{"product_id":"arcus-knx-gw-modbus-reg-rs485","title":"KNX-GW-MODBUS-REG-RS485 - KNX Modbus RTU Gateway, RS485, DIN Rail","description":"\u003cp\u003eThe KNX-GW-MODBUS-REG-RS485 is a 2-module DIN-rail Modbus RTU master for RS485, with galvanic isolation between the Modbus and KNX sides. It reads and writes up to 32 scalable datapoints from Modbus devices such as meters, inverters and HVAC equipment.\u003c\/p\u003e\u003cp\u003eAll datapoints are configured in ETS, with multiplier and offset scaling and a reading cycle from 10 seconds to 12 hours. The gateway requires a 24-32 VDC auxiliary supply.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eModbus RTU master with 32 freely assignable, scalable datapoints\u003c\/li\u003e\n\u003cli\u003e300-115,200 baud, parity even\/odd\/none, device IDs 1-247\u003c\/li\u003e\n\u003cli\u003eMultiplier\/offset scaling; KNX 1, 8, 16 and 32-bit datapoint types\u003c\/li\u003e\n\u003cli\u003eReading cycle adjustable from 10 s to 12 h\u003c\/li\u003e\n\u003cli\u003eRS485 for up to 31 Modbus slaves, galvanically isolated from KNX\u003c\/li\u003e\n\u003cli\u003eAuxiliary supply 24-32 VDC, max. 100 mA (required)\u003c\/li\u003e\n\u003cli\u003e2-module DIN rail, IP20; ETS app KNX-GW-ModBus\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eArticle no.\u003c\/th\u003e\n\u003ctd\u003e40300002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKNX bus voltage\u003c\/th\u003e\n\u003ctd\u003eKNX 21-32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower consumption\u003c\/th\u003e\n\u003ctd\u003e10 mA KNX load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAuxiliary supply\u003c\/th\u003e\n\u003ctd\u003e24-32 VDC, max 100 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs \/ outputs \u0026amp; connections\u003c\/th\u003e\n\u003ctd\u003eKNX terminal; RS485 Modbus (max 32 participants incl. master); no 12 V output; Modbus galvanically isolated from KNX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection rating\u003c\/th\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eDIN rail, 2 TE, plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-25 to +80 °C (-13 to 176 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/4000_Gateways\/4500_MODBUS\/4510_01_e2_Modbus.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/4000_Gateways\/4500_MODBUS\/4510_4520_GW_knxprod_ModBus.zip\" target=\"_blank\" rel=\"noopener\"\u003eETS application\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e(CE certified; not UL\/NRTL listed — verify local code requirements before specifying in US installations)\u003c\/em\u003e\u003c\/p\u003e","brand":"ARCUS EDS","offers":[{"title":"Default Title","offer_id":50554320781568,"sku":"40300002","price":256.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/4161\/5360\/files\/4520_KNX-GW-MODBUS-RS485-REG_40300002.png?v=1791427922","url":"https:\/\/www.knxsupply.com\/products\/arcus-knx-gw-modbus-reg-rs485","provider":"KNX Supply","version":"1.0","type":"link"}