Communications Parameters

Because of permission restriction, log in as Advanced User. Choose Settings > Wired Network to access the target page.

Figure 7-40 Setting wired network parameters

If the SmartLogger connects to the Internet through a router, note the following when setting wired network parameters:

• Set the gateway address to the IP address of the router.
• Ensure that the IP address of the SmartLogger is in the same network segment as the gateway address.
• Set the domain name server (DNS) address to the IP address of the router or obtain the DNS address from the network provider.

If the IP address is changed, you need to use the new IP address to log in to the system.

Because of permission restriction, log in as Advanced User or Special User. Choose Settings > Power Meter to access the target page.

Figure 7-42 Setting power meter parameters

• When the model of the connected power meter is in the Intelligent Power Meter Type drop-down list box, set the parameters as follows.

  Parameter	Description
  Intelligent Power Meter Type	Set this parameter to the corresponding meter model. Currently, the following meter models are supported: ABB A44, Acrel PZ96L, algodue UPM209, CHNT DTSU666, Elster A1800ALPHA, Janitza UMG103/UMG104/UMG604, Lead LD-C83, MingHua CRDM-830, Mitsubishi LMS-0441E, NARUN PD510, NetBiter CEWE, People RM858E, Schneider PM1200, SFERE PD194Z, Socomec COUNTIS E43, and Toshiba S2MS.
  Meter feedback output	Set this parameter based on whether the power meter needs to report the data of the grid-tied point.
  Voltage change ratio	Set this parameter to 1 when the power meter uploads the primary value. Set this parameter based on the actual transformer ratio when the power meter uploads the secondary value.
  Current change ratio
  Feedback Parameter	Set this parameter based on the parameter name to be reported.
  Start Current (mA)	Indicates the valid value range of signals carried by the analog output loop. The current range is less than or equal to the current range set in the AO specifications. Start Data corresponds to End Data.
  End Current (mA)
  Start Data	Indicates the valid value range of signals of Feedback Parameter. Set the two parameters as required. An excessive range results in low precision of the feedback while an insufficient range results in the incompleteness of the feedback.
  End Data

• If the connected power meter is of another model, set the parameters as follows.

  Parameter	Description
  Intelligent Power Meter Type	Set this parameter to Other.
  Read function code	Read holding register 03H and Read input register 04H are supported. Set this parameter based on the vendor's protocol.
  Read mode	Multiple read and Single read are supported.
  Word ordering	Big endian and Little endian are supported. Set this parameter based on the vendor's protocol.
  Meter feedback output	Set this parameter based on whether the power meter needs to report the data of the grid-tied point.
  Voltage change ratio	Set this parameter to 1 when the power meter uploads the primary value. Set this parameter based on the actual transformer ratio when the power meter uploads the secondary value.
  Current change ratio
  Signal NOTE: Signal-related parameters include Signal Name, Signal address, Number of Registers, Gain, Data Type, and Unit.	Set this parameter based on the vendor's protocol. NOTE: If the power meter can collect a certain signal, set Signal address to the address of the corresponding register. If not, set Signal address to 65535.
  Feedback Parameter	Set this parameter based on the parameter name to be reported.
  Start Current (mA)	Indicates the valid value range of signals carried by the analog output loop. The current range is less than or equal to the current range set in the AO specifications. Start Data corresponds to End Data.
  End Current (mA)
  Start Data	Indicates the valid value range of signals of Feedback Parameter. Set the two parameters as required. An excessive range results in low precision of the feedback while an insufficient range results in the incompleteness of the feedback.
  End Data

To set parameters correctly, ensure that the SmartLogger can connect to Huawei management systems, such as NetEco and FusionSolar, or a third-party management system.

Because of permission restriction, log in as Advanced User. Choose Settings > Management System to access the page.

Figure 7-43 Setting management system parameters

• Set Server to the IP address or domain name of the management system server.
• If the SmartLogger connects to the Huawei management system, retain the default value 16100 for Port number. If it connects to a third-party management system, set Port number based on the server port enabled in the third-party management system.
• Generally, Address mode is set to Comm. Address. If the devices connected to the three RS485 ports on the SmartLogger have duplicate addresses, Address mode must be set to Logical address.
• If SSL encryption is set to Disable, data will be transmitted without being encrypted, which may result in user data theft. Therefore, exercise caution when deciding to set SSL encryption to Disable.
• If Second challenge authentication is set to Disable, the second challenge authentication result will not be verified, which may result in user data theft. Therefore, exercise caution when deciding to set Second challenge authentication to Disable.
• Obtain the documents about security certificate from the management system.

