{"id":551,"date":"2014-01-04T09:49:29","date_gmt":"2014-01-04T09:49:29","guid":{"rendered":"http:\/\/www.horter.de\/blog\/?p=551"},"modified":"2023-01-14T17:59:10","modified_gmt":"2023-01-14T17:59:10","slug":"i2c-analog-input-5-kanaele-10-bit","status":"publish","type":"post","link":"https:\/\/www.horter.de\/blog\/i2c-analog-input-5-kanaele-10-bit\/","title":{"rendered":"I2C-Analog Input 5 Kan\u00e4le 0-10V 10 Bit"},"content":{"rendered":"<p>Wir haben unser\u00a0Produktspektrum um zwei neue I2C-Baugruppen zum aufschnappen auf die Norm-Hutschiene erweitert. Die Abmessungen der Leiterplatten sind 45,5 mm x 65,5 mm und passen in die WAGO Montagesockel f\u00fcr Kleinplatinen, die auf\u00a0Standard-DIN-Schienen montiert werden k\u00f6nnen.<\/p>\n<p>Die Karten gibt es im Onlineshop\u00a0<a href=\"https:\/\/www.horter-shop.de\/\" target=\"_blank\" rel=\"noopener noreferrer\">Horter-Shop<\/a>. Artikel <a href=\"https:\/\/www.horter-shop.de\/de\/i2c-hutschienen-module\/172-bausatz-i2c-analog-input-modul-5-kanal-10-bit-4260404260745.html\" target=\"_blank\" rel=\"noopener noreferrer\">I2HAE<\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Analoge Eingabekarte mit 5 Kan\u00e4len und 10 Bit Aufl\u00f6sung (I2HAE)<\/h3>\n<div id=\"attachment_763\" style=\"width: 330px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.horter.de\/blog\/wp-content\/uploads\/2014\/01\/I2HS-Analog-Input1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-763\" class=\" wp-image-763 \" title=\"Analoge I2C-Eingabekarte 5 Kan\u00e4le 0..10V 10 Bit-Aufl\u00f6sung\" src=\"https:\/\/www.horter.de\/blog\/wp-content\/uploads\/2014\/01\/I2HS-Analog-Input1.jpg\" alt=\"I2C-ADC 5 CH 10 Bit\" width=\"320\" height=\"332\" srcset=\"https:\/\/www.horter.de\/blog\/wp-content\/uploads\/2014\/01\/I2HS-Analog-Input1.jpg 400w, https:\/\/www.horter.de\/blog\/wp-content\/uploads\/2014\/01\/I2HS-Analog-Input1-289x300.jpg 289w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/a><p id=\"caption-attachment-763\" class=\"wp-caption-text\">I2C-Analog Input card 5 Chanel 10 Bit<\/p><\/div>\n<p>&nbsp;<\/p>\n<h2>Allgemeines<\/h2>\n<p>Die Analog-In Karte verf\u00fcgt \u00fcber insgesamt 5 A\/D Wandler mit einer Aufl\u00f6sung von 10 Bit. Die Analog-In Karte ist komplett Register gesteuert. Alle Daten werden in les- und schreibbaren Registern gespeichert.<\/p>\n<p>&nbsp;<\/p>\n<h2>Hardware<\/h2>\n<p>Gesteuert werden alle Vorg\u00e4nge auf der Karte von einem Mikrokontroller (PIC 18F13K22). Dieser stellt die Verbindung zwischen dem I2C-Bus und den A\/D-Wandlern her. Er sorgt daf\u00fcr dass die Daten in den Registern mit einer Frequenz von 80 Hz aktualisiert werden..<br \/>\nDer minimale Wert eines Registers liegt bei 0x0000 (dec. 0)\u00a0der Maximale\u00a0 0x03FF (dec. 1023). Die A\/D-Wandler messen gegen eine interne Referenzspannung von 2,048 Volt. Somit entspricht der maximale Wert einer messbaren Spannung von 2,048 Volt am Eingang. Mit entsprechenden Eingangswiderst\u00e4nden l\u00e4sst sich der Messbereich der Karte erweitern.<\/p>\n<p>&nbsp;<\/p>\n<h3>I2C-Adresse<\/h3>\n<p>Wie bei allen Karten kann man die I2C-Adresse innerhalb eines gewissen Rahmens w\u00e4hlen.