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Last modified by Iaroslav Platonov on 2026/06/08 10:08
From version 5.4
edited by Lana
on 2025/12/03 21:46
Change comment: There is no comment for this version
To version 6.2
edited by Lana
on 2025/12/03 21:51
Change comment: There is no comment for this version

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53 53  When metrologically significant files change, their checksum changes. Information about checksums is displayed on the "Services" tab of the "System Information" page. Checksums are calculated by **the sed_system** service using the MD5 algorithm. To display up-to-date information about checksums, click the "Update Information" button in the upper-right corner of the System Information page (System - Settings) - see Fig.3.1.
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55 +[[image:Screenshot 2025-12-03 at 18.47.38.png]]
56 +
57 +Fig. 3.1 – Updating information on checksums of metrologically significant files
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59 +**Data processing services**
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61 +The processing services receive the data coming from the message broker, process it, and write it to the database.
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63 +The data processing services contain a metrologically significant part the binary file "**sed_metrology_YYY.bin**" where YYY is the service identification name. Binary files "**sed_metrology_YYY.bin" **contains information about algorithms and mechanisms for calculating measured values and are used by the processing modules to directly perform their functions.
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65 +The Pre-calculated Parameter Calculation Service (sed_calc_arch service) additionally has a **sed_metrology_formulas.bin** file. The sed_metrology_formulas.bin file contains custom formulas for pre-calculations that have the "metrologically significant" attribute.
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67 +When metrologically significant files or formulas with a metrological significance attribute change, the checksum of the file changes. Information about checksums is displayed on the "Services" tab of the "System Information" page. Checksums are calculated by **the sed_system service **using the MD5 algorithm.
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69 +**Auxiliary Services**
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71 +Auxiliary services are designed to ensure that the main CENTO services perform their functions.
72 +
73 +The list of CENTO services and their brief description is given in Table 1. The composition of CENTO services for a particular system depends on the functions performed and is displayed on the "System Information" tab.
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75 +Table 1 – CENTO software components
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