RS485

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EMU Professional II 3/5 Modbus

3-phase power meters with RS485 Modubs RTU interfaces are essential tools for accurately measuring and energy management in industrial and commercial settings. Our 3-phase power meter EMU Professional II 3/5 Modbus is designed to measure current using current transformers with a ratio of 5A or 1A.It is MID (Measuring Instruments Directive) certified, meaning it is suitable for billing and metering purposes. Features Bidirectional three-phase power meter with RS485 interface RS485 Modbus RTU interface 3x230/400V Current transformer /5 and /1A MID B+D, for billing purposes Accuracy class B (1%) RS485 Modbus RTU interface The built-in RS 485 Modbus RTU interface is protected against dirt and manipulation. Modbus power meter readings Active energy consumption (kWh) and supply (kWh) Reactive energy consumption (kvarh) and supply (kvarh) Active power (kw) Reactive power (kvar) Apparent power (kVA) Current (A) Frequency (Hz) Number of voltage failures LCD-Display Reading and setting parameters is user-friendly by a 38x28 mm graphic LCD display with LED backlight. This provides excellent visibility of numbers and letters.Display language e.g. english or german can be selected by the keys. Power meter configuration Touch-sensitive control buttons are used for configuration. A sealable service button must be pressed for each configuration change.The control buttons are used to configure the RS485 Modbs address and the baud rate. Modbus baud rate: Via keys or Modbus Modbus primary address: Via keys or Modbus Modbus address: Via keys or Modbus RS 485 power meter configuration ex factory Modbus address: 000 S0 pulse output: 1'000 Impulse/ 40 ms Manufacturer The 3-phase RS485 power meter meter is produced in Switzerland by EMU Electronic Ltd.More information: https://www.emuag.ch In summary, our 3-phase power meter EMU Professional II 3/100 Modbus is a reliable and precise energy monitoring solution that is suitable for billing and metering purposes. With its advanced features and easy integration, it is the ideal choice for industrial and commercial energy management using RS485 Modbus communication.

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EMU Professional II 3/100 Modbus

3-phase power meters with RS485 Modubs RTU interfaces are essential tools for accurately measuring and energy management in industrial and commercial settings. Our 3-phase power meter EMU Professional II 3/100 Modbus is designed for direct connection up to 100A and comes with MID (Measuring Instruments Directive) certification, making it suitable for billing and metering purposes.The 3-phase bidirectional power meter EMU Professional II 3/100 Modbus for DIN rail mounting features a built-in RS 485 Modbus RTU interface and is suitable for energy management as per ISO 50001 and energy cost billing. Features Bidirectional three-phase power meter with RS485 interface RS485 Modbus RTU interface 3x230/400V Direct connection up to 100A MID B+D, for billing purposes Accuracy class B (1%) RS485 Modbus RTU interface The built-in RS 485 Modbus RTU interface is protected against dirt and manipulation. Modbus power meter readings Active energy consumption (kWh) and supply (kWh) Reactive energy consumption (kvarh) and supply (kvarh) Active power (kw) Reactive power (kvar) Apparent power (kVA) Current (A) Frequency (Hz) Number of voltage failures LCD-Display Reading and setting parameters is user-friendly by a 38x28 mm graphic LCD display with LED backlight. This provides excellent visibility of numbers and letters.Display language e.g. english or german can be selected by the keys. Power meter configuration Touch-sensitive control buttons are used for configuration. A sealable service button must be pressed for each configuration change.The control buttons are used to configure the RS485 Modbs address and the baud rate. Modbus baud rate: Via keys or Modbus Modbus primary address: Via keys or Modbus Modbus address: Via keys or Modbus RS 485 power meter configuration ex factory Modbus address: 000 S0 pulse output: 1'000 Impulse/ 40 ms Manufacturer The 3-phase RS485 power meter meter is produced in Switzerland by EMU Electronic Ltd.More information: https://www.emuag.ch In summary, our 3-phase power meter EMU Professional II 3/100 Modbus is a reliable and precise energy monitoring solution that is suitable for billing and metering purposes. With its advanced features and easy integration, it is the ideal choice for industrial and commercial energy management using RS485 Modbus communication.

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MID and UK CA Approved Power Meters with RS485 Modbus Interface

When it comes to energy management and billing, accurate and reliable metering is crucial. One of the most popular communication protocols for power meters is Modbus, and specifically, the RS485 variant of the protocol. In this article, we will discuss what Modbus is, its different variants, and the advantages of using RS485 Modbus power meters for energy management and billing.

What is Modbus?

Modbus is a widely used industrial communication protocol that enables communication between different devices and systems. It was first developed in 1979 by Modicon (now Schneider Electric) for use with programmable logic controllers (PLCs). Today, it is used in a wide range of applications and industries, including power metering.

Modbus Variants

There are several variants of the Modbus protocol, each with its own advantages and use cases. The most common variants are:

Modbus RTU

Modbus RTU (Remote Terminal Unit) is the original variant of the protocol. It uses a binary serial communication format, which makes it efficient and easy to implement. It is typically used in industrial and building automation applications.

Modbus TCP

Modbus TCP (Transmission Control Protocol) is a newer variant of the protocol that uses TCP/IP as the transport layer. This allows for communication over Ethernet networks and the internet. It is typically used in applications where long-distance communication is required.

Modbus ASCII

Modbus ASCII (American Standard Code for Information Interchange) is similar to Modbus RTU but uses ASCII characters for the serial communication format. It is less efficient than RTU but is more human-readable, which can make debugging and troubleshooting easier. It is typically used in applications where human readability is more important than efficiency.

Advantages of RS485 Modbus Power Meters

There are several advantages to using power meters with RS485 Modbus interfaces for energy management and billing. Some of the most notable advantages include:

Widely Supported

Modbus is one of the most widely supported industrial communication protocols, which means that it is compatible with a wide range of devices and systems. This makes it easy to integrate power meters with other systems and devices.

Easy to Implement

Modbus is a simple and easy-to-use protocol, which makes it easy to implement in power meters. This can lead to cost savings and faster deployment times.

Highly Accurate

RS485 Modbus power meters are highly accurate and reliable, which is crucial for energy management and billing. This ensures that energy usage is accurately measured and billed, which can lead to cost savings for both the energy provider and the consumer.

Secure

Modbus is a secure protocol and it's variants have their own security layer. This ensures that data transmitted between power meters and other devices and systems is protected from unauthorized access and tampering.