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Wiki source code of 3. Metering Channels

Version 61.2 by Iaroslav Platonov on 2026/02/04 02:34
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Lana 60.1 1 = CONTENT =
Lana 3.2 2
Lana 58.1 3 {{toc/}}
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Lana 61.1 5 ----
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Lana 60.1 7 = 1. INTRODUCTION =
Lana 3.3 8
Iaroslav Platonov 61.2 9 (% style="font-size:16px" %)CENTO is a multifunctional software platform for data collection, processing, and display. This Guide contains a description of setting up metering of electricity, energy resources, as well as other types of metering.
Lana 3.3 10
Iaroslav Platonov 61.2 11 (% style="font-size:16px" %)It is assumed that the user, having read the instructions "User manual" and "Setup manual", is already familiar with the main elements of the interface and how to configure CENTO.
Lana 3.3 12
Lana 60.1 13 = 2. ELECTRICITY METERING =
Lana 3.4 14
Lana 60.1 15 == 2.1. Device setup ==
Lana 3.4 16
17 CENTO software can work with a variety of metering devices that have the ability to measure and store power and power profiles. The metering function is enabled by adding the metering protocol corresponding to the device on the **Device editing** page (Settings > Devices, tags, channels > Devices), then, similar to other polling protocols, the parameters of communication with the device (RTU address, TCP/UDP port, timeout and number of connection attempts) and scheduled polling parameters (cron of CENTO rules) are specified, to configure electricity metering, the file number is specified in the "File#" field,  which stores power and power profiles.
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Lana 21.2 19 We will consider the survey of historical data of interval values of accumulated electricity using the example of SATEC devices. For this purpose, the// SATEC (Modbus TCP)// protocol is used (see Fig 2.1).
Lana 4.2 20
Lana 23.2 21 [[image:Screenshot 2025-11-27 at 18.53.58.png||height="914" width="932"]]
Lana 4.2 22
23 Figure 2.1. Settings of the E/E metering protocol
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25 Setting up the E/E metering protocol contains the following fields:
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Lana 22.3 27 [[image:Screenshot 2025-11-27 at 18.56.14.png||height="63" width="404"]]
Lana 7.2 28
29 Selection of the accounting protocol from the drop-down list and its inclusion in the survey.
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Lana 22.2 31 [[image:Screenshot 2025-11-27 at 18.56.53.png||height="112" width="404"]]
Lana 7.2 32
33 Setting up a poll according to the Cron rule (there can be several) with set attempts and timeouts.
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Lana 22.2 35 [[image:Screenshot 2025-11-27 at 18.57.26.png||height="146" width="408"]]
Lana 9.2 36
37 Specifying the network address of the device and the port for the TCP connection.
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Lana 22.2 39 [[image:Screenshot 2025-11-27 at 18.57.54.png||height="96" width="93"]]
Lana 9.2 40
41 Serial number of the E/E metering data file in the device's memory (for devices of the Satec type).
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Lana 23.2 43 [[image:Screenshot 2025-11-27 at 18.58.26.png||height="80" width="144"]]
Lana 9.2 44
Lana 11.2 45 Device administrator password.
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Lana 22.3 47 [[image:Screenshot 2025-11-27 at 18.58.55.png||height="114" width="406"]]
Lana 11.2 48
49 Coefficients of conversion of interval values of readings/power (depends on the type of metering device, as well as on the type of connection (direct or with measuring transformers).
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Lana 22.3 51 [[image:Screenshot 2025-11-27 at 18.59.34.png||height="106" width="410"]]
Lana 11.2 52
Lana 13.2 53 Transformation coefficients of current and voltage transformers, meter coefficient.
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Lana 22.3 55 [[image:Screenshot 2025-11-27 at 19.00.09.png||height="88" width="217"]]
Lana 13.2 56
57 Specifying the TCP connection number for parallel polling of one device (for example, if the device is connected via a Modbus TCP/Modbus RTU converter, then the number of the trunk to which the device is connected is specified).
