{"id":331,"date":"2010-02-05T05:51:16","date_gmt":"2010-02-05T05:51:16","guid":{"rendered":"http:\/\/ravtrack.com\/GPStracking\/?p=331"},"modified":"2010-02-05T05:51:16","modified_gmt":"2010-02-05T05:51:16","slug":"identifying-digital-input-states-in-a-prave-message","status":"publish","type":"post","link":"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/","title":{"rendered":"Identifying Digital Input States in a $PRAVE message"},"content":{"rendered":"

The $PRAVE message has the status of each input as represented by a single digit hexadecimal number in field 12. For example, the the $PRAVE message below, the last 3<\/span> represents the digital inputs from transponder 0001.<\/p>\n

$PRAVE,0001,0001,3308.9051,-11713.1164,195348,1,10,168,31,13.3,3<\/strong><\/span>,-83,0,0,,*66<\/p>\n

In this example field 12 has value 3.\u00a0 The field 12 value is the hexadecimal binary representation of the bits.\u00a0 Refer to the following table:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
\n

IN 2
\n<\/em><\/strong>(TXD)<\/em><\/strong> <\/em><\/strong><\/td>\n

\n

IN 1
\n<\/em><\/strong>(RTS)<\/em><\/strong> <\/em><\/strong><\/td>\n

\n

IN 0
\n<\/em><\/strong>(DTR)<\/em><\/strong> <\/em><\/strong><\/td>\n

\n

Hexadecimal Representation<\/em><\/strong> <\/em><\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

0<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n<\/tr>\n

\n

0<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n<\/tr>\n

\n

0<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

2<\/p>\n<\/td>\n<\/tr>\n

\n

0<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

3<\/p>\n<\/td>\n<\/tr>\n

\n

1<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

4<\/p>\n<\/td>\n<\/tr>\n

\n

1<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

5<\/p>\n<\/td>\n<\/tr>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

0<\/p>\n<\/td>\n

\n

6<\/p>\n<\/td>\n<\/tr>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

7<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The stock RV-M7 GX<\/em> has up to 3 digital inputs, using the input pins of the RS-232 serial port.\u00a0 An open circuit or ground is a 0, and if they are connected to a positive voltage greater than 3V, they are a digital 1. <\/strong>If all 3 pins are allowed to float (nothing connected \u2013 same as ground) the value should be 0.\u00a0 If positive voltage is applied to a pin the pin value will be 1.\u00a0 The field 12 value will be 1 or 2 or 4, depending on which pin had the voltage applied. <\/strong><\/p>\n

<\/strong><\/p>\n\n\n\n\n\n\n\n
\n

RS-232 Pin<\/strong> <\/strong><\/p>\n<\/td>\n

\n

Function<\/strong> <\/strong><\/p>\n<\/td>\n

\n

<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

4 – DTR<\/p>\n<\/td>\n

\n

Input 0<\/p>\n<\/td>\n

\n

\n<\/td>\n<\/tr>\n

\n

7 – RTS<\/p>\n<\/td>\n

\n

Input 1<\/p>\n<\/td>\n

\n

\n<\/td>\n<\/tr>\n

\n

3 – TXD<\/p>\n<\/td>\n

\n

Input 2<\/p>\n<\/td>\n

\n

\n<\/td>\n<\/tr>\n

\n

5 – Ground<\/p>\n<\/td>\n

\n

GND<\/p>\n<\/td>\n

\n

Connect to vehicle chassis or other ground point.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Note that the weatherproofed (-WX) model has less RS-232 pins and only 2 digital inputs.\u00a0 Inputs 1 and 2 are valid, but input 0 is indeterminate (state can float).<\/p>\n

In the RavTrack PC software it is easy to not monitor this missing pin<\/span>, so any change of state or change of value of this pin would not matter to the software.\u00a0 Simply configure this input as unused.<\/p>\n

