Technical FAQs

Ask a Question

How to import XML data into SPM or PME

Issue
A user would like to import XML data into the SPM or PME software.

Product Line
Power Monitoring Expert 7.2.x
StruxureWare Power Monitoring 7.0.x
Power Monitoring Expert 8.0

Environment
Virtual ION Processor XML Import module
  • Data has to be numeric (text / string is not a valid format)
  • Can only be performed in the VIP
Cause
Some third party data is in XML format and this data needs to be imported into PME.

Resolution
The XML Import module is needed to import XML data into PME.

The following example describes a scenario where a user is importing XML data from a file named "Data.xml" that contains the following content:

<?xml version="1.0" encoding="UTF-8"?>
<Meters>
     <Meter ID="1">
          <kWh>8</kWh>
          <kVARh>6</kVARh>
          <kVAh>10</kVAh>
     </Meter>
     <Meter ID="2">
          <kWh>20</kWh>
          <kVARh>5</kVARh>
          <kVAh>22</kVAh>
     </Meter>
</Meters>


Create an XML Import module in the VIP and configure the setup registers as:
          
  • URL: Specifies the location of the XML file (C:\Temp\Data.xml).
  • xPath Query 1…N: The xPath query is used to retrieve the data from the xml file; each query returns a single, numeric value.  The content of this register must match the XML element of the data you want to retrieve:
//Meters/Meter[1]/kWh/text()
//Meters/Meter[1]/kVARh/text()

//Meters/Meter[2]/kVAh/text()


Once the 'ReadNow' input register is pulsed, the data is read.  The following is what the output of XML Import module will look like:
          

 
Was this helpful?
What can we do to improve the information ?