{"id":81263,"date":"2026-02-26T21:34:23","date_gmt":"2026-02-27T03:34:23","guid":{"rendered":"https:\/\/www.arbin.com\/?p=81263"},"modified":"2026-03-04T02:19:44","modified_gmt":"2026-03-04T08:19:44","slug":"application-examples-of-user-defined-metavariables-mv_ud","status":"publish","type":"post","link":"https:\/\/www.arbin.com\/ko\/application-examples-of-user-defined-metavariables-mv_ud.html","title":{"rendered":"Application Examples of User-Defined MetaVariables (MV_UD)"},"content":{"rendered":"

In Arbin software, MV_UD<\/strong> (short for User-Defined Meta Variables<\/strong>) is a powerful tool for controlling battery testers. This article explains how to use MV_UD<\/strong> in Arbin MITS<\/span><\/span><\/span><\/strong> software.<\/p>\n

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    Storing Values in MV_UD with SetValue(s)<\/strong><\/h5>\n<\/li>\n<\/ol>\n

    In the Control Type<\/strong> list, select SetValue(s)<\/strong>.<\/p>\n

    SetValue(s)<\/strong> assigns a fixed value of a physical quantity at a specific moment to the user-defined meta variable (MV_UD<\/strong>). We\u2019ll cover the details in the sections below.<\/p>\n

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    \n

    \"application<\/p>\n<\/div>\n<\/div>\n

    In the Extra Control Value1<\/strong> field, select the parameter you want to store. The software provides many parameters; in this example, LS_CHAN_Charge_Capacity<\/strong> is selected. LS_CHAN_Charge_Capacity<\/strong> is short for Last Step Channel Charge Capacity<\/strong>. Here, it captures the channel\u2019s Charge Capacity<\/strong> from the previous step (Step_D \u2013 Current<\/strong>).<\/p>\n

    In the Control Value<\/strong> field, select the MV_UD<\/strong> variable where you want to store the value. In this example, MV_UD3<\/strong> is used because MV_UD1<\/strong> \uadf8\ub9ac\uace0 MV_UD2<\/strong> are reserved for another example. In total, there are 16 MV_UD variables<\/strong> available.<\/p>\n

    With this setup, the value of LS_CHAN_Charge_Capacity<\/strong> at that moment is assigned to MV_UD3<\/strong>. For instance, if the value is 1.2 Ah<\/strong>, then MV_UD3<\/strong> will hold 1.2 Ah<\/strong>. When MV_UD3<\/strong> is called in later steps, it will still return 1.2 Ah<\/strong> unless you assign a new value to MV_UD3<\/strong>.<\/p>\n

    Besides charge capacity, it can store many other variables well\u2014for example, the last-step voltage, formulas, and CAN\/SMB<\/span><\/span><\/span> messages. To explore these options, right-click the Control Value<\/strong> field and choose either Meta Variable\u2026<\/strong> or Goto Formula<\/strong>.<\/p>\n

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    \"application<\/p>\n<\/div>\n<\/div>\n

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    <\/div>\n
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    \"application<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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    1. \n
      Store Variables in MV_UD Using SetReference<\/strong><\/h5>\n<\/li>\n<\/ol>\n

      SetReference(s)<\/strong> stores a reference in an MV_UD<\/strong> meta variable. Unlike SetValue(s)<\/strong>, the stored reference is linked<\/em> to the selected metavariables\u2014so when that metavariable\u2019s value changes, the value of MV_UD<\/strong> updates automatically. We\u2019ll cover the details in the sections below.<\/p>\n

      In the Control Type<\/strong> list, select SetReference(s)<\/strong> instead of SetValue(s)<\/strong>.<\/p>\n

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      \n

      \"application<\/p>\n<\/div>\n<\/div>\n

      In the example above, after Step_E<\/strong> assigns Channel Charge Capacity<\/strong> to MV_UD3<\/strong>, MV_UD3<\/strong> updates continuously as that quantity changes over the course of the test, as shown in the data below:<\/p>\n

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      \"application<\/p>\n<\/div>\n<\/div>\n

      We can see that even after Step 3<\/strong>, MV_UD3<\/strong> continues to update during Step 4<\/strong>. This behavior is the key difference compared with the SetValue(s)<\/strong> control type.<\/p>\n

      SetReference<\/strong> is usually used to record the referenced value to the exported date file.<\/p>\n

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      1. \n
        Update MV_UD from third-party software via CTI(Console TCP\/IP Interface) and use it to control the channel.<\/strong><\/h5>\n<\/li>\n<\/ol>\n

        We\u2019ll walk through a simple example of using MV_UD<\/strong> to control the current during a test. In this example, we use the \uc804\ub958<\/strong> control type and set the current using an MV_UD<\/strong> value rather than a fixed number.<\/p>\n

        In the Control Value<\/strong> field, select MV_UD1<\/strong> instead of entering a numeric value (right-click \u2192 Meta Variable<\/strong>).<\/p>\n

        Optional: In the \uae00\ub85c\ubc8c<\/strong> tab, you can assign alias names to MV_UD1<\/strong> \uadf8\ub9ac\uace0 MV_UD2<\/strong>. In this example, they are named ChargeCC<\/strong> \uadf8\ub9ac\uace0 DischargeCC<\/strong>. You can also set default values for these variables:<\/p>\n

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        \"application<\/p>\n<\/div>\n<\/div>\n

        As an example of a third-party application using CTI<\/strong>, we\u2019ll use ArbinViewer<\/strong>. Although ArbinViewer is developed by Arbin, from the MITS<\/span><\/strong> software perspective it is treated as third-party software. Users can develop their own script\/software to update MV_UDs through CTI.<\/p>\n

        After you complete the connection and setup in ArbinViewer, go to Control \u2192 Set MetaVariables<\/strong>, then assign the required value to MV_UD1<\/strong>.<\/p>\n

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        <\/div>\n
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        \"application<\/p>\n

        \"application<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

        This value is sent to MITS<\/span><\/strong> and used to update the current setpoint in the \uc804\ub958<\/strong> step.<\/p>\n

        \ucc38\uace0:<\/strong> The channel receives MV_UD updates only while the test is already running. If you set MV_UD<\/strong> before starting the channel, the value will not take effect.<\/p>\n

        In addition to the \uc804\ub958<\/strong> control type, you can use the same MV_UD method with many other control types, such as \uc804\uc555<\/strong>, \ud30c\uc6cc<\/strong>\ubc0f C-Rate<\/strong>.<\/p>\n

        \ucc38\uc870:<\/p>\n

        ArbinViewer manual<\/p>\n

        MITS<\/span> manual<\/p>","protected":false},"excerpt":{"rendered":"

        In Arbin software, MV_UD (short for User-Defined Meta Variables) is a powerful tool for controlling battery testers. This article explains how to use MV_UD in Arbin MITS software. Storing Values in MV_UD with SetValue(s) In the Control Type list, select SetValue(s). SetValue(s) assigns a fixed value of a physical quantity at a specific moment to […]<\/p>","protected":false},"author":6,"featured_media":82298,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[412],"tags":[],"class_list":["post-81263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/posts\/81263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/comments?post=81263"}],"version-history":[{"count":4,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/posts\/81263\/revisions"}],"predecessor-version":[{"id":81279,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/posts\/81263\/revisions\/81279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/media\/82298"}],"wp:attachment":[{"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/media?parent=81263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/categories?post=81263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.arbin.com\/ko\/wp-json\/wp\/v2\/tags?post=81263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}