AEG PV.500-MH Benutzerhandbuch

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Protect PV.500-MH Operating Instructions 
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7 Interfaces 
PV power stations are usually monitored from a central location. 
Alongside the PV cells, the inverter is a key component of a power 
station, which is why various communication interfaces are availa-
ble as standard. 
These include relay contacts and optocouplers, as well as various 
serial interfaces with protocols for integration into higher-level 
monitoring systems. 
To facilitate PV power station monitoring, AEG also offers relevant 
additional components that are adapted for use with inverters and 
PV generators. This enables the client to monitor an entire PV 
power station from a central location easily and reliably. 
7.1 Communication 
Interface 
The photovoltaic inverter is equipped with a central communication 
unit, a "MultiCom CCC interface". 
As well as performing various other functions, this unit facilitates 
communication between PV inverters and higher-level monitoring 
systems. 
A special system of central monitoring via the Internet can be real-
ised using AEG monitoring components such as "PV.LoG". The 
connection between the inverter and PV-LoG has been optimally 
adapted for monitoring and management purposes and is estab-
lished via the Modbus protocol. If you have any further questions, 
please contact your supplier. 
7.1.1 General 
Two separate potential-free serial interfaces are provided as 
standard for the purpose of establishing communication connec-
tions. One interface – port X2 – is assigned the AEG-specific pro-
tocol CBSER and is used both locally and remotely for correspond-
ing service tools. The other one – port X5 – supports the Modbus 
protocol and enables the PV inverter to be integrated into higher-
level monitoring and control systems with ease. This port can be 
switched over from RS232 to RS485. 
An external CAN bus provides a further connection option, which 
can be used for monitoring via a remote panel. 
The MultiCom CCC interface can be found on the pivot inside the 
DC/AC cabinet (item A29.1; see the assembly diagram). 
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