{"id":1942,"date":"2025-12-17T15:23:47","date_gmt":"2025-12-17T07:23:47","guid":{"rendered":"https:\/\/ksxiqian.cn\/?p=1942"},"modified":"2026-06-05T15:17:10","modified_gmt":"2026-06-05T07:17:10","slug":"new-siemens-plc-module-6es7521-1bp00-0aa0-s7-1500-siemens-expansion-module","status":"publish","type":"post","link":"https:\/\/ksxiqian.cn\/?p=1942","title":{"rendered":"New Original Siemens 6ES7521-1BP00-0AA0 SM521 64DI 24VDC Sink\/Source 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 Siemens 6ES7521-1BP00-0AA0 SM521 high-density digital input module dedicated to SIMATIC S7-1500 PLC system. 64-channel DC24V dual-purpose input (Sinking + Sourcing universal), divided into 4 groups \u00d716 channels, fixed typical input delay 3.2ms, complies with IEC61131 Type3 specification. With optoelectronic isolation between backplane bus and field circuit, supports single-channel open\/short circuit diagnostic function, LED channel status indication. Module width 35mm, DIN rail backplane installation, IP20 protection; front terminal connector &amp; connecting cable need separate purchase as accessories. Typical power loss 4.8W, stable performance for large-scale proximity switch, limit switch signal collection in packaging, logistics conveying, automotive equipment automation. Original factory sealed package, 12-month official warranty, global bulk order &amp; worldwide shipping available.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We supply brand new original Siemens 6ES&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-1942","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\/1942","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=1942"}],"version-history":[{"count":2,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1942\/revisions"}],"predecessor-version":[{"id":9106,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1942\/revisions\/9106"}],"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=1942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}