AMR – MODBUS & MODBUS (RS-485) Systems
Modbus RS-485 is a serial transmission standard and open protocol used in utility applications such as electricity metering and is very common in process automation. It’s a two-wire, multi-point connection that uses different voltages across the wires to communicate serial data. RS-485 is a duplex communication system that allows multiple devices on the same bus to communicate in both directions, but it’s most often used in half-duplex mode with only a single communication line. The Modbus protocol has since evolved and now includes variants such as Modbus RTU, Modbus ASCII, and Modbus TCP/IP.
Modbus electricity metering systems, also known as Modbus power meters, can provide real-time data and remote-control capabilities. They can also support multiple communication protocols and offer accurate measurements for efficient energy management and reliable billing.
Modbus electricity meters can provide data such as:
- Energy (total and partial)
- Active power
- Voltage
- Current
- Frequency
- Power
The Energy meter Modbus protocol is also essential for the integration of energy data into higher-level systems such as SCADA (Supervisory Control and Data Acquisition) and building management systems. By communicating through the Modbus protocol, energy meters can seamlessly integrate with these systems, providing real-time energy data for monitoring and control.
Available Modbus Products include:
- Single Phase Modbus Electricity Meters
- Three Phase Modbus Electricity Meters
- Modbus Gateways
- Pulse Counters with Modbus RTU Interface
- Modbus Wi-Fi Bridge
