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what is KNX

In order to transfer control data to all building management components, a system is required that does away with the problems of isolated devices by ensuring that all components communicate via one common language

KNX is the world’s only open standard for home and building control and is compliant to:

  • EN 50090
  • EN 13321-1
  • ISO/IEC 14543

KNX is the solution for your project

Error
  • Got error 28 from storage engine SQL=SELECT a.id, a.title, a.alias, a.title_alias, a.introtext, a.catid, a.created, a.created_by, a.created_by_alias, CASE WHEN a.modified = 0 THEN a.created ELSE a.modified END as modified, a.modified_by, uam.name as modified_by_name,CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END as publish_up, a.publish_down, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, LENGTH(a.fulltext) AS readmore ,CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author,ua.email AS author_email,contact.id as contactid,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND( v.rating_sum / v.rating_count ) AS rating, v.rating_count as rating_count,c.published, CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published FROM jos_content AS a LEFT JOIN jos_categories AS c ON c.id = a.catid LEFT JOIN jos_users AS ua ON ua.id = a.created_by LEFT JOIN jos_users AS uam ON uam.id = a.modified_by LEFT JOIN jos_contact_details AS contact on contact.user_id = a.created_by LEFT JOIN jos_categories as parent ON parent.id = c.parent_id LEFT JOIN jos_content_rating AS v ON a.id = v.content_id LEFT OUTER JOIN (SELECT cat.id as id FROM jos_categories AS cat JOIN jos_categories AS parent ON cat.lft BETWEEN parent.lft AND parent.rgt WHERE parent.extension = 'com_content' AND parent.published != 1 GROUP BY cat.id ) AS badcats ON badcats.id = c.id INNER JOIN jos_content_frontpage AS fp ON fp.content_id = a.id WHERE a.access IN (1,1) AND CASE WHEN badcats.id is null THEN a.state ELSE 0 END = 1 AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2015-04-19 03:01:14') AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2015-04-19 03:01:14') ORDER BY c.lft, CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END DESC , a.created DESC LIMIT 0, 9 Got error 28 from storage engine SQL=SELECT a.id, a.title, a.alias, a.title_alias, a.introtext, a.catid, a.created, a.created_by, a.created_by_alias, CASE WHEN a.modified = 0 THEN a.created ELSE a.modified END as modified, a.modified_by, uam.name as modified_by_name,CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END as publish_up, a.publish_down, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, LENGTH(a.fulltext) AS readmore ,CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author,ua.email AS author_email,contact.id as contactid,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND( v.rating_sum / v.rating_count ) AS rating, v.rating_count as rating_count,c.published, CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published FROM jos_content AS a LEFT JOIN jos_categories AS c ON c.id = a.catid LEFT JOIN jos_users AS ua ON ua.id = a.created_by LEFT JOIN jos_users AS uam ON uam.id = a.modified_by LEFT JOIN jos_contact_details AS contact on contact.user_id = a.created_by LEFT JOIN jos_categories as parent ON parent.id = c.parent_id LEFT JOIN jos_content_rating AS v ON a.id = v.content_id LEFT OUTER JOIN (SELECT cat.id as id FROM jos_categories AS cat JOIN jos_categories AS parent ON cat.lft BETWEEN parent.lft AND parent.rgt WHERE parent.extension = 'com_content' AND parent.published != 1 GROUP BY cat.id ) AS badcats ON badcats.id = c.id INNER JOIN jos_content_frontpage AS fp ON fp.content_id = a.id WHERE a.access IN (1,1) AND CASE WHEN badcats.id is null THEN a.state ELSE 0 END = 1 AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2015-04-19 03:01:14') AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2015-04-19 03:01:14') ORDER BY c.lft, CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END DESC , a.created DESC
Error
