{"id":956,"date":"2021-03-29T09:55:09","date_gmt":"2021-03-29T09:55:09","guid":{"rendered":"https:\/\/imperix.com\/doc\/?p=956"},"modified":"2025-10-30T12:00:00","modified_gmt":"2025-10-30T12:00:00","slug":"analog-front-end-configuration-on-b-box-rcp","status":"publish","type":"post","link":"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp","title":{"rendered":"Analog front-end configuration on B-Box 3"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-right-text counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp\/#Front-end-configuration-hardware\" >Front-end configuration (hardware)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp\/#Configuring-the-hardware-safety-limits\" >Configuring the hardware safety limits<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp\/#Software-configuration\" >Software configuration<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp\/#Simulink-blockset\" >Simulink blockset<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp\/#PLECS-blockset\" >PLECS blockset<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/imperix.com\/doc\/help\/analog-front-end-configuration-on-b-box-rcp\/#CC-configuration\" >C\/C++ configuration<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">The B-Box 3 (RCP) has 16 identical analog input channels. The equivalent schematic of the data acquisition chain is shown below. Each channel consists of two parts:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong>hardware <\/strong>part, which contains a configurable input impedance, a programmable gain amplifier (PGA), a low-pass filter (LPF), and the analog-to-digital converter (ADC).<\/li>\n\n\n\n<li>A <strong>firmware<\/strong> and <strong>software <\/strong>part, which is responsible for transferring all data to the CPU and transforming the converted value into a meaningful quantity, considering the sensitivity of the whole chain, from the sensor to the converted value.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"348\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-174-1024x348.png\" alt=\"Simplified schematics of the B-Box analog input\" class=\"wp-image-957\" title=\"Product notes &gt; PN105: Analog front-end configuration on B-Box RCP &gt; image-20200312-150026.png\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-174-1024x348.png 1024w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-174-300x102.png 300w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-174-768x261.png 768w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-174-1536x522.png 1536w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-174-2048x696.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-simple-alerts-for-gutenberg-alert-boxes sab-alert sab-alert-info\" role=\"alert\">The B-Box 3 offers a fully configurable front-end, which is also available on the <a href=\"https:\/\/imperix.com\/products\/control\/rcp-controller\/\">B-Box 4<\/a>, but not on the <a href=\"https:\/\/imperix.com\/products\/control\/power-inverter-controller\/\">B-Box micro<\/a>. Further comparative information on imperix controllers is given in <a href=\"https:\/\/imperix.com\/doc\/help\/programmable-controller-selection\">PN250<\/a>.<\/div>\n\n\n\n<h2 id=\"h-front-end-configuration-hardware\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Front-end-configuration-hardware\"><\/span>Front-end configuration (hardware)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"97\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-20200312-152642-1024x97.png\" alt=\"Front view of the B-Box RCP with analog inputs\" class=\"wp-image-965\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-20200312-152642-1024x97.png 1024w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-20200312-152642-300x28.png 300w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-20200312-152642-768x73.png 768w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-20200312-152642-1536x146.png 1536w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-20200312-152642.png 2035w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The LCD screen and rotary push buttons allow editing of all configuration parameters of the analog front-end. To access the related menu:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Push once, select <code>ANALOG INPUTS<\/code> and confirm (push again).<\/li>\n\n\n\n<li>Select the desired input channel and confirm.