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is a complete sensor packet which leaves nothing to be desired. With fieldSense
you are able to monitor everything of a photovoltaic plant – beginning at the
simple door contact of a concrete station and combiner box to the complex
current measurement of string in the DC sector. Furthermore you get information by monitoring components, which
have been unconsidered before. Data of transformers, inverter input/output, etc. may be logged by fieldSense.
Following behind some modules of the system:
is the central part of the fieldSense solution and is deployable
independently of applications in the entire park. The masterSense
module is a computer and optional kinds of sensors many be connected to it (e. g. temperature, irradiation,
potential-free contacts as door switches etc.). masterSense administrates the connected modules and
possesses the data via canBus.
is the sensor for current measurement. It measures with an
exactness of > 1.5 % and does not consume valuable solar
current in comparison to other systems. The modular setup enables an amplification of modules by
simply connecting further currentSense modules to the master Sense. In this way two strings up to
twenty strings (ten currentSense measuring modules) may be installed. currentSense modules are available
up to a measurement of 250 amp. Thus we are able to measure string currents as well as total lines.
 measures voltage of up to 1000 V DC and may be
implemented for all kinds of total lines. The voltSense module
may also be simply connected to the masterSense module.
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Further sensors are also easily connectable to digital or analog inputs of the master module and all
information is available at the data logger.
Further sensors are:
 Irradiation sensors in various versions: The irradiation is an
important indicator for photovoltaic plants. On one hand this
information is needed for reference measurement of a standardized comparative value. On the
other hand a long-term evaluation of the module degradation is given. radGuard is a standardized
irradiation sensor, which gives you the irradiation W/m² in digital form via canBus.
 Many people ask themself why they should install a wind sensor
for stationary solar plants? It's simple: of course there are multi-axle
module frames (Tracker, Mover). It's important to adapt the position to the wind velocity. Besides, the
wind velocity is also an indicator for sources of errors in case of failures.
 In the photovoltaic sector, a temperature sensor is essential:
The revenue depends essentially on the module and ambient
temperature. In addition fuses react unequally under different temperature conditions. Furthermore
inverters also operate depending on the temperature. We offer temperature sensors for installation
in the outskirt area in our sub-distributors, compact stations and for fastening on the modules. This is also
based on canBus.
Thievery is always a problem for open land plants. Many plants are even today not insurable
anymore. Here, we are working on a RFID based entrance and thievery control, which is
connected to a camera that ensures the monitoring of plants.
fieldLog - Logging in each performance category
fieldLog is the newest developments in the sector of data loggers.
The device, equipped with all usual interfaces, saves all data from
inverters, string currents and other sensors, which are produced in the field.
fieldLog may be implemented as component in the field or may be integrated to a complete operation
and maintenance system via the connection to fieldMonitor.
Supported Inverters
AEG, Conergy, Converteam, Danfoss, Diehl Ako, Emerson, Fronius, Ingeteam, Kaco, Kostal, Refu,
Satcon, Schneider Elektrik, Siemens, SMA, SolarMax.
The implementation of further manufacturers is possible at any time. Up to thirty inverters of
one manufacturer may be connected.
Installation
The installation of the communication with inverters is possible via serial interfaces RS485, RS422,
RS232 or LAN. The implementation of already installed weather stations is also possible (on demand).
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