AEG PV.500-MH manual Interfaces, 7.1Communication Interface, 7.1.1General

Protect PV.500-MH Operating Instructions

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.

7.1Communication 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.

7.1.1General

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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