protocol stacks (such as Modbus RTU/TCP, CANopen, Profibus DP, etc.), which can encapsulate or resolve received data frames according to the protocols supported by target devices.

Data Cache: Equipped with a large-capacity FIFO cache (typically 8KB–16KB) for temporary storage of data to be sent or received, avoiding data loss.

Protocol Mapping Engine: Through configuration tools (such as ALSTOM's dedicated software), data mapping relationships between different protocols can be defined. For example:

Real-time Conversion Logic: Adopts hardware-accelerated protocol conversion algorithms to ensure millisecond-level response time, meeting industrial real-time control requirements.

Data Type Conversion: Supports automatic conversion of data types between different protocols (such as integer → floating point, bit → byte).

Address Mapping Table: Built-in address mapping database, allowing customization of mapping rules via configuration files or web interfaces.

Master-Slave Polling: For master-slave protocols like Modbus and Profibus, the module acts as the master station to poll slave devices at a preset cycle, collect data, and update the cache.

Interrupt Triggering: Supports the interrupt mechanism of the CAN bus. When a specific event occurs (such as a sensor threshold alarm), the module immediately sends data to the target device.

Dynamic Bandwidth Allocation: Dynamically adjusts bandwidth allocation based on the priority of different communication tasks (e.g., emergency control commands > ordinary data collection).

Collision Detection and Handling: Adopts CSMA/CD (Carrier Sense Multiple Access/Collision Detection) mechanism on shared media like the CAN bus to avoid data collisions.

Link Status Monitoring: Real-time monitor the connection status of each communication interface (such as packet loss rate, signal strength).

Error Counter: Record anomalies such as CRC check errors and frame format errors, and support fault code reporting.

Hot Standby Switchover: Supports dual network redundancy (such as primary and standby Ethernet links), automatically switching to the standby link when the primary link fails, with a switching time <50ms.

Data Synchronization: In redundancy mode, real-time synchronize data caches between primary and standby modules to ensure no data loss during switching.

Web Interface: Access the module's IP address via a browser for visual configuration through a built-in web server.

Configuration File Import: Support importing predefined mapping rules from CSV or XML files for batch deployment.

Firmware Upgrade: Support remote firmware upgrade via TFTP or FTP without on-site maintenance.

Remote Monitoring: Send module status information (such as temperature, memory usage) to the host computer via SNMP or dedicated protocols.

Industrial IoT Gateway: Connect field Modbus devices to cloud MQTT platforms.

Heterogeneous System Integration: Achieve data intercommunication between Siemens PLCs (Profibus) and ABB frequency converters (CANopen).

Distributed Control Systems: Serve as sub-stations for real-time data exchange with master station systems in railway, power, and other fields.