{"product_id":"gc-1201pro-two-master-one-slave-server-rs485-hub-modbus-rtu-communication-protocol","title":"GC-1201Pro two master one slave server RS485 hub Modbus RTU communication protocol","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e-\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:20px\"\u003e\u003cstrong\u003eModel 1: GC-1201Pro single module\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:20px\"\u003e\u003cstrong\u003eModel 2: Module+12V power supply (power supply is 220 to DC12)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:20px\"\u003e\u003cstrong\u003eModel 3: Module+USB to 485 (USB to 485 module debugging use)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:20px\"\u003e\u003cstrong\u003eModel 4: Module+power supply+USB to 485\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:20px\"\u003e\u003cstrong\u003eModel 5: GC-1301Pro (three master one slave many slave module)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(244, 78, 59);font-size:20px\"\u003e\u003cstrong\u003eModel 6: GC-1401Pro (four master, one slave many slave module)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3e553101c5aa44fa8fcc96b324ee9599x.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cimg width=\"944\" height=\"974\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sef4fa746cbeb4ce496447239ba459e2ee.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003eTwo masters one slave\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eUp to 60 slave stations\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eModbus-RTU protocol\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eSupport 8 kinds of function codes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eIsolated RS485\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eOne RS232 port\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eCache 500 registers\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eReal-time operating system\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eAnti-reverse connection of power supply\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eAll kinds of protection are complete\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eEasy debugging\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e\u003cbr\u003eSupport guide rail installation\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:14px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003eApplication Overview\u003cbr\u003eGC-1201Pro is a professional RS-485 two master and one slave hub There is a large cache in the module, which is suitable for Modbus-RTU protocol and can map the data of multiple Modbus slave stations to the module At the same time, it supports two external Modbus masters to access the data existing in the module at high speed and concurrently\u003cbr\u003e\u003cbr\u003eModule can add up to 60 Modbus instructions to send these instructions through SLA port polling to read multiple slave stations At the same time, two external master stations also send the same instruction to read the slave station data in the module\u003cbr\u003e\u003cbr\u003eModule support Modbus-RTU protocol 01H, 02H, 03H, 04H05H06H0FH10H and other 8 functional codes Up to 500 slave registers can be stored\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"515\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7f5f5ecd728940cf8676b38e4f4b4961E.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:18px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003eTypical application scenarios\u003cbr\u003eExtend a Modbus-RTU slave interface to two\u003cbr\u003eThe sensor has only one RS485 interface, but there are two upper computers to collect data\u003cbr\u003eOne RS485 is connected to the local display screen and the other is transmitted remotely\u003cbr\u003eAnalog signal long-distance following output\u003cbr\u003eOne RS485 is connected to touch screen, and the other is connected to PLC\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"574\" src=\"https:\/\/ae01.alicdn.com\/kf\/S73938f218e9b4e50889d84ccd1261cc3E.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:14px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003e1. The module contains one internal master station and two internal slave stations, in which the memory of the internal master station and the internal slave station is shared\u003cbr\u003e\u003cbr\u003e2. Module needs to set up all Modbu-RTU scripts to read and write, and different scripts will be assigned different storage addresses\u003cbr\u003e\u003cbr\u003e3. The internal master station sends a set instruction to poll and read and write the data of a plurality of external slave stations\u003cbr\u003e\u003cbr\u003e4. Two external master stations read the data of slave stations according to the set instructions Instructions are equivalent to keys. Different instructions are different keys. Different keys can open different cabinets. The same different instructions can read different data\u003cbr\u003e\u003cbr\u003e6. The three communication ports of the module are completely independent and can process data independently and concurrently at high speed\u003cbr\u003e\u003cbr\u003e7. The module supports function codes such as 01H02H03H04H05H06H0FH10H (the configuration software shows decimal)\u003cbr\u003e\u003cbr\u003e8. The internal master station has an error handling mechanism. When errors such as abnormal reading timeout check bit and abnormal frame length occur, the module will carry out some processing according to the settings\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:14px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003eProduct parameters\u003cbr\u003eModule parameters:\u003cbr\u003eModel: GC-1201Pro (proxy type two master and one slave hub)\u003cbr\u003eOperating voltage: DC9-30V\u003cbr\u003eOperating current: ≤ 100mA\u003cbr\u003eFunction overview: 1-way Modbus-RTU slave station interface is extended to 2-way Modbus-RTU interface\u003cbr\u003eFunction code: 01H 02H 03H 04H 05H 06H OFH 10H (hexadecimal)\u003cbr\u003eNumber of slave stations: \u0026lt; = 60\u003cbr\u003eCache size: Up to 500 Modbus registers (1000 bytes)\u003cbr\u003eInterfaces: 1 RS232 Interface + 3 RS485 Interfaces\u003cbr\u003eProduct size: Length, width and height 123x71x35mm (including both ends)\u003cbr\u003eProduct weight: 120g (net weight) 160g (gross weight including accessories and boxes)\u003cbr\u003eUse environment:-40°C to 85°C, relative humidity 5%-95%\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style='background-color:rgb(238, 243, 250);color:rgb(3, 27, 77);font-size:14px;font-family:\"Helvetica Neue\", Helvetica, tahoma, Arial, \"PingFang SC\", \"Hiragino Sans GB\", STHeiti, \"Microsoft YaHei\", \"WenQuanYi Micro Hei\", sans-serif'\u003eCommunication parameters\u003cbr\u003eCommunication type: Isolated RS-485 (isolation voltage 2500V)\u003cbr\u003eCommunication Protocol: Modbus RTU (Master + Slave)\u003cbr\u003eCommunication distance: 1200 meters\u003cbr\u003eBaud rate: 1200-115200bps, default 9600 (8, n, 1)\u003cbr\u003eOthers: Stop bit can be set, check bit can be set\u003cbr\u003eProtection level: 600W lightning surge protection ± 15KV ESD protection per line of RS-485 interface\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"964\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7e636b04d3e94646bccdc4e968741d9bB.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"1259\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sa9ca3f5dc65a4397bc400aedeb752f09q.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"883\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sdbc31c013c1f4677b96daead98ddf7b6z.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"1080\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sb4eed4dce46c43a385f89cc1a1d1f42fv.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2ab6e0d208ed47f697d70ea7ac2a5a51M.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf94f154a19e84224b0bac63a1a1524d0j.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"1513\" src=\"https:\/\/ae01.alicdn.com\/kf\/S55aa1adfd98c4da49b7ea47799506ee8k.jpg\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"Model 1","offer_id":55513878823211,"sku":"14:350852#Model 1","price":589.88,"currency_code":"USD","in_stock":true},{"title":"Model 2","offer_id":55513878855979,"sku":"14:351074#Model 2","price":639.08,"currency_code":"USD","in_stock":true},{"title":"Model 3","offer_id":55513878888747,"sku":"14:4044226#Model 3","price":651.36,"currency_code":"USD","in_stock":true},{"title":"Model 4","offer_id":55513878921515,"sku":"14:201659813#Model 4","price":675.96,"currency_code":"USD","in_stock":true},{"title":"Model 6","offer_id":55513878954283,"sku":"14:200001438#Model 6","price":823.56,"currency_code":"USD","in_stock":true},{"title":"Model 5","offer_id":55513878987051,"sku":"14:10#Model 5","price":749.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/Sde143ed357a04e4ea62ffc8d57f9999bI.webp?v=1789008212","url":"https:\/\/yoeruyo.com\/products\/gc-1201pro-two-master-one-slave-server-rs485-hub-modbus-rtu-communication-protocol","provider":"Yoeruyo","version":"1.0","type":"link"}