Ammonit Wind Farm Monitoring Systems (SCADA)

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SCADA wind farm monitoring with Ammonit Meteo-40 data loggers

Once the wind farm is set up and running, its best performance has to be ensured. To do so, it is essential to monitor and check its operation. Meteo-40 can easily be integrated in SCADA (Supervisory Control and Data Acquisition) sys-tems to provide reliable comparative meteorological data. Considering the measurement data recorded by Meteo-40, for example, predictions about the annual energy production of the wind farm can be verifi ed. Meteo-40 records measurement data, which is used by wind farm operators and investors, as well as for forecasting reasons.

With its confi gurable Modbus Register Map Meteo-40 is designed for operation in most existing SCADA systems, e.g. Enercon, Gamesa, Alstom. Meteo-40 data loggers are compatible with all commercial SCADA packages on the market, which are based on Modbus protocol. Additionally, Meteo-40 can be integrated in many other systems by using adapting gateways, e.g. CAN-Bus. The necessary parameters are confi gured via the user-friendly Meteo-40 web interface.

Advanced technology for convenient operation.

Your advantages of using Ammonit Meteo-40 data loggers for SCADA applications

Restricted data access for defi ned IP address by Modbus TCP security.

Data transmission via standard proto-cols Modbus TCP/IP and Modbus RTU.

Confi gurable Modbus Register Map for data retrieval.

Communication via Ethernet (TCP/IP) or RS485.

Ammonit Meteo-40 data loggers are compatible with most existing SCADA systems.

High accuracy according to industry standard IEEE 754 fl oating-point values.

Intuitive web interface for confi guration.

Powerful LinuxTM computer for data interpretation.

Confi gurable Modbus Endian-ness for SCADA server.

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SCADA Server Operation Center

Ammonit Wind Farm Monitoring Systems (SCADA)

Convenient implementation of Meteo-40 in your SCADA system

In order to install the data logger in a SCADA system, it has to be connected via RS485 or Ethernet (TCP/IP) to the wind farm network. Meteo-40 uses the standard protocols Modbus TCP/IP and Modbus RTU for data transmission. The measurement data can conveniently be retrieved via the Modbus Register Map.

You can easily enter SCADA details via the Me-teo-40 web interface. After having selected the SCADA protocol and entering the required pa-rameters, the Modbus Register Map has to be confi gured.

Live data of all active channels and switches as well as statistical data can be accessed. By editing the Modbus register map, you can con-veniently assign register numbers to each value. All entries are checked for plausibility. For the SCADA client, only the values with assigned reg-ister number are available.

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Meteo-40 and Modbus

Measurement values are represented as single precision IEEE 754 fl oating-point numbers, which are stored in two subsequent 16-bit Modbus registers. Date/time values, i.e. year, month, day, hour, minute, and second, are repre-sented as decimal values, which are stored in one 16-bit Modbus register each.

With regard to the editable Modbus register map, live data of all active channels and switches as well as statistical data can be collected. The following statistics are available:

• Average (scalar or vectorial)• Minimum• Maximum• Standard deviation• Median• Count

Modbus Endianness for SCADA serverYou can conveniently confi gure the Meteo-40 endianness via its user-friendly web interface.

Modbus register address interpretationIn order to confi gure the Meteo-40 register tables, you only have to defi ne unique register addresses to the se-lected data.

User-friendly and to the point for more effi ciency.

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Activate SCADA server

SCADA protocolModbus RTU

TCP port502

Allowed client IP address

Modbus unit id1

RS-485 slave speed9600 bps

RS-485 slave data format8N1

Statistic interval10 min

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Connection: Ethernet,Tunnel

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Date/time: 2013-08-06 09:52:33 UTC+01:00

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Two Registers (32-bit) LiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLiveLive Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr.Avr. StdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDevStdDev Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min.Min. Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max.Max. SumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSumSum MedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianMedianTop level main horizontal anemometer, Wind Speed (m/s) 1 71 281 211 141

Top level main vane, Wind Direction (°) 17 87 297 227 157

Main temperature sensor / hygrometer, Humidity (%) 37 107 317 247 177

Main temperature sensor / hygrometer, Temperature (°C) 29 99 309 239 169

Main atm. pressure sensor, Air Pressure (mbar) 33 103 313 243 173

Main rain gauge, Precipitation (mm) 111

A7 (V)

A8 (V)

A11 (V)

C1 (I)

C9 (I)

D1

Int. Voltage (V) 57 127

Int. Current (mA)

Int. Temperature (°C) 59 129

One Register (16-bit) Year Month Day Hour Minute SecondLive Date/Time 45 46 47 48 49 50

Statistics Date/Time 115 116 117 118 119 120

Switches

Modbus byte endiannessBig (most significant first)

Modbus word endiannessBig (most significant first)

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