SMA Sunny Island SI4.4M-12 User Manual
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SMA Sunny Island SI4.4M-12 User Manual

Modbus communication
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User Manual
Communication via SMA Modbus
SI4.4M-12 / SI6.0H-12 / SI8.0H-12 / SI4.4M-13 / SI6.0H-13 / SI8.0H-13
ENGLISH
SI-Modbus-BA-en-12 | Version 1.2

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Summary of Contents for SMA Sunny Island SI4.4M-12

  • Page 1 User Manual Communication via SMA Modbus SI4.4M-12 / SI6.0H-12 / SI8.0H-12 / SI4.4M-13 / SI6.0H-13 / SI8.0H-13 ENGLISH SI-Modbus-BA-en-12 | Version 1.2...
  • Page 2 It is the user's responsibility to determine whether the downloaded content is up to date and to comply with it. SMA Solar Technology AG shall not be held liable for any damage as well as any assumption of consequential costs for customer systems by SMA Solar Technology AG that may result from the user’s...

  • Page 3: Table Of Contents

    Parameters for power setpoint in parallel grid operation ................16 Setting the Power Setpoint in Parallel Grid Operation.................. 17 Power setpoint under SelfConsOnly and SelfCsmpBackup without SMA Energy Meter or SMA Home Manager 2.0 ..............................17 Power setpoint for single or single-cluster systems in stand-alone mode....... 19 System setup for power setpoint in stand-alone mode..................

  • Page 4: Information On This Document

    • Knowledge of and compliance with this document and all safety information Content and Structure of this Document This document names the possible applications of the SMA Modbus interface on the Sunny Island and, for an application example, describes the procedure when setting up this interface (for information on mounting, installation, commissioning, operation, configuration, troubleshooting, decommissioning of the Sunny Island see the operating...

  • Page 5: Typographies In The Document

    [Key] • Placeholder for variable components • Parameter WCtlHz.Hz# (e.g., parameter names) Additional Information For more information, please go to www.SMA-Solar.com. Title and information content Type of information Mounting, installation, commissioning, operation, configuration, troubleshooting Operating manual and decommissioning of the inverter "Modbus®...

  • Page 6: Safety

    Alterations to the SMA products, e.g., changes or modifications, are only permitted with the express written permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA Solar Technology AG shall not be held liable for any damage caused by such changes.

  • Page 7: Sma Grid Guard Code

    HTML file. It is also possible to enter the SMA Grid Guard code via Modbus. The input is made with values in hexadecimal. With an SMA Grid Guard code, only one person, communication device or software tool can log into the SMA product.

  • Page 8: System Requirements

    ☐ Required: Modbus master to establish a Modbus connection to the Sunny Island ☐ Recommended: SMA Data Manager M for reading of the Modbus registers of a multicluster system ☐ The SMA Data Manager M allows the querying of aggregated power and energy values as well as the state of charge of the entire multicluster system.

  • Page 9: Preparing Communication Via Modbus

    4 Preparing Communication via Modbus SMA Solar Technology AG 4 Preparing Communication via Modbus The following preparations must be made prior to the first use of the SMA Modbus interface. Procedure: 1. Commission the Sunny Island master device (see operating manual of the Sunny Island).

  • Page 10: Application Examples

    5.1.1 Reading of Modbus registers: system structure By means of the SMA Modbus interface various values of the Sunny Island can be read (see technical information "Modbus® parameters and measured values" of the Sunny Island). This includes, for example, operating states, current power values and set parameters.

  • Page 11: Reading Of Modbus Registers: Compatibility Overview

    5.2.1 Parameterization: system structure The second application example for the SMA Modbus interface is the setting of the parameters of end devices. Different from reading Modbus registers, there is no system-wide parameterization possible via the Modbus interface of the SMA Data Manager M. Parameter changes must be made individually on each master device in a multicluster system (see technical information "Modbus®...