<\/p>\n<p>I2C-Adressen sind immer als 7+1 Bit Adressen aufgebaut. Das letzte Bit entscheidet dar\u00fcber ob der Master lesen oder schreiben will.<br \/>\nAuf gerade I2C-Adressen wird immer geschrieben \u2013 von ungeraden Adressen wird immer gelesen.<\/p>\n<p>Beim Raspberry muss die 7-Bit Adresse angegeben werden. Die Umschaltung des letzten Adress-Bits wird vom PI selbst gesteuert.<\/p>\n<table width=\"422\">\n<tbody>\n<tr>\n<td width=\"102\"><strong>Analog IN<\/strong><\/td>\n<td width=\"80\">8-Bit dez<\/td>\n<td width=\"80\">8-Bit hex<\/td>\n<td width=\"80\">7-Bit dez<\/td>\n<td width=\"80\">7-Bit hex<\/td>\n<\/tr>\n<tr>\n<td>OFF OFF OFF OFF<\/td>\n<td>16<\/td>\n<td>10<\/td>\n<td>8<\/td>\n<td>08<\/td>\n<\/tr>\n<tr>\n<td>OFF OFF OFF\u00a0 ON<\/td>\n<td>18<\/td>\n<td>12<\/td>\n<td>9<\/td>\n<td>09<\/td>\n<\/tr>\n<tr>\n<td>OFF OFF\u00a0 ON\u00a0 OFF<\/td>\n<td>20<\/td>\n<td>14<\/td>\n<td>10<\/td>\n<td>0A<\/td>\n<\/tr>\n<tr>\n<td>OFF OFF \u00a0ON\u00a0 \u00a0 ON<\/td>\n<td>22<\/td>\n<td>16<\/td>\n<td>11<\/td>\n<td>0B<\/td>\n<\/tr>\n<tr>\n<td>OFF \u00a0ON\u00a0 OFF OFF<\/td>\n<td>24<\/td>\n<td>18<\/td>\n<td>12<\/td>\n<td>0C<\/td>\n<\/tr>\n<tr>\n<td>OFF\u00a0 ON\u00a0 OFF\u00a0 ON<\/td>\n<td>26<\/td>\n<td>1A<\/td>\n<td>13<\/td>\n<td>0D<\/td>\n<\/tr>\n<tr>\n<td>OFF\u00a0 ON\u00a0 ON\u00a0 OFF<\/td>\n<td>28<\/td>\n<td>1C<\/td>\n<td>14<\/td>\n<td>0E<\/td>\n<\/tr>\n<tr>\n<td>OFF\u00a0 ON\u00a0 ON\u00a0\u00a0ON<\/td>\n<td>30<\/td>\n<td>1E<\/td>\n<td>15<\/td>\n<td>0F<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 OFF OFF OFF<\/td>\n<td>48<\/td>\n<td>30<\/td>\n<td>24<\/td>\n<td>18<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 OFF OFF\u00a0 ON<\/td>\n<td>50<\/td>\n<td>32<\/td>\n<td>25<\/td>\n<td>19<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 OFF \u00a0ON\u00a0 OFF<\/td>\n<td>52<\/td>\n<td>34<\/td>\n<td>26<\/td>\n<td>1A<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 OFF\u00a0 ON\u00a0 ON<\/td>\n<td>54<\/td>\n<td>36<\/td>\n<td>27<\/td>\n<td>1B<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 ON \u00a0OFF OFF<\/td>\n<td>56<\/td>\n<td>38<\/td>\n<td>28<\/td>\n<td>1C<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 ON \u00a0OFF\u00a0 ON<\/td>\n<td>58<\/td>\n<td>3A<\/td>\n<td>29<\/td>\n<td>1D<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 ON\u00a0 ON\u00a0OFF<\/td>\n<td>60<\/td>\n<td>3C<\/td>\n<td><strong>30<\/strong><\/td>\n<td>1E<\/td>\n<\/tr>\n<tr>\n<td>\u00a0ON\u00a0 ON\u00a0 ON\u00a0 ON<\/td>\n<td>62<\/td>\n<td>3E<\/td>\n<td><strong>31<\/strong><\/td>\n<td>1F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>Daten\u00fcbertragung<\/h2>\n<p>Eigentlich ist die Karte zum Messen da und zum Auslesen der gemessenen Spannungen. Es gibt aber einen Wert den man schreiben kann, den Register-Zeiger. Mit ihm ist es m\u00f6glich einen bestimmten Kanal auszulesen. er ist 1 Byte lang.<\/p>\n<p>Nach Spannung ein ist das Register auf Null gestellt. Somit werden die Analogwerte ab Kanal 0 gelesen.<\/p>\n<p>Bei der Daten\u00fcbertragung k\u00f6nnen beliebig viele Bytes gelesen werden.<\/p>\n<ul>\n<li>die Anzahl der Bytes muss immer ungerade sein (1, 3, 5 usw.)