\"1aa\"<\/p>\n\n\n\n\n\n\n
\n

RS-232 Pin<\/strong><\/p>\n<\/td>\n

\n

Function<\/strong><\/p>\n<\/td>\n

\n

<\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

4 – RTS<\/p>\n<\/td>\n

\n

Input 1<\/p>\n<\/td>\n

\n

\n<\/td>\n<\/tr>\n

\n

3 – TXD<\/p>\n<\/td>\n

\n

Input 2<\/p>\n<\/td>\n

\n

\n<\/td>\n<\/tr>\n

\n

5 – Ground<\/p>\n<\/td>\n

\n

GND<\/p>\n<\/td>\n

\n

Connect to vehicle chassis or other ground point.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

On the M7 series of transponders, if an input is left floating\/unconnected, the transponder will read it as a digital 0 (low), and report it this way.<\/p>\n","protected":false},"excerpt":{"rendered":"

The $PRAVE message has the status of each input as represented by a single digit hexadecimal number in field 12. For example, the the $PRAVE message below, the last 3 represents the digital inputs from transponder 0001. $PRAVE,0001,0001,3308.9051,-11713.1164,195348,1,10,168,31,13.3,3,-83,0,0,,*66 In this…<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"yoast_head":"\nIdentifying Digital Input States in a $PRAVE message - GPS Tracking - RavTrack Complete Real Time Tracking<\/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:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Identifying Digital Input States in a $PRAVE message - GPS Tracking - RavTrack Complete Real Time Tracking\" \/>\n<meta property=\"og:description\" content=\"The $PRAVE message has the status of each input as represented by a single digit hexadecimal number in field 12. For example, the the $PRAVE message below, the last 3 represents the digital inputs from transponder 0001. $PRAVE,0001,0001,3308.9051,-11713.1164,195348,1,10,168,31,13.3,3,-83,0,0,,*66 In this…\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/\" \/>\n<meta property=\"og:site_name\" content=\"GPS Tracking - RavTrack Complete Real Time Tracking\" \/>\n<meta property=\"article:published_time\" content=\"2010-02-05T05:51:16+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/ravtrack.com\/GPStracking\/wp-content\/uploads\/2010\/02\/1aa.jpg\" \/>\n<meta name=\"author\" content=\"JS\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"JS\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/\",\"url\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/\",\"name\":\"Identifying Digital Input States in a $PRAVE message - GPS Tracking - RavTrack Complete Real Time Tracking\",\"isPartOf\":{\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/ravtrack.com\/GPStracking\/wp-content\/uploads\/2010\/02\/1aa.jpg\",\"datePublished\":\"2010-02-05T05:51:16+00:00\",\"dateModified\":\"2010-02-05T05:51:16+00:00\",\"author\":{\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/#\/schema\/person\/a5c8be48c037158a55b9d456dd065931\"},\"breadcrumb\":{\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/#primaryimage\",\"url\":\"https:\/\/ravtrack.com\/GPStracking\/wp-content\/uploads\/2010\/02\/1aa.jpg\",\"contentUrl\":\"https:\/\/ravtrack.com\/GPStracking\/wp-content\/uploads\/2010\/02\/1aa.jpg\",\"width\":\"1150\",\"height\":\"536\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ravtrack.com\/GPStracking\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Identifying Digital Input States in a $PRAVE message\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/#website\",\"url\":\"https:\/\/ravtrack.com\/GPStracking\/\",\"name\":\"GPS Tracking - RavTrack Complete Real Time Tracking\",\"description\":\"GPS Tracking System Blogs Articles News\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ravtrack.com\/GPStracking\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/#\/schema\/person\/a5c8be48c037158a55b9d456dd065931\",\"name\":\"JS\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/ravtrack.com\/GPStracking\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/81e959a1edf11a7ce64aef82d8c9c5e7?s=96&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/81e959a1edf11a7ce64aef82d8c9c5e7?s=96&r=g\",\"caption\":\"JS\"},\"url\":\"https:\/\/ravtrack.com\/GPStracking\/author\/js\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Identifying Digital Input States in a $PRAVE message - GPS Tracking - RavTrack Complete Real Time Tracking","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ravtrack.com\/GPStracking\/identifying-digital-input-states-in-a-prave-message\/","og_locale":"en_US","og_type":"article","og_title":"Identifying Digital Input States in a $PRAVE message - GPS Tracking - RavTrack Complete Real Time Tracking","og_description":"The $PRAVE message has the status of each input as represented by a single digit hexadecimal number in field 12. 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