{"id":33798,"date":"2025-04-17T20:21:32","date_gmt":"2025-04-17T18:21:32","guid":{"rendered":"https:\/\/sklep-plcspace.pl\/?p=33798"},"modified":"2025-04-22T12:44:57","modified_gmt":"2025-04-22T10:44:57","slug":"plc-zbocze-ujemne-negative-edge-siemens","status":"publish","type":"post","link":"https:\/\/sklep-plcspace.pl\/en\/blog\/plc-zbocze-ujemne-negative-edge-siemens\/","title":{"rendered":"Instrukcja &#8222;Scan Operand for Negative Signal Edge&#8221;"},"content":{"rendered":"<p>Mo\u017cesz u\u017cy\u0107 instrukcji &#8222;Scan operand for negative signal edge&#8221;, aby okre\u015bli\u0107, czy nast\u0105pi\u0142a zmiana stanu sygna\u0142u z &#8222;1&#8221; na &#8222;0&#8221; w okre\u015blonym operacie (&lt;Operand1&gt;). Instrukcja por\u00f3wnuje bie\u017c\u0105cy stan sygna\u0142u &lt;Operand1&gt; z stanem sygna\u0142u z poprzedniego skanowania, kt\u00f3ry jest zapisany w bicie pami\u0119ci zbocza &lt;Operand2&gt;. Je\u015bli instrukcja wykryje zmian\u0119 w wyniku operacji logicznej (RLO) z &#8222;1&#8221; na &#8222;0&#8221;, nast\u0119puje zbocze ujemna, opadaj\u0105ca.<\/p>\n\n\n\n<p>Nast\u0119puj\u0105ca figura przedstawia zmian\u0119 stanu sygna\u0142u w przypadku zbocza ujemnej i dodatniej:<\/p>\n\n\n\n<p>\u200b<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"570\" height=\"155\" src=\"https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXf9w1NXwgN3yjuacKMy6rs0a4_HTnrFcijz9HBeymEVgE8BjA9adPlTR5OSi-LnAx4r_NOhM3yA4MyvzXYoe7GeUny5b7S78hHlOtbmYKSJO1LtlLD1MyZoMSlZqqDJmpq27o4gORHNPKcB04gsLxA.png\" alt=\"\" class=\"wp-image-33800\" srcset=\"https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXf9w1NXwgN3yjuacKMy6rs0a4_HTnrFcijz9HBeymEVgE8BjA9adPlTR5OSi-LnAx4r_NOhM3yA4MyvzXYoe7GeUny5b7S78hHlOtbmYKSJO1LtlLD1MyZoMSlZqqDJmpq27o4gORHNPKcB04gsLxA.png 570w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXf9w1NXwgN3yjuacKMy6rs0a4_HTnrFcijz9HBeymEVgE8BjA9adPlTR5OSi-LnAx4r_NOhM3yA4MyvzXYoe7GeUny5b7S78hHlOtbmYKSJO1LtlLD1MyZoMSlZqqDJmpq27o4gORHNPKcB04gsLxA-300x82.png 300w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXf9w1NXwgN3yjuacKMy6rs0a4_HTnrFcijz9HBeymEVgE8BjA9adPlTR5OSi-LnAx4r_NOhM3yA4MyvzXYoe7GeUny5b7S78hHlOtbmYKSJO1LtlLD1MyZoMSlZqqDJmpq27o4gORHNPKcB04gsLxA-18x5.png 18w\" sizes=\"(max-width: 570px) 100vw, 570px\" \/><\/figure>\n\n\n\n<p>zbocze ujemne sygna\u0142u jest sprawdzana za ka\u017cdym razem, gdy instrukcja jest wykonywana. Gdy wykryta zostanie zbocze ujemna, &lt;Operand1&gt; jest ustawiane na stan sygna\u0142u &#8222;1&#8221; przez jeden cykl programu. W innych przypadkach operat ma stan sygna\u0142u &#8222;0&#8221;.<\/p>\n\n\n\n<p>Okre\u015bl operat, kt\u00f3ry ma by\u0107 sprawdzany (&lt;Operand1&gt;) w miejscu na operat powy\u017cej instrukcji. Okre\u015bl bit pami\u0119ci zbocze (&lt;Operand2&gt;) w miejscu na operat poni\u017cej instrukcji.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"3\"><br>Uwaga<\/td><\/tr><tr><td><\/td><td><\/td><td>Zmiana adresu bitu pami\u0119ci zboczaAdres bitu pami\u0119ci zbocza nie mo\u017ce by\u0107 u\u017cywany wi\u0119cej ni\u017c raz w programie, w przeciwnym razie pami\u0119\u0107 bitu zostanie nadpisana. Ten krok wp\u0142ywa na ocen\u0119 zbocza, a wynik nie jest ju\u017c unikalny. Obszar pami\u0119ci bitu zbocza musi znajdowa\u0107 si\u0119 w DB (statyczny obszar dla FB) lub w obszarze pami\u0119ci bitowej.