<\/li>\n<li>alle Registerwerte werden mit dem LSB voran gelesen<\/li>\n<li>alle \u00fcberfl\u00fcssigen Leseoperationen werden ignoriert.<\/li>\n<\/ul>\n<p>Im einfachsten Fall liest man immer 11 Bytes von der Analogeingabekarte und bekommt so alle Werte wie folgt in einem Datenarray abgelegt<\/p>\n<p>Byte 1\u00a0\u00a0\u00a0\u00a0 Zeiger<br \/>\nByte 2\u00a0\u00a0\u00a0 Analogwert 1 Low Byte<br \/>\nByte 3\u00a0\u00a0\u00a0 Analogwert 1 High Byte<br \/>\nByte 4\u00a0\u00a0\u00a0 Analogwert 2 Low Byte<br \/>\nByte 5\u00a0\u00a0\u00a0 Analogwert 2 High Byte<br \/>\nByte 6\u00a0\u00a0\u00a0 Analogwert 3 Low Byte<br \/>\nByte 7\u00a0\u00a0\u00a0 Analogwert 3 High Byte<br \/>\nByte 8\u00a0\u00a0\u00a0 Analogwert 4 Low Byte<br \/>\nByte 9\u00a0\u00a0\u00a0 Analogwert 4 High Byte<br \/>\nByte 10\u00a0 Analogwert 5 Low Byte<br \/>\nByte 11\u00a0\u00a0 Analogwert 5 High Byte<\/p>\n<p>&nbsp;<\/p>\n<h2>Beispiel f\u00fcr I2C-RS232-Modem 2 oder I2C-USB-Modem<\/h2>\n<p>Im Beispiel wird mit dem Befehl 51 das Auslesen der 11 Bytes von der Analogkarte angest0\u00dfen. Die empfangenen Daten werden in das Array D(x) abgelegt.<\/p>\n<p>Aus dem Byte D(2) und D(3) wird dann der erste Analogwert berechnet indem man das High-Byte mit 255 multipliziert und das Low-Byte einfach hinzuaddiert. Eine Multiplikation mit 255 entspricht ein links schieben um 8 Bitstellen.<\/p>\n<pre class=\"vbnet\" style=\"font-family: monospace;\"><span style=\"color: #0000ff; font-weight: bold;\">Option<\/span> Explicit\r\n<span style=\"color: #008000; font-style: italic;\">'Globale Variablen anlegen, die in der Funktion \"Modem_Antwort\"<\/span>\r\n<span style=\"color: #008000; font-style: italic;\">'beschrieben werden<\/span>\r\n\r\n<span style=\"color: #0000ff; font-weight: bold;\">Dim<\/span> FB           <span style=\"color: #008000; font-style: italic;\">'Frame Befehl<\/span>\r\n<span style=\"color: #0000ff; font-weight: bold;\">Dim<\/span> FA           <span style=\"color: #008000; font-style: italic;\">'Frame Anzahl<\/span>\r\n<span style=\"color: #0000ff; font-weight: bold;\">Dim<\/span> FE           <span style=\"color: #008000; font-style: italic;\">'Frame Ende<\/span>\r\n<span style=\"color: #0000ff; font-weight: bold;\">Dim<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">1<\/span> <span style=\"color: #0000ff; font-weight: bold;\">To<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">128<\/span><span style=\"color: #000000;\">)<\/span>  <span style=\"color: #008000; font-style: italic;\">'Daten<\/span><\/pre>\n<hr \/>\n<pre class=\"vbnet\" style=\"font-family: monospace;\">\u00a0\r\n<span style=\"color: #0000ff; font-weight: bold;\">Private<\/span> <span style=\"color: #0000ff; font-weight: bold;\">Sub<\/span> Command_LESEN_Click<span style=\"color: #000000;\">(<\/span><span style=\"color: #000000;\">)<\/span>\r\n<span style=\"color: #008000; font-style: italic;\">'Der Befehl I2C-Data 33 hex = 51 dez.