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The following options are available:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><th><strong>Menu<\/strong><\/th><th><strong>Available values<\/strong><\/th><th><strong>Comment<\/strong><\/th><\/tr><tr><td><strong>Input impedance<\/strong><\/td><td>Low, High<\/td><td>Low = 100\u03a9 \/ High = 3k\u03a9<\/td><\/tr><tr><td><strong>Gain<\/strong><\/td><td>1x, 2x, 4x, 8x<\/td><td>This is equivalent to setting the input scale to \u00b110V, \u00b15.0V, \u00b12.5V and \u00b11.25V.<\/td><\/tr><tr><td><strong>Filter<\/strong><\/td><td>0.5kHz, 1kHz, 1.6kHz, 2.5kHz, 4kHz, 6.4kHz, 8kHz, 10kHz, 16kHz, 20kHz, 32kHz, 40kHz<\/td><td>More information on the corresponding group delay can be found in the <a href=\"https:\/\/imperix.com\/products\/control\/bbox\">datasheet<\/a>.<\/td><\/tr><tr><td><strong>Limit high<\/strong><\/td><td>-10V to +10V<\/td><td>Increments of 0.1V. Precision is approx \u00b10.2V.<\/td><\/tr><tr><td><strong>Limit low<\/strong><\/td><td>-10V to +10V<\/td><td>Increments of 0.1V. Precision is approx \u00b10.2V.<\/td><\/tr><tr><td><strong>Disable safety<\/strong><\/td><td>Yes \/ No<\/td><td>Can be used to disregard the protection thresholds. In this case, the green LED indicator switches off on the corresponding input channel.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"h-configuring-the-hardware-protection-limits\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Configuring-the-hardware-safety-limits\"><\/span>Configuring the hardware safety limits<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The analog front-end of the B-Box 3 provides hardware protection that halts operation if any analog input exceeds a configured limit, typically ensuring that the controlled power converter&#8217;s ratings are never exceeded. More information on the implementation and the operating principles of the hardware protections is given in <a href=\"https:\/\/imperix.com\/doc\/help\/hardware-protections-on-imperix-controllers\">PN263<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On B-Box 3, the reaction time of the protections cannot be configured. It is always ~1.6\u03bcs. Additionally, the bandwidth of the employed sensor may further limit this reaction time.<\/p>\n\n\n\n<h5 id=\"h-numerical-example\" class=\"wp-block-heading\">Numerical example<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">We consider here a sinusoidal current measured by a <a href=\"https:\/\/cdn.imperix.com\/wp-content\/uploads\/document\/DIN-50A.pdf\">DIN50A<\/a> sensor that should not exceed 20 A (RMS value). The sensor sensitivity is 99.0 mV\/A, and a x2 gain is configured on that analog input channel. The <em>Limit High<\/em> and <em>Limit Low<\/em> values are computed as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Maximum acceptable instantaneous current:&nbsp;\\(\\pm 20\\,\\text{A}\\times\\sqrt{2}=\\pm 28.28\\,\\text{A}\\)<\/li>\n\n\n\n<li>Corresponding sensor output:&nbsp;\\(\\pm 28.28\\,\\text{A} \\times 99\\,\\text{mV\/A} = \\pm 2.8\\,\\text{V}\\)<\/li>\n\n\n\n<li><em>Limit High<\/em> and <em>Limit Low<\/em> values: \\(\\pm 2.8\\,\\text{V}\\times 2 = \\pm 5.6\\,\\text{V}\\)<\/li>\n<\/ul>\n\n\n\n<h5 id=\"h-storing-and-restoring-a-configuration\" class=\"wp-block-heading\">Storing and restoring a configuration<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The configuration of the front panel can be saved on a USB key, using the <code>BACKUP CONFIG<\/code> menu of the front panel. The configuration is automatically (and always!) stored in a file named \u201cfrontpanel0.bbox\u201d on the USB key. In this way, the configuration can be saved for different applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The configuration can be restored by using the <code>RESTORE CONFIG<\/code> menu. The B-Box will search for files named \u201cfrontpanel#.bbox\u201d in the imperix folder of the USB key, # being a number. The configuration file with the highest number is restored.<\/p>\n\n\n\n<h5 id=\"h-reading-and-writing-configuration-files\" class=\"wp-block-heading\">Reading and writing configuration files<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The configuration file can be generated using Cockpit. To do so:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>On a computer, edit the desired configuration using Cockpit.<\/li>\n\n\n\n<li>Click \u201csave as\u201d and reach the root of the USB key.<\/li>\n\n\n\n<li>Create a folder named \u201cimperix\u201d.<\/li>\n\n\n\n<li>Store the configuration file as frontpanel#.bbox within the \u201cimperix\u201d folder. The # number can be incremented at wish.<\/li>\n\n\n\n<li>Move the USB key from the computer to the B-Box and restore the saved configuration file using the <code>RESTORE CONFIG<\/code> option. Only the last file (largest # number) can be loaded.