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Lana 22.4 59 [[image:Screenshot 2025-11-27 at 19.00.46.png||height="77" width="216"]]
Lana 13.2 60
Lana 15.2 61 Selection of energy/power profile.
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Lana 22.4 63 [[image:Screenshot 2025-11-27 at 19.01.19.png||height="152" width="406"]]
Lana 15.2 64
65 Enabling/disabling the time synchronization of the device on the CENTO side, with the configured period of maximum time correction in seconds, as well as the permissible deviation.
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Lana 22.4 67 [[image:Screenshot 2025-11-27 at 19.01.49.png||height="240" width="133"]]
Lana 15.2 68
Lana 17.2 69 Enabling/disabling a particular channel.
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Lana 23.2 71 [[image:Screenshot 2025-11-27 at 19.02.20.png||height="68" width="285"]]
Lana 17.2 72
73 Serial number of the record (metering channel) in the E/E metering data file in the device's memory (for devices of the Satec type).
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Lana 23.2 75 [[image:Screenshot 2025-11-27 at 19.02.51.png||height="100" width="291"]]
Lana 17.2 76
77 When this option is enabled, the specified numbers of energy and power files are not taken into account.
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Lana 23.2 79 [[image:Screenshot 2025-11-27 at 19.03.24.png||height="101" width="98"]]
Lana 19.2 80
81 Enabling/disabling reading logs from the device.
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Lana 23.2 83 [[image:Screenshot 2025-11-27 at 19.03.56.png||height="205" width="98"]]
Lana 19.2 84
85 Rounding of channels.
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87 Viewing and changing the metering parameters in the memory of the metering device is carried out in accordance with the instructions of the operating manual for this device.
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Lana 60.1 89 == 2.2. Setting up metering channels ==
Lana 21.2 90
91 Electricity meters often do not need to manually add channels to the list of tags, so all the settings are in the metering protocol.  The display of the used accounting channels from the protocol automatically appears on the **Tags, channels** tab, but with a ban on editing actions.
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93 [[image:Screenshot 2025-11-27 at 19.06.17.png]]
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95 Figure 2.2. Display of metering channels
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97 Clicking on the channel name or its ID, redirects to the **Device editing: editing** page, as shown in Fig. 2.1.
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Lana 21.3 99 The forms for filling in the fields for setting up electricity metering protocols are different and depend on the type/model of the device, instructions for working with the protocols can be described in different manuals and, if necessary, provided to the User.
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Lana 60.1 101 = 3. ENERGY METERING (COMING) =
Lana 21.3 102
Lana 60.1 103 == 3.1. Device Setup (Coming) ==
Lana 21.3 104
Lana 60.1 105 = 4. OTHER TYPES OF METERING =
Lana 22.1 106
Lana 23.2 107
108 In addition to metering electricity and energy resources, the CENTO software supports tracking of operating time, emissions and discharges, as well as product accounting.
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110 Metering can be implemented not only on the basis of specialized metering devices, but also performed in the CENTO software itself on the basis of tags (real-time data). For example, using information about the state of the equipment (0 - disabled and 1- enabled), the user can set up a metering channel that will calculate the operating time of the equipment. And using the processing functions (see Section 5 of this manual), you can form metering channels (increments) from the current capacity, instantaneous flow or an ever-growing meter.
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Lana 60.1 112 = 5. CALCULATED CHANNELS =
Lana 24.2 113
114 If the device installed at any connection does not have the function of storing interval values of electricity/power in the memory, as well as archived values for other types of metering, CENTO has the function of generating interval values from tags (real-time data). In order to create a metering channel, go to Settings > Devices, tags, channels > Calculation channels (see Fig. 5.1).
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116 [[image:Screenshot 2025-11-30 at 16.26.53.png]]
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118 Figure 5.1. List of calculated channels
Lana 25.2 119
Lana 60.1 120 == 5.1. Channel from tag ==
Lana 25.2 121
Lana 27.2 122 To create a new metering channel from real-time data (tags), click the button [[image:Screenshot 2025-11-30 at 16.28.39.png||height="18" width="92"]]
Lana 25.2 123
Lana 27.2 124 Then the **Channel from tag:**
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126 **editing** page opens. When adjusting an already created metering channel, the page **Channel from tag: editing** will open (see Fig.  5.2).