<\/span>\r\n<span style=\"color: #008000; font-style: italic;\">'liest oder schreibt bis zu 128 Bytes vom I2C-Slave<\/span>\r\n<span style=\"color: #0000ff; font-weight: bold;\">Dim<\/span> Adr\r\nAdr <span style=\"color: #000000;\">=<\/span> Combo_AIN_Adresse   <span style=\"color: #008000; font-style: italic;\">'Adresse aus Cobo-Box<\/span>\r\n\r\nSENDBYTE <span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">51<\/span><span style=\"color: #000000;\">)<\/span>       <span style=\"color: #008000; font-style: italic;\">'Befehl 51 = I2C-DATA<\/span>\r\nSENDBYTE <span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">3<\/span><span style=\"color: #000000;\">)<\/span>        <span style=\"color: #008000; font-style: italic;\">'Frame Anzahl = 3<\/span>\r\nSENDBYTE <span style=\"color: #000000;\">(<\/span>Adr <span style=\"color: #000000;\">+<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">1<\/span><span style=\"color: #000000;\">)<\/span>  <span style=\"color: #008000; font-style: italic;\">'Bus-Adresse des I2C-ADC zum Lesen<\/span>\r\nSENDBYTE <span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">0<\/span><span style=\"color: #000000;\">)<\/span>        <span style=\"color: #008000; font-style: italic;\">'Adresse MSB<\/span>\r\nSENDBYTE <span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">11<\/span><span style=\"color: #000000;\">)<\/span>       <span style=\"color: #008000; font-style: italic;\">'11 Byte lesen<\/span>\r\nSENDBYTE <span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">4<\/span><span style=\"color: #000000;\">)<\/span>        <span style=\"color: #008000; font-style: italic;\">'Endekennung<\/span>\r\n\r\n<span style=\"color: #0000ff; font-weight: bold;\">If<\/span> Modem_Antwort <span style=\"color: #000000;\">=<\/span> <span style=\"color: #0000ff; font-weight: bold;\">True<\/span> <span style=\"color: #0000ff; font-weight: bold;\">Then<\/span>\r\n    TextBox_AIN1<span style=\"color: #000000;\">.<\/span><span style=\"color: #000000;\">Text<\/span> <span style=\"color: #000000;\">=<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">3<\/span><span style=\"color: #000000;\">)<\/span> <span style=\"color: #000000;\">*<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">256<\/span> <span style=\"color: #000000;\">+<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">2<\/span><span style=\"color: #000000;\">)<\/span>\r\n    TextBox_AIN2<span style=\"color: #000000;\">.<\/span><span style=\"color: #000000;\">Text<\/span> <span style=\"color: #000000;\">=<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">5<\/span><span style=\"color: #000000;\">)<\/span> <span style=\"color: #000000;\">*<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">256<\/span> <span style=\"color: #000000;\">+<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">4<\/span><span style=\"color: #000000;\">)<\/span>\r\n    TextBox_AIN3<span style=\"color: #000000;\">.<\/span><span style=\"color: #000000;\">Text<\/span> <span style=\"color: #000000;\">=<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">7<\/span><span style=\"color: #000000;\">)<\/span> <span style=\"color: #000000;\">*<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">256<\/span> <span style=\"color: #000000;\">+<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">6<\/span><span style=\"color: #000000;\">)<\/span>\r\n    TextBox_AIN4<span style=\"color: #000000;\">.