{"id":64,"date":"2026-07-19T18:55:40","date_gmt":"2026-07-19T18:55:40","guid":{"rendered":"https:\/\/glorious-techbd.com\/?p=64"},"modified":"2026-07-19T18:55:40","modified_gmt":"2026-07-19T18:55:40","slug":"plc-vs-relay-logic-when-is-it-time-to-retrofit-your-old-machines","status":"publish","type":"post","link":"https:\/\/glorious-techbd.com\/?p=64","title":{"rendered":"PLC vs Relay Logic: When Is It Time to Retrofit Your Old Machines?"},"content":{"rendered":"<p>Hundreds of machines in Bangladeshi factories still run on hard-wired relay panels. They work \u2014 until they don&#8217;t. Here&#8217;s how we advise clients to decide when a PLC retrofit makes sense:<\/p>\n<p><strong>Retrofit now if:<\/strong> spare relays are hard to find, fault-finding takes hours, you need recipe or batch changes, or the machine causes more than two hours of downtime per month.<\/p>\n<p><strong>Wait if:<\/strong> the machine is simple, spares are plentiful and it rarely fails.<\/p>\n<p>A typical single-machine retrofit with a Siemens S7-1200 or Mitsubishi FX5U, a 7-inch HMI and clean rewiring costs far less than one week of lost production \u2014 and pays back through faster changeovers and easier troubleshooting.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hundreds of machines in Bangladeshi factories still run on hard-wired relay panels. They work \u2014 until they don&#8217;t. Here&#8217;s how we advise clients to decide when a PLC retrofit makes sense: Retrofit now if: spare relays are hard to find, fault-finding takes hours, you need recipe or batch changes, or the machine causes more than [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-64","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=\/wp\/v2\/posts\/64","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=64"}],"version-history":[{"count":0,"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=\/wp\/v2\/posts\/64\/revisions"}],"wp:attachment":[{"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=64"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=64"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/glorious-techbd.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=64"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}