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Lana 56.1 128 [[image:Screenshot 2025-11-30 at 16.29.45.png||height="596" width="724"]]
Lana 29.2 129
130 Figure 5.2. Channel from tag: editing
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132 On the page that opens, specify the name of the channel, its ID (it is written automatically when created, and it does not change for the existing one) and the Code (an optional field), the category of the parameter – electricity/energy resources/technology/emissions/diagnostics/time and the corresponding categories of units of measurement, whether the metering channel has metrological significance, and also fill in the fields:
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Lana 56.1 134 [[image:Screenshot 2025-11-30 at 16.30.29.png||height="55" width="219"]]
Lana 29.2 135
Lana 31.2 136 ID of the tag on the basis of which the calculation channel will be created.
Lana 29.2 137
Lana 56.1 138 [[image:Screenshot 2025-11-30 at 16.30.53.png||height="316" width="483"]]
Lana 29.2 139
Lana 31.2 140 Selection of the device in the object tree from which the specified tag ID is taken.
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Lana 56.1 142 [[image:Screenshot 2025-11-30 at 16.31.25.png||height="178" width="483"]]
Lana 31.2 143
144 Function for processing parameter values.
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Lana 56.1 146 [[image:Screenshot 2025-11-30 at 16.31.55.png||height="312" width="482"]]
Lana 31.2 147
Lana 32.2 148 Value aggregation interval.
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Lana 56.1 150 [[image:Screenshot 2025-11-30 at 16.32.28.png||height="153" width="478"]]
Lana 32.2 151
152 Processing the calculated channel with formula input.
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Lana 60.1 154 == 5.2. Calculated channel ==
Lana 32.2 155
Lana 35.2 156 To create a channel that processes the values of several connections, or interval values, for example, summing up electricity consumption by a group of consumers (total energy consumption) or calculating the balance of consumed energy, click the button on the **Calculated channels** tab (see Fig. 4.1), then click [[image:Screenshot 2025-11-30 at 16.33.58.png||height="22" width="116"]]
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158 When adjusting an already created metering channel, the **Settlement channel: editing** page opens (see Fig. 5.3).
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Lana 56.1 160 [[image:Screenshot 2025-11-30 at 16.34.28.png||height="540" width="739"]]
Lana 37.2 161
162 Figure 5.3. Metering channel: editing page
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164 On the page that opens, specify the name of the channel, its ID (it is specified automatically when created, but it does not change for the existing one) and the Code (an optional field), the category of the parameter – electricity/energy resources/technology/emissions/diagnostics/time and the corresponding categories of units of measurement, the object and device to which the parameter will be linked.
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166 In the **Template** field, specify the formula for processing the values of all parameters used in the calculation. The formula can use arithmetic operations, conditions, mathematical functions that are specified in [[image:Screenshot 2025-11-30 at 16.35.23.png||height="30" width="135"]] and the following variables for power channels:
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168 * ea_imp - energy A+
169 * ea_exp - energy A-
170 * er_imp - energy R+
171 * er_exp - energy R-
172 * pa_imp - power A+
173 * pa_exp - power A-
174 * pr_imp - R+ power
175 * pr_exp is the power of R-
176 * ra_imp - A+ readings
177 * ra_exp - A- readings
178 * rr_imp - R+ readings
179 * rr_exp - R- readings
180
Lana 60.1 181 == 5.3.  Calculated channels via Information Model ==
Lana 39.2 182
183 For calculation channels of the same type, it is possible to define custom formulas that operate based on Information Model objects and their attributes. In addition to tags and channels, the Information Model can also supply supplementary data (e.g., reference information). To create a template, click the create template button [[image:Screenshot 2025-11-30 at 16.36.34.png||height="27" width="26"]] as shown in Fig. 5.4.