<\/td><\/tr><tr><td colspan=\"3\"><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Parametry<\/p>\n\n\n\n<p>Nast\u0119puj\u0105ca tabela przedstawia parametry instrukcji &#8222;Scan operand for negative signal edge&#8221;:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td rowspan=\"2\"><strong>Parametr<\/strong><\/td><td rowspan=\"2\"><strong>Deklaracja<\/strong><\/td><td rowspan=\"2\"><strong>Typ danych<\/strong><\/td><td colspan=\"2\"><strong>Obszar pami\u0119ci<\/strong><\/td><td rowspan=\"2\"><strong>Description<\/strong><\/td><\/tr><tr><td><strong>S7-1200<\/strong><\/td><td><strong>S7-1500<\/strong><\/td><\/tr><tr><td>&lt;Operand1&gt;<\/td><td>Wej\u015bcie<\/td><td>BOOL<\/td><td>I, Q, M, D, L lub sta\u0142a<\/td><td>I, Q, M, D, L, T, C lub sta\u0142a<\/td><td>Sygna\u0142 do zeskanowania<\/td><\/tr><tr><td>&lt;Operand2&gt;<\/td><td>InOut<\/td><td>BOOL<\/td><td>I, Q, M, D, L<\/td><td>I, Q, M, D, L<\/td><td>Bit pami\u0119ci zbocza, w kt\u00f3rym zapisany jest stan sygna\u0142u z poprzedniego zapytania.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Example<\/p>\n\n\n\n<p>Nast\u0119puj\u0105cy przyk\u0142ad pokazuje, jak dzia\u0142a instrukcja:<\/p>\n\n\n\n<p>\u200b<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"615\" height=\"134\" src=\"https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXcClcbR3bVeewM10jPd7RPeHibGEqfisQH9g0lVUkeMJFPx1fzRgqyJnbJC7xmCqgEknvhlSNxgVSnrvGPZ5fYhYglW-zAkfdy9fjTNeBD5HfgS3br1W0n_N1UAXnODuVF2QbD__UDoPJZKmfSGSuc.png\" alt=\"\" class=\"wp-image-33799\" srcset=\"https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXcClcbR3bVeewM10jPd7RPeHibGEqfisQH9g0lVUkeMJFPx1fzRgqyJnbJC7xmCqgEknvhlSNxgVSnrvGPZ5fYhYglW-zAkfdy9fjTNeBD5HfgS3br1W0n_N1UAXnODuVF2QbD__UDoPJZKmfSGSuc.png 615w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXcClcbR3bVeewM10jPd7RPeHibGEqfisQH9g0lVUkeMJFPx1fzRgqyJnbJC7xmCqgEknvhlSNxgVSnrvGPZ5fYhYglW-zAkfdy9fjTNeBD5HfgS3br1W0n_N1UAXnODuVF2QbD__UDoPJZKmfSGSuc-300x65.png 300w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXcClcbR3bVeewM10jPd7RPeHibGEqfisQH9g0lVUkeMJFPx1fzRgqyJnbJC7xmCqgEknvhlSNxgVSnrvGPZ5fYhYglW-zAkfdy9fjTNeBD5HfgS3br1W0n_N1UAXnODuVF2QbD__UDoPJZKmfSGSuc-18x4.png 18w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/AD_4nXcClcbR3bVeewM10jPd7RPeHibGEqfisQH9g0lVUkeMJFPx1fzRgqyJnbJC7xmCqgEknvhlSNxgVSnrvGPZ5fYhYglW-zAkfdy9fjTNeBD5HfgS3br1W0n_N1UAXnODuVF2QbD__UDoPJZKmfSGSuc-600x131.png 600w\" sizes=\"(max-width: 615px) 100vw, 615px\" \/><\/figure>\n\n\n\n<p>Operat &#8222;TagOut&#8221; jest ustawiany, gdy spe\u0142nione s\u0105 nast\u0119puj\u0105ce warunki:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Operandy &#8222;TagIn_1&#8221;, &#8222;TagIn_2&#8221; i &#8222;TagIn_3&#8221; maj\u0105 stan sygna\u0142u &#8222;1&#8221;.<\/li>\n\n\n\n<li>Na operacie &#8222;TagIn_4&#8221; wyst\u0119puje zbocze ujemne sygna\u0142u. Stan sygna\u0142u z poprzedniego skanowania jest zapisany w bicie pami\u0119ci zbocza &#8222;Tag_M&#8221;.<\/li>\n\n\n\n<li>Stan sygna\u0142u operatu &#8222;TagIn_5&#8221; wynosi &#8222;1&#8221;.