  • Got error 28 from storage engine SQL=SELECT a.id, a.title, a.alias, a.title_alias, a.introtext, a.catid, a.created, a.created_by, a.created_by_alias, CASE WHEN a.modified = 0 THEN a.created ELSE a.modified END as modified, a.modified_by, uam.name as modified_by_name,CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END as publish_up, a.publish_down, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, LENGTH(a.fulltext) AS readmore ,CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author,ua.email AS author_email,contact.id as contactid,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND( v.rating_sum / v.rating_count ) AS rating, v.rating_count as rating_count,c.published, CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published FROM jos_content AS a LEFT JOIN jos_categories AS c ON c.id = a.catid LEFT JOIN jos_users AS ua ON ua.id = a.created_by LEFT JOIN jos_users AS uam ON uam.id = a.modified_by LEFT JOIN jos_contact_details AS contact on contact.user_id = a.created_by LEFT JOIN jos_categories as parent ON parent.id = c.parent_id LEFT JOIN jos_content_rating AS v ON a.id = v.content_id LEFT OUTER JOIN (SELECT cat.id as id FROM jos_categories AS cat JOIN jos_categories AS parent ON cat.lft BETWEEN parent.lft AND parent.rgt WHERE parent.extension = 'com_content' AND parent.published != 1 GROUP BY cat.id ) AS badcats ON badcats.id = c.id INNER JOIN jos_content_frontpage AS fp ON fp.content_id = a.id WHERE a.access IN (1,1) AND CASE WHEN badcats.id is null THEN a.state ELSE 0 END = 1 AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2015-04-19 03:01:14') AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2015-04-19 03:01:14') ORDER BY c.lft, CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END DESC , a.created DESC LIMIT 0, 9 Got error 28 from storage engine SQL=SELECT a.id, a.title, a.alias, a.title_alias, a.introtext, a.catid, a.created, a.created_by, a.created_by_alias, CASE WHEN a.modified = 0 THEN a.created ELSE a.modified END as modified, a.modified_by, uam.name as modified_by_name,CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END as publish_up, a.publish_down, a.attribs, a.metadata, a.metakey, a.metadesc, a.access, a.hits, a.xreference, a.featured, LENGTH(a.fulltext) AS readmore ,CASE WHEN badcats.id is not null THEN 0 ELSE a.state END AS state,c.title AS category_title, c.path AS category_route, c.access AS category_access, c.alias AS category_alias,CASE WHEN a.created_by_alias > ' ' THEN a.created_by_alias ELSE ua.name END AS author,ua.email AS author_email,contact.id as contactid,parent.title as parent_title, parent.id as parent_id, parent.path as parent_route, parent.alias as parent_alias,ROUND( v.rating_sum / v.rating_count ) AS rating, v.rating_count as rating_count,c.published, CASE WHEN badcats.id is null THEN c.published ELSE 0 END AS parents_published FROM jos_content AS a LEFT JOIN jos_categories AS c ON c.id = a.catid LEFT JOIN jos_users AS ua ON ua.id = a.created_by LEFT JOIN jos_users AS uam ON uam.id = a.modified_by LEFT JOIN jos_contact_details AS contact on contact.user_id = a.created_by LEFT JOIN jos_categories as parent ON parent.id = c.parent_id LEFT JOIN jos_content_rating AS v ON a.id = v.content_id LEFT OUTER JOIN (SELECT cat.id as id FROM jos_categories AS cat JOIN jos_categories AS parent ON cat.lft BETWEEN parent.lft AND parent.rgt WHERE parent.extension = 'com_content' AND parent.published != 1 GROUP BY cat.id ) AS badcats ON badcats.id = c.id INNER JOIN jos_content_frontpage AS fp ON fp.content_id = a.id WHERE a.access IN (1,1) AND CASE WHEN badcats.id is null THEN a.state ELSE 0 END = 1 AND (a.publish_up = '0000-00-00 00:00:00' OR a.publish_up <= '2015-04-19 03:01:14') AND (a.publish_down = '0000-00-00 00:00:00' OR a.publish_down >= '2015-04-19 03:01:14') ORDER BY c.lft, CASE WHEN a.publish_up = 0 THEN a.created ELSE a.publish_up END DESC , a.created DESC

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Our Members

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Training

For contact information, click here.

Announcement

21.11.2013

NECA and the KNX National Group recently announced a co-operation to promote the use of compatible platforms across the electrical industry. Read more.

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integrate expo 2014 - BUILDING AUTOMATION - CONTROL

Did you Know?

Unlike proprietary systems KNX devices from various manufacturers all talk together


 

KNX Media Release


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KNX International News


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KNX Australia News


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