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Lana 56.1 185 [[image:Screenshot 2025-11-30 at 16.37.01.png||height="114" width="566"]]
Lana 41.2 186
187 Fig. 5.4 – Creating a Formula Template
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Lana 56.1 189 [[image:Screenshot 2025-11-30 at 16.37.47.png||height="628" width="566"]]
Lana 41.2 190
191 Figure 5.5. Creating custom formula
Lana 43.2 192
193 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.
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Lana 56.1 195 [[image:Screenshot 2025-11-30 at 16.38.43.png||height="289" width="566"]]
Lana 43.2 196
197 Figure 5.6. Calculation formula
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Lana 56.1 199 [[image:Screenshot 2025-11-30 at 16.39.09.png||height="439" width="719"]]
Lana 43.2 200
201 Figure 5.7. Using calculation formula
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Lana 43.3 203 Fig. 5.7 shows the application of the calculation formula:
204 3*IM{Object identifier IM}.r_ohm_per_km*pow(agg("mean","{line current}","{Interval}"),2)*0.001, where:
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206 * **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
207 * **Pow **– exponentiation
208 * **Agg **is an aggregation function
209 * **Mean **– average value for the time interval
210 * **{line current} **– a link to the tag ID
211 * **{Interval} **– data interval.
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213 The braces **{ }** contain the arguments that need to be entered in the data entry fields as in Fig. 5.7.
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Lana 60.1 215 == 5.4. Downloading/Uploading calculated channels ==
Lana 43.3 216
Lana 57.1 217 The** Downloading/Uploading configuration files** page (Settings > Configuration files) provides functionality for importing and exporting calculation metering channels using Excel files.
Lana 43.3 218
Lana 56.1 219 [[image:Screenshot 2025-11-30 at 16.40.46.png||height="527" width="1219"]]
Lana 44.2 220
221 Figure 5.8. Excel file
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223 Fig. 5.8 shows an example of an Excel file with calculated metering channels, which allows adding new channels, as well as adjusting existing ones. All the necessary functions for entering formulas are available in formula reference interface, as well as in Table 5.1.
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225 Table 5.1. Functions used in formulas.
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227 |Function|Description|Example
228 |diff|Calculating increments from accrual (readings) by channel|diff([dev-2-214]) - calculation of increments from the cumulative total (readings) on channel 214 of device 2
229 |mean|Average Time Interval|mean by the ID10001 tag for a 1-hour time interval
230 |integral|Integral of Values|Integral by tag ID40011100 in a 1-hour time interval
231 |first|Indication at the beginning of the interval|first([ti50206_type5], 3600, 0, 0) – calculation of readings based on the ID50206 tag at the beginning of the interval, calculated every hour
Lana 44.3 232
Lana 60.1 233 = 6. RECEIPT OF ACCOUNTING DATA =
Lana 44.3 234
Lana 57.1 235 The** Analysis of the receipt of data** page is the same for all types of metering. It is described in details in the "User manual"
Lana 44.3 236
Lana 60.1 237 == 6.1. Manual polling ==
Lana 45.2 238
239 If it is necessary to re-acquire data from metering devices, a manual poll should be performed. To do this, navigate to the **Receipt of metering data** page (Analysis > Receipt of metering data). This action opens the **Analysis of the receipt of data** interface (see Fig. 6.1)
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Lana 56.1 241 [[image:Screenshot 2025-11-30 at 16.44.01.png||height="639" width="1295"]]
Lana 45.2 242
243 Figure 6.1. Analysis of the receipt of data
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Lana 47.2 245 In the device tree, select the required metering point, find the missing data profiles and click on the button[[image:Screenshot 2025-11-30 at 16.45.10.png||height="25" width="95"]]that instructs the polling service to request an archive from the selected device for the selected interval. After pressing the button, a message about the number of devices to be polled and the time interval will be displayed on the screen. If a message pops up that the operation may take a long time (see Fig. 6.2), it is recommended to reduce the number of devices or the scanning depth (see Fig. 6.3).
