Professional monitoring and controlling for decentralized large-scale PV plants

SMA Cluster Controller for medium-sized
plants up to 25 devices

Combined with highly efficient SMA inverters, the SMA Cluster Controller is the central communication unit for system monitoring, recording data and controlling large-scale PV plants.

Through a variety of analog and digital in- and outputs as well as fast data exchange via an Ethernet-based data interface (e.g., Modbus TCP), a wide range of applications can be realized, from feed-in management to sensor technology integration.

Users benefit from easy system configuration that is achieved with the integrated web server. In addition, there are infinite options for visualizing yields via the Sunny Portal connection. Alongside the standard solution for large-scale commercial PV plants equipped with up to 75 devices, SMA now also offers a version for small-scale commercial PV systems with up to 25 devices (available in select markets).

The SMA Cluster Controller is the professional system interface for power supply companies, direct marketers, service technicians and PV system operators.

Easy to Use

  • Central monitoring and control of string inverters
  • Standardized Modbus interface for use with superior communication devices


  • Compliance with national and international grid integration requirements
  • Integrated analog and digital sensor interfaces, Direct marketing active and reactive power set points


  • Optimized for industrial use thanks to its robust enclosure and high-quality components


  • Immediate e-mail notification in the event of a failure
  • Remote monitoring and maintenance via the integrated user interface and Sunny Portal

Version 1.03.23.R

Performance features:

The version 1.03.23.R solves many issues regarding system stability and system security. Therefore we strictly recommend to perform the update.

  • Optional configuration of analog outputs for the output of active and reactive power of the entire system
  • Enhanced modbus functionality for direct selling companies
  • Support of Sunny Island 3.0M/4.4M/6.0H/8.0H in the Cluster Controller (important measuring values and events are shown in Sunny Portal)
  • Significant optimization of stability ensure reliable upload to Sunny Portal and via FTP push

Miscellaneous changes

  • Visualization of the most important inverter parameters in Sunny Portal
  • General information on device types in CSV files (FTP push & USB drive)
  • In case no temperature sensor is connected, no rows for temperature data are to be implemented in the CSV file
  • Optimization of the block read of Modbus registers
  • Support of new SMA devices and country codes
  • Optimization of performance

Version 1.02.39.R (June 2015)

Performance features:

The version 1.02.39.R solves many issues regarding system stability and system security. Therefore we strictly recommend to perform the update.

  • Optimizing of the stability regarding FTP uploads
  • Reducing of automatic restarts
  • Optimizing of CSV data export
  • General optimizing of stability

Miscellaneous changes

  • Enhanced Sunny Portal visualization for systems with self-consumption (including SMA Energy Meter)
  • Enhanced Sunny Portal visualization for systems with grid management

Version 1.01.14.R (September 2014)

Performance features:

  • Additional modbus parameter for power limitation via direct marketing companies
  • Extended power limitation via analog input
  • Possibility of parallel power limitation via different sources
  • Processing of the minimum power in case of parallel inputs
  • Additional Watchdog signal for extended communication monitoring
  • Distribution of active power via analog output A3
  • Additional Modbus parameters with extended resolution of active and reactive power limitation

Miscellaneous changes:

  • optimizing of system stability
  • optimizing of transmission performance to Sunny Portal
  • optimizing of the modbus request in case of reactive power
  • optimizing of performance
  • optimizing of compatibility with SMA Fuel Save Controller

Version 1.00.41.R (May 2013)

Performance features:

  • General Improvements – Improvement of DHCP (Dynamic Host Configuration Protocol) client functionality

User Manual

User Manual - SMA CLUSTER CONTROLLER ClusterController-BA-en-15.pdf
  • Type: User Manual
  • Language: English (Worldwide)
  • Number: ClusterController-BA-en-15
  • Version: 1.5

Data sheet

SMA CLUSTER CONTROLLER - Professional monitoring and control for decentralized PV systems CLCON-10-DEN1645-V11web.pdf
  • Type: Data sheet
  • Language: English (Worldwide)
  • Number: CLCON-10-DEN1645-V11
  • Version: 1.1

Installation Guide

SMA CLUSTER CONTROLLER - Connected devices (Additional Sheet) ClusterController-IAU-xx-13.pdf
  • Type: Installation Guide
  • Language: International
  • Number: ClusterController-IAU-xx-13
  • Version: 1.3
Installation Manual - Replacement of SMA Devices in Systems with SMA Communication Products Geraeteaustausch-IA-en-21.pdf
  • Type: Installation Guide
  • Language: English (Worldwide)
  • Number: Geraeteaustausch-IA-en-21
  • Version: 2.1
Installation Manual - SMA CLUSTER CONTROLLER ClusterController-IA-en-15.pdf
  • Type: Installation Guide
  • Language: English (Worldwide)
  • Number: ClusterController-IA-en-15
  • Version: 1.5


SMA CLUSTER CONTROLLER - Firmware-Version 1.03.31.R
  • Type: Firmware
  • Language: International
  • Number: Cluster_Controller_FW_v1_03_31_R
  • Version: 1.03.31.R

Technical information

SMA SPEEDWIRE FIELDBUS - Technical Information Speedwire-TI-en-11.pdf
  • Type: Technical information
  • Language: International
  • Number: Speedwire-TI-en-11
  • Version: 1.1
Technical Information - Direct Marketing Interface Direktvermarktung-TI-en-10.pdf
  • Type: Technical information
  • Language: International
  • Number: Direktvermarktung-TI-en-10
  • Version: 1.0
Technical Informationn - Control of the Active Power Feed-In at the Grid-Connection Point with the SMA CLUSTER CONTROLLER Wirkleistung_NAP_CC-TI-en-11.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: Wirkleistung_NAP_CC-TI-en-11
  • Version: 1.1
Technical Information - Zero Risk with Zero Export ZeroRiskwithZeroExport_TI-en-11.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: ZeroRiskwithZeroExport_TI-en-11
  • Version: 1.1
Technical Information - SMA CLUSTER CONTROLLER Modbus® Interface ClusterController_MODBUS-TI-en-17.pdf
  • Type: Technical information
  • Language: International
  • Number: ClusterController_Modbus-TI-en-17
  • Version: 1.7
Technical Information - Plant Communication in Large-Scale PV Power Plants SC-PO-TI-en-34.pdf
  • Type: Technical information
  • Language: English (Worldwide)
  • Number: SC-PO-TI-en-34
  • Version: 3.4

Quick reference guide

Quick Reference Guide for Commissioning - SMA CLUSTER CONTROLLER ClusterController-IS-en-12.pdf
  • Type: Quick reference guide
  • Language: English (Worldwide)
  • Number: ClusterController-IS-en-12
  • Version: 1.2

Manufacturers Declaration

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