{"product_id":"victron-mk2-2b-ve-bus-rs232-interface","title":"Victron Interface MK2.2b (VE.Bus to RS232)","description":"\u003cp\u003eThe VE.Direct interface uses 3.3V or 5V TTL-level serial signalling, which is electrically incompatible with the ±12V RS232 standard used by DB9 serial ports and RS232-equipped PLCs. This interface cable bridges the two standards with a built-in isolated signal conversion circuit, translating the TTL logic levels of the VE.Direct port to full RS232 voltage levels on the DB9 connector side — and vice versa — for reliable bidirectional data exchange. The galvanic isolation between the VE.Direct side and the RS232 side is an important safety feature, as Victron VE.Direct products have very little internal protection on their communication ports.\u003c\/p\u003e\n\u003cp\u003eThe VE.Direct side of the interface is powered directly from the connected Victron product's VE.Direct port. The RS232 side draws its power from the DTR signal on pin 4 or the RTS signal on pin 7 of the DB9 connector — both of which are automatically driven high by standard serial ports and most serial port emulators, requiring no external power supply in typical installations. For communication, the GND (pin 5), RX (pin 2), and TX (pin 3) pins of the DB9 connector are used following the standard VE.Direct text and HEX protocol, which is fully documented in Victron's publicly available VE.Direct Protocol document.\u003c\/p\u003e\n\u003cp\u003eThe interface is compatible with the full range of Victron products that implement the VE.Direct protocol, and supports both the one-way TEXT data stream (real-time monitoring data transmitted at one-second intervals) and the bidirectional HEX protocol (for reading and writing device settings). It is particularly useful for integration with SCADA systems, data loggers, industrial PLCs, Raspberry Pi serial interfaces, and other embedded systems that require a hardwired serial data connection rather than a USB virtual COM port.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003ch4\u003eVE.Direct TTL to RS232 Signal Conversion\u003c\/h4\u003e\n\u003cp\u003eConverts the 3.3V\/5V TTL serial signalling of the Victron VE.Direct port to standard RS232 voltage levels on the DB9 connector side, making it directly compatible with PC serial ports, industrial PLCs, RS232-equipped data loggers, and embedded controllers without any additional level-shifting hardware.\u003c\/p\u003e\n\u003ch4\u003eGalvanic Isolation — Protects VE.Direct Ports\u003c\/h4\u003e\n\u003cp\u003eBuilt-in galvanic isolation between the VE.Direct side and the RS232 side protects the communication port of the connected Victron product from ground loops, voltage differentials, and transients present on the RS232 side — an important safeguard given the limited protection on VE.Direct ports within Victron products themselves.\u003c\/p\u003e\n\u003ch4\u003eSelf-Powered from VE.Direct and DTR\/RTS\u003c\/h4\u003e\n\u003cp\u003eThe VE.Direct side of the interface is powered from the connected Victron product's VE.Direct port. The RS232 side is powered from the DTR or RTS pin of the DB9 connector, which standard serial ports drive high automatically — requiring no external power supply or additional wiring in most standard installations.\u003c\/p\u003e\n\u003ch4\u003eSupports VE.Direct TEXT and HEX Protocols\u003c\/h4\u003e\n\u003cp\u003eCompatible with both the one-way TEXT protocol — which transmits a continuous stream of real-time monitoring data at one-second intervals — and the bidirectional HEX protocol, which allows reading and writing of device parameters, settings, and historical data using commands formatted according to Victron's publicly available VE.Direct Protocol specification.\u003c\/p\u003e\n\u003ch4\u003eCompatible with All VE.Direct Products\u003c\/h4\u003e\n\u003cp\u003eWorks with the full range of Victron products that implement the VE.Direct interface, including SmartSolar and BlueSolar MPPT charge controllers, BMV battery monitors, Phoenix inverters, Blue Smart IP22 and IP65 chargers, and SmartShunt battery monitors — providing a single standardised RS232 interface solution across the entire VE.Direct product family.\u003c\/p\u003e\n\u003ch4\u003eIdeal for SCADA, PLC, and Embedded System Integration\u003c\/h4\u003e\n\u003cp\u003eDesigned for integration with SCADA monitoring platforms, industrial PLCs, Raspberry Pi hardware serial interfaces, RS232-to-Ethernet converters, and other embedded or industrial systems that require a hardwired serial connection rather than a USB virtual COM port for reliable, continuous data acquisition from Victron devices.\u003c\/p\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable class=\"product-spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eVE.Direct Side Connector\u003c\/td\u003e\n\u003ctd\u003eVE.Direct (4-pin JST-PH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS232 Side Connector\u003c\/td\u003e\n\u003ctd\u003eDB9 female (RS232, DTE pinout)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS232 Pins Used\u003c\/td\u003e\n\u003ctd\u003ePin 2 (RX), Pin 3 (TX), Pin 4 (DTR), Pin 5 (GND), Pin 7 (RTS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation\u003c\/td\u003e\n\u003ctd\u003eYes-between VE.Direct side and RS232 side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eVE.Direct side: from VE.Direct port | RS232 side: from DTR\/RTS pin (5-12V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Protocol\u003c\/td\u003e\n\u003ctd\u003eVE.Direct TEXT and HEX protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eProtocol Document\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.victronenergy.com\/upload\/documents\/VE.Direct-Protocol-3.34.pdf\" target=\"_blank\"\u003eVE.Direct Protocol Document\u003c\/a\u003e\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":47128116461817,"sku":"IVV80017","price":54.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/8538\/1625\/files\/Product-IVV80017-1.jpg?v=1778864019","url":"https:\/\/emarineinc.com\/products\/victron-mk2-2b-ve-bus-rs232-interface","provider":"eMarine","version":"1.0","type":"link"}