Lana 45.2 246
Lana 56.1 247 [[image:Screenshot 2025-11-30 at 16.46.01.png||height="180" width="436"]]
Lana 47.2 248
249 Figure 6.2. Message when the number of devices or the polling depth is exceeded.
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251 If the limit is not exceeded, a window pops up:
Lana 48.2 252
Lana 56.1 253 [[image:Screenshot 2025-11-30 at 16.46.40.png||height="175" width="439"]]
Lana 48.2 254
255 Figure 6.3. Confirmation of the start of the survey
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257 The **Refresh** button requeries the data from the database for the current view.
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Lana 60.1 259 == 6.2. Recalculation of calculated channels ==
Lana 48.2 260
Lana 50.2 261 In case of changes in the data used in the calculation channels or changes in the calculation formulas, it is necessary to recalculate the values of the calculated channels. This is performed in the **Analysis of the receipt of data** interface (Analysis > Receipt of metering data). The button [[image:Screenshot 2025-11-30 at 16.47.46.png||height="20" width="70"]] appears if the devices to which the calculated channels are bound are selected in the tree.
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263 If the data used in calculated channels or the calculation formulas themselves are modified, it is necessary to recalculate the values of the calculated channels. This operation is performed through the **Analysis of the receipt of data** interface (Analysis > Receipt of metering data). The recalculation button becomes available when the devices associated with the calculated channels are selected in the tree."
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Lana 56.1 265 [[image:Screenshot 2025-11-30 at 16.48.31.png||height="173" width="441"]]
Lana 50.2 266
Lana 50.3 267 Figure 6.4. Recalculation of channels
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269 At the end of the recalculation process, the information on the **Analysis of metering data** page (Analysis > Metering data) will be updated.
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Lana 60.1 271 = 7. ANALYSIS OF METERING DATA =
Lana 50.3 272
Lana 60.1 273 == 7.1. Viewing metering data ==
Lana 50.3 274
Lana 57.1 275 To view historical data on electricity/energy metering, select **Metering data** in the drop-down list of the **Analysis** menu. As a result, the** Analysis of data metering** page opens (see Fig 7.1 – Fig. 7.2).
Lana 52.2 276
Lana 56.1 277 [[image:Screenshot 2025-11-30 at 16.50.11.png||height="533" width="767"]]
Lana 52.2 278
279 Figure 7.1. Charts for electricity channels
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Lana 56.1 281 [[image:Screenshot 2025-11-30 at 16.50.35.png||height="533" width="767"]]
Lana 52.2 282
283 Figure 7.2. Charts for energy resources channels
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285 A more detailed description of this interface is described in the "User manual".
286
Lana 60.1 287 == 7.2. Metering data manual entry ==
Lana 56.1 288
289 With the appropriate rights, the User can make a manual entry of metering data. To do this, you hover the cursor over the desired cell in the table, perform a left click of the mouse and enter a new value, after which the save value icon appears on the right side of the input field [[image:Screenshot 2025-11-30 at 16.51.39.png]]. Press it or //Enter// on your keyboard, and the value goes to the CENTO database. For devices where only manual data entry is provided, CENTO has developed a procedure for filling the cells between two manual entries. If readings are recorded at 10:00 a.m. and then again at 8:00 p.m., the system automatically fills in the readings for all intermediate intervals. For electricity metering channels, the system additionally calculates and populates the corresponding energy and power values.
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291 Manual entry of credentials is also available using an .xlsx file.
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293 The **Download** button allows downloading the selected metering channels to the User's computer in .xlsx format. The downloaded file can be used for manual entry of metering data. To perform manual entry, open the file in the editor. Then enter new data in the fields, mark them **in bold** and save the file [[image:Screenshot 2025-11-30 at 16.52.15.png||height="25" width="66"]] in the CENTO interface. This opens a file upload window with a prompt for use (Fig. 7.3).
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295 [[image:Screenshot 2025-11-30 at 16.52.51.png||height="323" width="436"]]
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297 Figure 7.3. Uploading file
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299