<\/span><span style=\"color: #000000;\">Text<\/span> <span style=\"color: #000000;\">=<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">9<\/span><span style=\"color: #000000;\">)<\/span> <span style=\"color: #000000;\">*<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">256<\/span> <span style=\"color: #000000;\">+<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">8<\/span><span style=\"color: #000000;\">)<\/span>\r\n    TextBox_AIN5<span style=\"color: #000000;\">.<\/span><span style=\"color: #000000;\">Text<\/span> <span style=\"color: #000000;\">=<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">11<\/span><span style=\"color: #000000;\">)<\/span> <span style=\"color: #000000;\">*<\/span> <span style=\"color: #a52a2a; back-color: #fffacd;\">256<\/span> <span style=\"color: #000000;\">+<\/span> D<span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">10<\/span><span style=\"color: #000000;\">)<\/span>\r\n<span style=\"color: #0000ff; font-weight: bold;\">Else<\/span>\r\n    <span style=\"color: #000066;\">MsgBox<\/span> <span style=\"color: #000000;\">(<\/span><span style=\"color: #a52a2a; back-color: #fffacd;\">\"Fehler bei I2C-AIN\"<\/span><span style=\"color: #000000;\">)<\/span>\r\n<span style=\"color: #0000ff; font-weight: bold;\">End<\/span> <span style=\"color: #0000ff; font-weight: bold;\">If<\/span>\r\n\r\n<span style=\"color: #0000ff; font-weight: bold;\">End<\/span> <span style=\"color: #0000ff; font-weight: bold;\">Sub<\/span><\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Wir haben unser\u00a0Produktspektrum um zwei neue I2C-Baugruppen zum aufschnappen auf die Norm-Hutschiene erweitert. Die Abmessungen der Leiterplatten sind 45,5 mm x 65,5 mm und passen in die WAGO Montagesockel f\u00fcr Kleinplatinen, die auf\u00a0Standard-DIN-Schienen montiert werden k\u00f6nnen. Die Karten gibt es&#8230; <a class=\"continue-reading-link\" href=\"https:\/\/www.horter.de\/blog\/i2c-analog-input-5-kanaele-10-bit\/\">mehr lesen<\/a><\/p>\n","protected":false},"author":3,"featured_media":28246,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[82,81,83,40,79,86,67,80,7,77,78,76,84,85,87,88],"class_list":["post-551","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-i2c-baugruppen","tag-10-bit","tag-analog","tag-analogwert","tag-arduino","tag-ausgabe","tag-ausgang","tag-eingabe","tag-eingang","tag-i2c","tag-i2c-input","tag-i2c-output","tag-i2c-module","tag-raspberri","tag-raspberry-pi","tag-schalten","tag-signal"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>I2C-Analog Input 5 Kan\u00e4le 0-10V 10 Bit - Horter &amp; Kalb Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.horter.de\/blog\/i2c-analog-input-5-kanaele-10-bit\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"I2C-Analog Input 5 Kan\u00e4le 0-10V 10 Bit - Horter &amp; Kalb Blog\" \/>\n<meta property=\"og:description\" content=\"Wir haben unser\u00a0Produktspektrum um zwei neue I2C-Baugruppen zum aufschnappen auf die Norm-Hutschiene erweitert. 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