  • Page 12: Parameterization: Compatibility Overview

    Power Specification 5.3.1 Power specification: system structure The third possible application of the SMA Modbus interface is the specification of the active power of the Sunny Island. Analogous to the parameterization, a system-wide power specification can be made via the SMA Data Manager M.
  • Page 13 5 Application Examples SMA Solar Technology AG Maximum usable power when specifying power via Modbus The maximum usable power when specifying power via Modbus depends on the system structure: • In a single-phase single system (individual device), the maximum usable power is the continuous rated power of the individual device (e.g., 6 kW for a Sunny Island 8.0H-13).

  • Page 14: Power Setpoint: Compatibility Overview

    5 Application Examples SMA Solar Technology AG 5.3.2 Power setpoint: Compatibility Overview Power setpoints via the Modbus in- Power setpoints via the Modbus inter- terface of the Sunny Island face of the SMA Data Manger M Sunny Island in parallel ● ○ grid operation (single- phase) Sunny Island in parallel...

  • Page 15: Power Setpoint For Single Or Single-Cluster Systems In Parallel Grid Operation

    6 Power setpoint for single or single-cluster systems in parallel grid SMA Solar Technology AG operation 6 Power setpoint for single or single-cluster systems in parallel grid operation System setup for power setpoint in parallel grid operation PV INVERTER UTILITY...

  • Page 16: Parameters For Power Setpoint In Parallel Grid Operation

    6 Power setpoint for single or single-cluster systems in parallel grid SMA Solar Technology AG operation The Sunny Island can be cyclically controlled via specification of the minimum and maximum active power. The originally configured operation mode (e.g. increased self-consumption) is carried out within the limits.

  • Page 17: Setting The Power Setpoint In Parallel Grid Operation

    SMA Energy Meter or SMA Home Manager 2.0 If no SMA Energy Meter or SMA Home Manager 2.0 is installed and the battery inverter is configured in the SelfConsOnly or SelfCsmpBackup operating mode, the battery inverter will report faulty communication with the metering device after commissioning.
  • Page 18 6 Power setpoint for single or single-cluster systems in parallel grid SMA Solar Technology AG operation Implement the following measures: • Deactivate increased self-consumption before specifying power setpoints via the Modbus interface. Set the parameter 40075: Rise in self-consumption switched on to 1130: No.

  • Page 19: Power Setpoint For Single Or Single-Cluster Systems In Stand-Alone Mode

    7 Power setpoint for single or single-cluster systems in stand-alone mode SMA Solar Technology AG 7 Power setpoint for single or single-cluster systems in stand-alone mode System setup for power setpoint in stand-alone mode PV INVERTER UTILITY GRID LOADS AC1 AC2...

  • Page 20: Parameters For Power Setpoint In Stand-Alone Mode

    7 Power setpoint for single or single-cluster systems in stand-alone mode SMA Solar Technology AG Parameters for power setpoint in stand-alone mode General external active power setpoint: Parameters Value 40679: Reverse-feeding into the utility grid permitted 1129: Yes 40210: Operating mode Active power setpoint...
  • Page 21 7 Power setpoint for single or single-cluster systems in stand-alone mode SMA Solar Technology AG Also see: • Parameters for power setpoint in parallel grid operation ⇒ page 16 • Requirements for power setpoints in stand-alone mode ⇒ page 19 User Manual SI-Modbus-BA-en-12...

  • Page 22: Assignment Tables

    Measured Values and Parameters Selected The following table contains a selection of the measured values and parameters provided by the Sunny Island via the SMA Modbus profile. These measured values and parameters are relevant for reading Modbus registers, for parameterization and for power specification.
  • Page 23 1077: Manual setting in W (WCnst) 1078: Manual setpoint in % of the nominal device power (WCnstNom) 1079: External setpoint (WCtlCom) This parameter can only be read or written if a logon has taken place using the SMA Grid Guard code. User Manual SI-Modbus-BA-en-12...
  • Page 24 8 Assignment Tables SMA Solar Technology AG Description/number codes Type Format Access 40679 Reverse-feeding into the utility grid permitted: TAGLIST 1129: Yes 1130: No 40705 Upper state of charge for reactivation of grid feed- FIX0 Value range: 0% to 90%...
  • Page 26 www.SMA-Solar.com...

This manual is also suitable for:

Sunny island si6.0h-12Sunny island si8.0h-12Sunny island si4.4m-13Sunny island si6.0h-13Sunny island si8.0h-13

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