Operation Procedure
Step 1 Submit an SN list over the WebUI.
1. Select Scan SN on the mobile phone app and collect the SN of each SUN2000 of the same PV array.
2. Select the PLC device on the Monitoring page. Then select SN List on the Networking Settings page.

3. Click Import and select the SN list to be imported.

4. Submit the SN list.

Step 2 Set the box-type transformer number and winding number of the PLC CCO module on the WebUI.
Set Box-typetransformer No.on the Running Param.page.

For a multi-split box-type transformer, the winding number depends on to which winding of the multi-split box-type transformer the SmartLoggerconnects.
Forexample, for a dual-split box-type transformer, setthe number of winding 1 on the low voltage side to 1, and the number of winding 2 to 2. The winding number ranges from 1 to 7, and 0 indicates an invalid winding number.Nowinding numberis required for a non-multi-split box-type transformer.
See the following figure.

Perform steps 1 and 2 for all PV arrays one by one in the PV plant, and then perform step 3.
Step 3 Synchronize the box-type transformer number and winding number of the PLC CCO module to all SUN2000s.
Afterall SUN2000s in the PV array connect to the SmartLogger, synchronize the box-type transformer number and winding number of the PLC CCO module to all managed SUN2000s over the SmartLoggerWebUI, asshown in the following figure.

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