{"product_id":"yokogawa-model-ea1a-plc-module-as-e9740aa-04","title":"YOKOGAWA MODEL EA1A PLC MODULE AS E9740AA-04","description":"\u003ch3 data-section-id=\"1vt381m\" data-start=\"0\" data-end=\"22\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"4\" data-end=\"20\"\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"23\" data-end=\"473\"\u003eThe Yokogawa EA1A PLC Module AS-E9740AA-04 is used in distributed control systems for \u003ca href=\"https:\/\/plgautomation.com\/collections\/plcs-more\"\u003esignal isolation\u003c\/a\u003e and interface between control circuits and field devices. Commonly installed in Yokogawa PLC and DCS cabinets for signal conditioning and system protection. Maintenance teams and system integrators use this part for isolating control signals, replacing legacy interface modules, or maintaining stable communication between system components.\u003c\/p\u003e\n\u003ch3 data-section-id=\"10m4hth\" data-start=\"475\" data-end=\"498\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"479\" data-end=\"496\"\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"499\" data-end=\"1006\"\u003eThe Yokogawa EA1A module is commonly used in industrial automation environments where signal isolation and conditioning are required between control systems and field instrumentation. It is frequently applied in oil \u0026amp; gas, power generation, and manufacturing systems to protect PLC\/DCS inputs from electrical noise, surges, or ground loops. Isolation modules like this ensure reliable signal transmission and improve system stability in harsh industrial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"12f0hz5\" data-start=\"1008\" data-end=\"1043\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1012\" data-end=\"1041\"\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1044\" data-end=\"1757\"\u003e• Manufacturer: Yokogawa\u003cbr data-start=\"1068\" data-end=\"1071\"\u003e• Model \/ Part Number: EA1A \/ AS-E9740AA-04\u003cbr data-start=\"1114\" data-end=\"1117\"\u003e• Product Type: PLC Module \/ Signal Isolator Module\u003cbr data-start=\"1168\" data-end=\"1171\"\u003e• Function: Signal isolation and interface between field and control system \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1284\" data-end=\"1287\"\u003e• System Compatibility: Yokogawa PLC \/ DCS systems\u003cbr data-start=\"1337\" data-end=\"1340\"\u003e• Input\/Output Type: Analog or discrete signal interface (application dependent)\u003cbr data-start=\"1420\" data-end=\"1423\"\u003e• Installation: Rack or panel-mounted within control cabinets\u003cbr data-start=\"1484\" data-end=\"1487\"\u003e• Construction: Industrial-grade module for electrical protection\u003cbr data-start=\"1552\" data-end=\"1555\"\u003e• Role: Reduces noise, prevents ground loops, and protects sensitive electronics\u003cbr data-start=\"1635\" data-end=\"1638\"\u003e• Application: Signal conditioning and isolation in automation systems\u003cbr data-start=\"1708\" data-end=\"1711\"\u003e• Status: Legacy \/ surplus industrial module\u003c\/p\u003e\n\u003ch3 data-section-id=\"uqv3ss\" data-start=\"1759\" data-end=\"1789\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1763\" data-end=\"1787\"\u003eCommon Replacements:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1790\" data-end=\"1904\"\u003e• Yokogawa \u003ca href=\"https:\/\/plgautomation.com\/products\/yokogawa-as-e9740ea-04-ea0a-plc-module?_pos=2\u0026amp;_sid=e86d0db98\u0026amp;_ss=r\"\u003eEA0A \u003c\/a\u003eIsolator Module\u003cbr data-start=\"1821\" data-end=\"1824\"\u003e• Yokogawa AAI143 Analog Input Module\u003cbr data-start=\"1861\" data-end=\"1864\"\u003e• Yokogawa \u003ca href=\"https:\/\/plgautomation.com\/products\/yokogawa-adv151-p63-adv151-digital-input-module-save?_pos=1\u0026amp;_sid=7005d8bce\u0026amp;_ss=r\"\u003eADV151 \u003c\/a\u003eDigital Input Module\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"New","offer_id":51734671753518,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_78dc4cbc-fb40-43ab-87dd-da854c54e3a9.jpg?v=1770606877","url":"https:\/\/plgautomation.com\/products\/yokogawa-model-ea1a-plc-module-as-e9740aa-04","provider":"PLG Automation ","version":"1.0","type":"link"}