{"id":2278,"date":"2025-04-15T09:28:55","date_gmt":"2025-04-15T09:28:55","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&#038;p=2278"},"modified":"2025-06-11T05:38:30","modified_gmt":"2025-06-11T05:38:30","slug":"forcecoil-5-slaveaddr-coiladdr16-spaddr16","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/communications-instructions\/modbus-instructions\/modbus-master-control-script-commands\/forcecoil-5-slaveaddr-coiladdr16-spaddr16\/","title":{"rendered":"ForceCoil &#8211; 5, SlaveAddr, CoilAddr16, SPAddr16"},"content":{"rendered":"\n<p>A ModBus Master script command<\/p>\n\n\n\n<p>When processed this command will result in the SPLat master sending out a ModBus function 5 query (Force single coil), then wait for the response.<\/p>\n\n\n\n<p>Parameters are:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Item<\/th><th>Bit Length<\/th><th>Description<\/th><\/tr><tr><th>SlaveAddr<\/th><td>8<\/td><td>An 8-bit slave address<\/td><\/tr><tr><th>CoilAddr16<\/th><td>16<\/td><td>The 16-bit, 0-based address of a coil (0xxxx reference) in the slave.<\/td><\/tr><tr><th>SPAddr16<\/th><td>16<\/td><td>A 16-bit semaphore address within the SPLat master&#8217;s\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/glossary-of-terms\/#o414\">RAM<\/a>, counting from RAM byte 0, bit 0. For example, RAM byte 34, bit 5 would be 34&#215;8 + 5 = 277. The value of this semaphore will be forced into the selected coil in the slave.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>A ModBus Master script command When processed this command will result in the SPLat master sending out a ModBus function 5 query (Force single coil),&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2271,"menu_order":5,"template":"","class_list":["post-2278","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ForceCoil - 5, SlaveAddr, CoilAddr16, SPAddr16 - SPLat Controls<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ForceCoil - 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