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"877\" height=\"785\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/02\/image-31.png\" alt=\"\" class=\"wp-image-24456\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/02\/image-31.png 877w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/02\/image-31-300x269.png 300w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2024\/02\/image-31-768x687.png 768w\" sizes=\"auto, (max-width: 877px) 100vw, 877px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The front-end is physically independent of the main processing circuit <em>by design<\/em>. This guarantees superior reliability of the safety settings, which cannot be altered by software. For this reason, the configuration <em>cannot <\/em>be loaded automatically via Cockpit, and a USB key is required.<\/p>\n\n\n\n<div class=\"wp-block-simple-alerts-for-gutenberg-alert-boxes sab-alert sab-alert-info\" role=\"alert\">The configuration of the analog front-end is significantly different from that of the B-Box 4 because it is partly automated via sensor <a href=\"https:\/\/imperix.com\/doc\/help\/sensor-auto-identification?currentThread=b-box-4\">auto-ID<\/a> and can be done entirely from Cockpit, as shown in <a href=\"https:\/\/imperix.com\/doc\/help\/analog-i-o-configuration-on-b-box-4\">PN252<\/a>.<\/div>\n\n\n\n<h2 id=\"h-software-configuration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Software-configuration\"><\/span>Software configuration<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In addition to (and independently of) the hardware configuration of the analog front-end, the software configuration of the B-Box 3 must be implemented to reflect the corresponding parameters.<\/p>\n\n\n\n<h3 id=\"h-simulink-blockset\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Simulink-blockset\"><\/span>Simulink blockset<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Each <a href=\"https:\/\/imperix.com\/doc\/software\/analog-data-acquisition\" data-type=\"link\" data-id=\"https:\/\/imperix.com\/doc\/software\/analog-data-acquisition\">ADC<\/a> block must be configured to account for the connected sensor as well as the front-end configuration. When imperix sensors are used, the associated parameters can be automatically loaded from a drop-down list.<\/p>\n\n\n\n<div class=\"wp-block-simple-alerts-for-gutenberg-alert-boxes sab-alert sab-alert-warning\" role=\"alert\">Users must not forget to report here the <strong>gain<\/strong> that has been physically selected on the front panel.<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"424\" height=\"739\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-177.png\" alt=\"ADC gain configuration dialog in Simulink\" class=\"wp-image-961\" title=\"Product notes &gt; PN105: Analog front-end configuration on B-Box RCP &gt; 2020-09-22 13_36_34-Block Parameters_ ADC.png\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-177.png 424w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-177-172x300.png 172w\" sizes=\"auto, (max-width: 424px) 100vw, 424px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"424\" height=\"739\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-176.png\" alt=\"ADC sensitivity configuration dialog in Simulink\" class=\"wp-image-960\" title=\"Product notes &gt; PN105: Analog front-end configuration on B-Box RCP &gt; 2020-09-22 13_35_09-Block Parameters_ ADC.png\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-176.png 424w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-176-172x300.png 172w\" sizes=\"auto, (max-width: 424px) 100vw, 424px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 id=\"h-plecs-blockset\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PLECS-blockset\"><\/span>PLECS blockset<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The configuration in PLECS is similar to that in Simulink.