<\/li>\n<\/ul>\n\n\n\n<p>If you would like to enhance your knowledge and skills in programming and configuration of automation systems, we recommend enrolling in the<a href=\"https:\/\/sklep-plcspace.pl\/en\/thank-you-for-placing-the-order-9\/?wmc-currency=EUR\"> <\/a><strong><a href=\"https:\/\/sklep-plcspace.pl\/en\/siemens\/simatic-s7-in-action\/?wmc-currency=EUR\" target=\"_blank\" rel=\"noreferrer noopener\">free PLC course<\/a><\/strong>! Sprawd\u017a r\u00f3wnie\u017c nasz\u0105 instrukcj\u0119 wideo:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Wykrywanie zboczy - Kurs programowania PLC Siemens S7-1200 - TIA Portal - LAD\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/7KCVHHBG_Ck?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"850\" height=\"200\" src=\"https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/bezplatny-s7-1200-5.png\" alt=\"\" class=\"wp-image-34056\" srcset=\"https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/bezplatny-s7-1200-5.png 850w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/bezplatny-s7-1200-5-300x71.png 300w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/bezplatny-s7-1200-5-768x181.png 768w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/bezplatny-s7-1200-5-18x4.png 18w, https:\/\/sklep-plcspace.pl\/wp-content\/uploads\/2025\/04\/bezplatny-s7-1200-5-600x141.png 600w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Mo\u017cesz u\u017cy\u0107 instrukcji &#8222;Scan operand for negative signal edge&#8221;, aby okre\u015bli\u0107, czy nast\u0105pi\u0142a zmiana stanu sygna\u0142u z &#8222;1&#8221; na &#8222;0&#8221; w okre\u015blonym operacie (&lt;Operand1&gt;). Instrukcja por\u00f3wnuje bie\u017c\u0105cy stan sygna\u0142u &lt;Operand1&gt; z stanem sygna\u0142u z poprzedniego skanowania, kt\u00f3ry jest zapisany w bicie pami\u0119ci zbocza &lt;Operand2&gt;. Je\u015bli instrukcja wykryje zmian\u0119 w wyniku operacji logicznej (RLO) z &#8222;1&#8221; [&hellip;]<\/p>","protected":false},"author":2505,"featured_media":33779,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"","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":[1],"tags":[],"class_list":["post-33798","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bez-kategorii"],"acf":[],"_links":{"self":[{"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/posts\/33798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/users\/2505"}],"replies":[{"embeddable":true,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/comments?post=33798"}],"version-history":[{"count":3,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/posts\/33798\/revisions"}],"predecessor-version":[{"id":34071,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/posts\/33798\/revisions\/34071"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/media\/33779"}],"wp:attachment":[{"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/media?parent=33798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/categories?post=33798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sklep-plcspace.pl\/en\/wp-json\/wp\/v2\/tags?post=33798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}