{"product_id":"rocon-rfi-421-industrial-control-plc-24-110-vdc-input-rs232-rs485-4ai-4","title":"RoCon – RFI 421 – Industrial Control PLC, 24–110 VDC Input, RS232\/RS485, 4AI \/ 4","description":"\u003cp class=\"p1\"\u003eThe RoCon RFI 421 is a versatile industrial programmable logic controller (PLC) built for robust automation tasks. With four analog inputs, four digital inputs, and four relay outputs, it enables reliable control and monitoring of process systems. It supports serial communication via RS-232 and RS-485 and is powered by a wide input range of 24–110 VDC. The integrated keypad and LCD panel offer direct front-panel programming and status feedback, making it ideal for standalone or distributed automation setups.\u003c\/p\u003e\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003c\/p\u003e\u003cp class=\"p3\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eModel:\u003c\/b\u003e\u003c\/span\u003e RFI 421 (Type 5A)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eBrand:\u003c\/b\u003e\u003c\/span\u003e RoCon PLC\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003ePower Supply:\u003c\/b\u003e\u003c\/span\u003e 24–110 VDC, 5.6 W\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eAnalog Inputs:\u003c\/b\u003e\u003c\/span\u003e 4 channels (AI1–AI4), configurable for different sensor ranges\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDigital Inputs:\u003c\/b\u003e\u003c\/span\u003e 4 isolated inputs (IN1–IN4)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eRelay Outputs:\u003c\/b\u003e\u003c\/span\u003e 4 digital relay outputs (OUT1–OUT4), typically rated for 230 VAC, 3 A\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eCommunication:\u003c\/b\u003e\u003c\/span\u003e RS-232 and RS-485 ports for remote connectivity\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eUser Interface:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003eFront panel with tactile buttons\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e7-segment or small-character LCD display\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003eStatus LEDs for READY, ST1–ST5\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eMounting:\u003c\/b\u003e\u003c\/span\u003e Panel-mounted (IP52 from front panel)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003c\/p\u003e","brand":"RoCon","offers":[{"title":"Default Title","offer_id":55818421141878,"sku":"EB-286669229294","price":2754.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/4202\/8857\/files\/57_8f624ad7-06f3-42fd-b422-1dee5ae604a9.png?v=1750717536","url":"https:\/\/volt-werk.com\/products\/rocon-rfi-421-industrial-control-plc-24-110-vdc-input-rs232-rs485-4ai-4","provider":"VOLTWERK Handel","version":"1.0","type":"link"}