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Changes for page 3. Metering Channels

Last modified by Iaroslav Platonov on 2026/06/08 09:57
From version 42.1
edited by Lana
on 2025/11/30 19:38
Change comment: Uploaded new attachment "Screenshot 2025-11-30 at 16.38.43.png", version {1}
To version 44.1
edited by Lana
on 2025/11/30 19:40
Change comment: Uploaded new attachment "Screenshot 2025-11-30 at 16.40.46.png", version {1}

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186 186  [[image:Screenshot 2025-11-30 at 16.37.47.png]]
187 187  
188 188  Figure 5.5. Creating custom formula
189 +
190 +As shown in Fig. 5.5, the custom formula creation window requires input of the formula name, an optional identifier code, and the formula expression. An example demonstrating the calculation of losses in cable lines is provided in Fig. 5.6.
191 +
192 +[[image:Screenshot 2025-11-30 at 16.38.43.png]]
193 +
194 +Figure 5.6. Calculation formula
195 +
196 +[[image:Screenshot 2025-11-30 at 16.39.09.png]]
197 +
198 +Figure 5.7. Using calculation formula
199 +
200 +Fig. 5.7 shows the application of the calculation formula:
201 +3*IM{Object identifier IM}.r_ohm_per_km*pow(agg("mean","{line current}","{Interval}"),2)*0.001, where:
202 +
203 +* **IM{Identifier of the IM object}. r_ohm_per_km **– reference to the value of the attribute with the code **" r_ohm_per_km " "** of the information model object
204 +* **Pow **– exponentiation
205 +* **Agg **is an aggregation function
206 +* **Mean **– average value for the time interval
207 +* **{line current} **– a link to the tag ID
208 +* **{Interval} **– data interval.
209 +
210 + The braces **{ }** contain the arguments that need to be entered in the data entry fields as in Fig. 5.7.
211 +
212 +=== 5.4. Downloading/Uploading calculated channels ===
213 +
214 +The** Downloading/Uploading configuration files** page (Settings > Configuration files) provides functionality for importing and exporting calculation metering channels using Excel files.
215 +
216 +
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