Watt Price Driver (.Net)

The Watt Price Driver (.Net) provides access to daily electricity market results published at http://www.ote-cr.cz. Data is retrieved from the official SOAP API available at: https://www.ote-cr.cz/services/PublicDataService.

• Add a PLC with a running .Net Server for Mervis RT to the project, see Installation / update guide for .Net Server for Mervis RT
• Enable .Net drivers in the PLC configuration: PLC\Configuration ⇒ Common\Enable .NET Drivers: true

• Add a Channel to the PLC, Protocol: Watt Price (.Net)

• Add a Library Device to the Channel: CzechRepublic\OTE\Watt Price 15-Minute Period (Array)

• The following parameters are preconfigured on the added device:
  • Price API Type: SOAP
  • Price API URI: https://www.ote-cr.cz/services/PublicDataService
  • Price API Time Zone: Europe/Prague
  • Date Shift Days: 0 (0 = today, -1 = yesterday, 1 = tomorrow, etc.)

• Data point mapping is done via Variable Identifier:
  • PriceInQH_0xx (e.g. PriceInQH_001) – price for the specific quarter-hour
  • PriceInQH – array of prices for the quarter-hours of the day
  • QuarterHoursInDay – number of quarter-hours in the day
  • PriceMinimum – minimum price
  • PriceMaximum – maximum price
  • PriceAverage – average price
  • PriceCurrent – current price
• Variables can be created and linked manually, or by using the Set Autogen function