{"id":1957,"date":"2025-12-17T15:31:54","date_gmt":"2025-12-17T07:31:54","guid":{"rendered":"https:\/\/ksxiqian.cn\/?p=1957"},"modified":"2026-06-05T15:09:48","modified_gmt":"2026-06-05T07:09:48","slug":"new-siemens-plc-module-6es7521-1bh50-0aa0-s7-1500-siemens-expansion-module","status":"publish","type":"post","link":"https:\/\/ksxiqian.cn\/?p=1957","title":{"rendered":"New Original Siemens 6ES7521-1BH50-0AA0 SM521 DI16\u00d724VDC Sourcing Digital Input Expansion Module For S7-1500 PLC"},"content":{"rendered":"\n<p class=\"has-medium-font-size wp-block-paragraph\">We supply brand new original sealed Siemens 6ES7521-1BH50-0AA0 (SM521 Basic BA) digital input module matching SIMATIC S7-1500 PLC system. <strong>Core Spec<\/strong>:16-channel DC24V sourcing input(Type3 IEC61131),single group 16 points,typical input delay 3.2ms,working voltage range DC19.2~28.8V. With optoelectronic isolation between backplane bus and field side; support channel fault diagnosis for open circuit,LED status indication; IP20 protection, DIN rail backplane mounting, front connector(screw\/push-in type) purchased separately. Perfect for standard DC proximity switch,relay feedback signal acquisition for machinery,water treatment and general factory automation.12-month manufacturer warranty,global bulk order delivery available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We supply brand new original sealed Siem&hellip;<\/p>\n","protected":false},"author":1,"featured_media":1819,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26],"tags":[],"class_list":["post-1957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-s7-1500"],"acf":[],"_links":{"self":[{"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1957","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1957"}],"version-history":[{"count":2,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1957\/revisions"}],"predecessor-version":[{"id":9099,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1957\/revisions\/9099"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/media\/1819"}],"wp:attachment":[{"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}