{"product_id":"abb-1tna920611r0002-m102-m-modbus-rtu-module","title":"ABB 1TNA920611R0002 M102-M MODBUS RTU Module","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eABB 1TNA920611R0002\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eM102-M\u003c\/strong\u003e MODBUS RTU module, is designed for current transformer (CT) monitoring and digital input integration in industrial automation systems. It supports CT ranges from 0.24 A to 63.0 A and operates with a 24 VDC auxiliary supply, providing MODBUS RTU communication for distributed control applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHardware Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eProduct ID:\u003c\/strong\u003e 1TNA920611R0002\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e ABB Industrial Systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e M102-M\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e MODBUS RTU Module\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eCT Range:\u003c\/strong\u003e 0.24–63.0 A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eDigital Input Supply:\u003c\/strong\u003e 24 VDC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eAuxiliary Supply:\u003c\/strong\u003e 24 VDC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e India, China\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eGross Weight:\u003c\/strong\u003e 960 g (Net)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e Not specified (standard industrial range assumed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN-rail compatible (typical for ABB modules)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eManual Reference:\u003c\/strong\u003e ABB datasheet (GEI-100467 equivalent not provided)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProfinet \/ EtherNet\/IP Deterministic Networks\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe M102-M module communicates via MODBUS RTU protocol, ensuring deterministic data transfer across industrial networks. Integration with ABB Infi 90 and related systems allows scalable I\/O density and firmware flash compatibility. Backplane bus communication velocity is optimized for CT signal acquisition and digital input synchronization, maintaining accuracy across distributed installations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eQ: What CT ranges are supported by the M102-M module? A: The module supports CT ranges from 0.24 A to 63.0 A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eQ: Does the module require an auxiliary supply? A: Yes. It operates with a 24 VDC auxiliary supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eQ: Can the module be integrated into redundant MODBUS RTU networks? A: Yes. MODBUS RTU supports redundant communication paths when configured with appropriate master-slave topology.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eField Installation Guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\u003cspan\u003eMount the module on a DIN rail within the control cabinet.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConnect CT wiring according to specified input range (0.24–63.0 A).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnsure auxiliary supply of 24 VDC is stable and properly fused.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoute digital input wiring with shielding to minimize noise.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVerify MODBUS RTU address configuration before commissioning.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintain proper grounding practices to avoid communication errors.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43731202146378,"sku":"M102-M 1TNA920611R0002","price":540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/M102-P1TNA920711R2002_1.png?v=1760949782","url":"https:\/\/www.topbrandsplc.com\/products\/abb-1tna920611r0002-m102-m-modbus-rtu-module","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}