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"435\" height=\"484\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-178.png\" alt=\"ADC gain configuration dialog in PLECS\" class=\"wp-image-962\" title=\"Product notes &gt; PN105: Analog front-end configuration on B-Box RCP &gt; ADC.png\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-178.png 435w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-178-270x300.png 270w\" sizes=\"auto, (max-width: 435px) 100vw, 435px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"435\" height=\"484\" src=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-179.png\" alt=\"ADC sensitivity configuration dialog in PLECS\" class=\"wp-image-963\" title=\"Product notes &gt; PN105: Analog front-end configuration on B-Box RCP &gt; adc-plecs-2.png\" srcset=\"https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-179.png 435w, https:\/\/imperix.com\/doc\/wp-content\/uploads\/2021\/03\/image-179-270x300.png 270w\" sizes=\"auto, (max-width: 435px) 100vw, 435px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 id=\"h-c-c-configuration\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CC-configuration\"><\/span>C\/C++ configuration<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The dedicated C\/C++ routines are described in the corresponding <a href=\"https:\/\/imperix.com\/doc\/software\/adc-analog-data-acquisition\">software reference<\/a> page. Each ADC channel must be configured during the initialization phase using:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"C++\" data-shcb-language-slug=\"cpp\"><span><code class=\"hljs language-cpp\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">Adc_ConfigureInput<\/span><span class=\"hljs-params\">(uint channel, <span class=\"hljs-keyword\">float<\/span> gain, <span class=\"hljs-keyword\">float<\/span> offset, uint bboxid=<span class=\"hljs-number\">0<\/span>)<\/span><\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">C++<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">cpp<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<ul class=\"wp-block-list\">\n<li><code>channel<\/code> is the analog input channel number.<\/li>\n\n\n\n<li><code>gain<\/code> and <code>offset<\/code> must be configured given that the returned value during operation is computed as \\(y=a x + b\\), where \\(a\\) is the gain and \\(b\\) the offset.<\/li>\n\n\n\n<li>bboxid is the ID of the addressed B-Box (optional parameter, useful in a multi-B-Box configuration only).<\/li>\n<\/ul>\n\n\n\n<h4 id=\"h-numerical-example-1\" class=\"wp-block-heading\">Numerical example:<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">This example considers the current sensor of a <a href=\"https:\/\/imperix.com\/wp-content\/uploads\/document\/PEB8024.pdf\">PEB8024 <\/a>module. Its sensitivity is \\(S=50.0\\,[\\text{mV\/A}]\\). As recommended in the <a href=\"https:\/\/imperix.com\/wp-content\/uploads\/document\/PEB8024.pdf\">datasheet<\/a>, the front-end gain is selected as \\(G=2\\). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Considering that the ADC offers 16 bits over the \u00b110V input range, this results in a total sensitivity of \\(\\alpha = S\\cdot G\\cdot 32768\/10=327.68\\,[\\text{bit\/A}]\\).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this example, <code>gain<\/code> must therefore be equal to \\(a=1\/\\alpha=3.052\\,[\\text{mA\/bit}]\\). The <code>offset<\/code> value can be adjusted empirically to cancel the measured value when no current is flowing through the sensor (static offset).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Subsequently, within each interrupt, the latest value can be retrieved using <code>Adc_GetValue()<\/code>:<\/p>\n\n\n<pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"C++\" data-shcb-language-slug=\"cpp\"><span><code class=\"hljs language-cpp\"><span class=\"hljs-function\"><span class=\"hljs-keyword\">float<\/span> <span class=\"hljs-title\">Adc_GetValue<\/span><span class=\"hljs-params\">(uint channel, uint bboxid=<span class=\"hljs-number\">0<\/span>)<\/span><\/span>;<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">C++<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">cpp<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre>\n\n\n<ul class=\"wp-block-list\">\n<li><code>channel<\/code> is the analog input channel number.<\/li>\n\n\n\n<li><code>bboxid<\/code> is the ID of the addressed B-Box (optional parameter, useful in multi-B-Box configuration only).<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The B-Box 3 (RCP) has 16 identical analog input channels. The equivalent schematic of the data acquisition chain is shown below. Each channel consists of&#8230;<\/p>\n","protected":false},"author":3,"featured_media":2994,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[3],"tags":[],"software-environments":[],"provided-results":[],"related-products":[166],"guidedreadings":[],"tutorials":[],"user-manuals":[137],"coauthors":[69,91],"class_list":["post-956","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-help","related-products-b-box-rcp-3-0","user-manuals-b-box-rcp-3-0"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Analog front-end configuration on B-Box 3 - 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