{"product_id":"siemens-6es7231-7pb22-0xa0-simatic-s7-200-em-231-rtd-analog-input-module","title":"Siemens 6ES7231-7PB22-0XA0 SIMATIC S7-200 EM 231 RTD Analog Input Module","description":"\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #e2e8f0; padding-bottom: 8px; margin-bottom: 16px;\"\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748;\"\u003eThe Siemens 6ES7231-7PB22-0XA0 is an EM 231 analog input module designed for the SIMATIC S7-200 PLC series. This module provides specialized temperature measurement capabilities by processing signals from Resistance Temperature Detectors (RTDs). It features \u003cstrong\u003e2 independent input channels\u003c\/strong\u003e that convert resistance changes from RTD sensors into digital values, enabling precise temperature monitoring and control. The module integrates directly with the S7-200 system, offering a compact solution for expanding analog input functionality without requiring external signal conditioning equipment.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #e2e8f0; padding-bottom: 8px; margin-bottom: 16px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0; color: #2d3748;\"\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eSpecifically designed for the SIMATIC S7-200 PLC family.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eProvides two dedicated analog input channels.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eSupports direct connection of RTD temperature sensors.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eIncludes onboard signal conditioning for accurate measurement.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eFeatures diagnostic capabilities for monitoring sensor status and signal integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #e2e8f0; padding-bottom: 8px; margin-bottom: 16px;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0; color: #2d3748;\"\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eProcess control systems requiring precise thermal regulation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eManufacturing automation for equipment protection and quality control.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eEnvironmental control and monitoring systems.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color: #2b6cb0; margin-right: 8px; font-size: 1.2em; line-height: 1;\"\u003e■\u003c\/span\u003eHVAC and building management systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #e2e8f0; padding-bottom: 8px; margin-bottom: 16px;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; color: #2d3748;\"\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth style=\"border: 1px solid #e2e8f0; padding: 10px 12px; text-align: left; background-color: #f7fafc; font-weight: 600;\"\u003eSpecification\u003c\/th\u003e\n                \u003cth style=\"border: 1px solid #e2e8f0; padding: 10px 12px; text-align: left; background-color: #f7fafc; font-weight: 600;\"\u003eValue\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eManufacturer\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eSiemens\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003ePart Number\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003e6ES7231-7PB22-0XA0\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eProduct Family\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eSIMATIC S7-200\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eModule Series\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eEM 231\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eModule Type\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eAnalog Input Module\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eInput Type\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eRTD (Resistance Temperature Detector)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eNumber of Channels\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003e2\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eProduct Lifecycle Status\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eActive\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eCondition\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eBrand New\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eProduct Dimensions\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003e7.6 cm x 10.2 cm x 7.6 cm\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eProduct Weight\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003e0.1 kg\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eCountry of Origin\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eGermany\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003eHS Code\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003e8537101190\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n                \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px 12px;\"\u003e10 x 12 x 10 cm\u003c\/td\u003e\n            \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #e2e8f0; padding-bottom: 8px; margin-bottom: 16px; margin-top: 24px;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 5px solid #c53030; padding: 16px; margin-bottom: 20px;\"\u003e\n    \u003cp style=\"color: #c53030; font-weight: bold; margin-top: 0; margin-bottom: 0;\"\u003eCRITICAL WARNING: Electrical Hazard\u003c\/p\u003e\n    \u003cp style=\"color: #2d3748; margin-top: 8px; margin-bottom: 0;\"\u003eDisconnect all power sources to the PLC rack and verify system de-energization using a calibrated voltmeter before handling, installing, or removing this module. Failure to comply can result in severe injury, death, or equipment damage. Follow all applicable Lockout\/Tagout (LOTO) procedures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003col style=\"list-style: none; padding-left: 0; counter-reset: step-counter; color: #2d3748;\"\u003e\n    \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 16px; counter-increment: step-counter;\"\u003e\n        \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: white; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e\n            \u003cspan style=\"font-size: 14px;\"\u003e1\u003c\/span\u003e\n        \u003c\/span\u003e\n        \u003cspan\u003e\n            \u003cstrong\u003eDe-energize System:\u003c\/strong\u003e Ensure the SIMATIC S7-200 PLC system is completely powered down and locked out.\n        \u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 16px; counter-increment: step-counter;\"\u003e\n        \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: white; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e\n            \u003cspan style=\"font-size: 14px;\"\u003e2\u003c\/span\u003e\n        \u003c\/span\u003e\n        \u003cspan\u003e\n            \u003cstrong\u003eMount Module:\u003c\/strong\u003e Align the module with an available slot on the S7-200 I\/O bus. Firmly press the module onto the bus connector until it securely clicks into place.\n        \u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 16px; counter-increment: step-counter;\"\u003e\n        \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: white; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e\n            \u003cspan style=\"font-size: 14px;\"\u003e3\u003c\/span\u003e\n        \u003c\/span\u003e\n        \u003cspan\u003e\n            \u003cstrong\u003eConnect Sensor Wiring:\u003c\/strong\u003e Terminate the RTD sensor leads at the module's terminal block. Use shielded, twisted-pair instrumentation cable for all sensor connections to minimize electrical noise interference.\n        \u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 16px; counter-increment: step-counter;\"\u003e\n        \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: white; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e\n            \u003cspan style=\"font-size: 14px;\"\u003e4\u003c\/span\u003e\n        \u003c\/span\u003e\n        \u003cspan\u003e\n            \u003cstrong\u003eGround Cable Shield:\u003c\/strong\u003e Connect the cable shield's drain wire to the designated chassis ground terminal at the PLC end only. Do not connect the shield at the sensor end to prevent ground loops.\n        \u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli style=\"display: flex; align-items: flex-start; margin-bottom: 16px; counter-increment: step-counter;\"\u003e\n        \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: white; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e\n            \u003cspan style=\"font-size: 14px;\"\u003e5\u003c\/span\u003e\n        \u003c\/span\u003e\n        \u003cspan\u003e\n            \u003cstrong\u003eSystem Power-Up:\u003c\/strong\u003e After verifying all connections, remove LOTO devices and re-apply power to the system. Configure the new module within the PLC programming software to match the connected RTD sensor types.\n        \u003c\/span\u003e\n    \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52695215047019,"sku":"6ES7231-7PB22-0XA0","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/siemens-6es7231-7pb22-0xa0-analog-input-module-3bzy4fxiki3_42166e8b-501e-448a-8803-a0b8e59f4998.jpg?v=1766130907","url":"https:\/\/www.plcprotech.com\/products\/siemens-6es7231-7pb22-0xa0-simatic-s7-200-em-231-rtd-analog-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}