{"id":1945,"date":"2025-12-17T15:25:08","date_gmt":"2025-12-17T07:25:08","guid":{"rendered":"https:\/\/ksxiqian.cn\/?p=1945"},"modified":"2026-06-05T15:16:22","modified_gmt":"2026-06-05T07:16:22","slug":"supply-siemens-plc-module-6es7521-1bl00-0ab0-s7-1500-siemens-expansion-module","status":"publish","type":"post","link":"https:\/\/ksxiqian.cn\/?p=1945","title":{"rendered":"Supply Original Siemens 6ES7521-1BL00-0AB0 SM521 32DI 24VDC Sinking Digital Input Expansion Module With Push-in Connector For S7-1500 PLC"},"content":{"rendered":"\n<p class=\"has-medium-font-size wp-block-paragraph\">We supply brand new original Siemens 6ES7521-1BL00-0AB0 (SM521) digital input module exclusively for SIMATIC S7-1500 PLC. 32-channel 24VDC sinking input complying with IEC Type3 standard, typical input delay 3.2ms, programmable filter time from 0.1ms to 20ms. Factory pre-installed push-in spring front connector for quick field wiring. Optoelectronic isolation between internal bus and field circuit, supports per-channel fault diagnosis for wire break and short circuit, LED status indication, IP20 protection, backplane DIN rail mounting. Suitable for large-volume limit switch and proximity signal collection in general industrial automation. Original sealed package with 12-month manufacturer warranty, support bulk order and global delivery.<\/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-1945","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\/1945","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=1945"}],"version-history":[{"count":2,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1945\/revisions"}],"predecessor-version":[{"id":9105,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=\/wp\/v2\/posts\/1945\/revisions\/9105"}],"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=1945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksxiqian.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}