QA EASTRON SDM230 Modbus Slave

⚡📟 QA EASTRON SDM230 Modbus Slave

QA EASTRON SDM230 Modbus Slave is a specialized application for reading values from a three-phase EASTRON SDM230 electricity meter. This version is designed for operation in Master-Slave mode, which enables connection of multiple devices on a single shared RS485 communication line.
The application does not communicate directly with the bus, but cooperates with the required superior application QA Modbus Master, which coordinates all operations and queries on the line.

💼 Commercial Presentation

Ideal solution for energy management in facilities where measurement at multiple locations is required (e.g. main distribution board, PV system and EV charger) using a single ModbusRTU bus.
The Modbus Slave version eliminates the risk of mutual interference between applications and ensures high data stability. In the system, the application acts as a standard device providing ready-made values (voltage, current, power, frequency, energy) ready for immediate use.

📊 Data Analysis and Processing

For clear visualization, working with measurement history and graphs, we recommend connection with SCADA Mervis.

🧪 TRIAL – Trial Version

Verify the functionality of EASTRON SDM230 module integration in your system.
The TRIAL version will unlock full functionality for 2 days.
Download here: ⬇️ Download trial version

⚖️ Advantages and Disadvantages of Modbus Slave Solution

✅ Advantages: Enables fully collision-free operation of multiple Slave-type devices on a single ModbusRTU communication line. Saves hardware (only one converter is needed) and clarifies network topology.
❌ Disadvantages: The frequency of data reading must be adjusted to the number of devices on the bus. The more devices on a single line, the longer the response time may be when reading all values.

⚙️ Key Features

• Master-Slave Architecture: Designed for systems with multiple Modbus devices on a single line.
• Operation Optimization: Ability to set different reading intervals for different groups of values (e.g. power every second, total energy once per hour).
• Modular Data Selection: Activate only those quantities (child devices) that you actually use.
• Easy Management: All configuration takes place within the application interface with binding to QA Modbus Master.

✨ Typical Uses

• Complex Monitoring: Monitoring multiple EASTRON meters (SDM230/630) on a single bus.
• Smart Buildings: Measurement of consumption of individual rental units or technological units.
• PV Systems and Smart Grids: Precise coordination of data on production and consumption for advanced load management.

🔌 Operating Requirements

• EASTRON SDM230 electricity meter with ModbusRTU communication.
• Installed superior application QA Modbus Master.
• ModbusTCP/ModbusRTU converter (for connecting the RS485 line with the control system).
• Set unique Modbus address for each device on the bus.

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