Set Modbus TCP parameters for the SmartLogger to communicate with a third-party NMS.

Because of permission restriction, log in as Advanced User or Special User Choose Settings > Modbus TCP to access the target page.

Figure 7-44 Setting Modbus TCP parameters

• Modbus TCP is a universal standard protocol used to connect to a third-party management system. Because there is no security authentication mechanism, data transmitted by Modbus TCP is not encrypted. To reduce network security risks, the function of connecting to a third-party management system using Modbus TCP is disabled by default. This protocol can transmit the running data and control commands of PV plants, which may cause user data breach and control permission theft. Therefore, exercise caution when using this protocol. Users are liable for any loss caused by the use of this protocol to connect to a third-party management system (non-secure protocol). Users are advised to take measures at the PV plant level to reduce security risks, or use Huawei management system to mitigate the risks.
• To use this function, set Link setting to Enable(Limited) or Enable(Unlimited). If you select Enable(Limited), the SmartLogger can communicate with up to five third-party NMSs whose IP addresses are set under Modbus TCP. If you select Enable(Unlimited), the SmartLogger can communicate with all third-party NMSs with valid IP addresses.
• In most cases, set Address mode to Comm. Address. If the devices connected to the COM ports of the SmartLogger have duplicate communications addresses, you must set Address mode to Logical address.

Third-party devices that use the IEC103 interface protocol may be connected to PV plants. The SmartLogger can read the information about such third-party devices and upload the information to the NMS, enhancing the PV plant solution.

As Huawei inverter devices (such as SUN2000s) support protocols different from third-party devices that use standard IEC103 (such as box-type transformers, combiner boxes, and inverters), they cannot be connected in series on the same RS485 bus.

Mode for the SmartLogger to connect to the IEC103 device: When the SmartLogger connects to the NMS, it transparently transmits IEC103 device information to the NMS.

Because of permission restriction, log in as Advanced User. Choose Settings > IEC103 to access the target page.

Figure 7-45 Setting IEC103 parameters

• Third-party devices and Huawei devices must be connected to different ports of the SmartLogger. Otherwise, the communication will be abnormal.
• The value of IEC103 IP must be consistent with the IP address of the NMS.

• IEC104 is a universal standard protocol used to connect to a third-party management system. Because there is no security authentication mechanism, data transmitted by IEC104 is not encrypted. To reduce network security risks, the function of connecting to a third-party management system using IEC104 is disabled by default. This protocol can transmit the running data and control commands of PV plants, which may cause user data breach and control permission theft. Therefore, exercise caution when using this protocol. Users are liable for any loss caused by the use of this protocol to connect to a third-party management system (non-secure protocol). Users are advised to take measures at the PV plant level to reduce security risks, or use Huawei management system to mitigate the risks.
• The SmartLogger can connect to a maximum of five third-party NMSs.
• If the SmartLogger connects to a third-party NMS over the IEC104 protocol, IEC104 parameters must be correctly set to enable the third-party NMS to monitor the running status of devices connected to the SmartLogger.

Because of permission restriction, log in as Advanced User. Choose Settings > IEC104 to access the target page.

Figure 7-46 Setting IEC104 parameters

• When IEC104 data point tables that require forwarding are different, set Link setting to Enable(Limited). Set the data point tables to be forwarded in IEC104-1–IEC104-5 tabs.
• When IEC104 data point tables that require forwarding are the same, set Link setting to Enable(Unlimited). Set the data point tables to be forwarded in Basic Parameters tab.
• You can export an IEC104 configuration file in CSV format.

  After the IEC104 configuration file exported from the SmartLogger and the device type IEC104 information files delivered with devices are correctly configured on a third-party NMS, the third-party NMS will be able to monitor the devices connected to the SmartLogger over the IEC104 protocol.