{"product_id":"industrial-two-master-one-slave-rs485-repeater-buffer-photoelectric-isolation-modbus-dual-master-hub","title":"Industrial two master one slave rs485 repeater buffer photoelectric isolation modbus dual master hub","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eEmulator\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eXY AMY\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\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e+\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cimg width=\"944\" height=\"944\" src=\"https:\/\/ae01.alicdn.com\/kf\/Sfd9dfaca26c74c77a2189126406e1b96x.jpg\" slate-data-type=\"image\"\u003e\u003cimg width=\"944\" height=\"1103\" src=\"https:\/\/ae01.alicdn.com\/kf\/S2bab091196da45fe8e9cde00f7414b55D.jpg\" slate-data-type=\"image\"\u003e\u003cimg width=\"944\" height=\"734\" src=\"https:\/\/ae01.alicdn.com\/kf\/S4b7b064a0a6c430db68ab1cb242e7da6y.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px;font-family:georgia, serif\"\u003e\u003cstrong\u003eProduct Introduction:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003ePH-6021 (ZC) Two way cache isolated RS485 hub is a communication device that supports two ways of RS485 master station equipment and one or multiple ways of RS485 slave station equipment. It is used to solve the problem of communication conflicts when two master stations communicate with the slave station at the same time. When querying the slave station data, Master Station 1 will only return to Master Station 1 and not to Master Station 2, Similarly, querying data from master station 2 will only return to master station 2 and not to master station 1. Optoelectronic isolation technology is used between the master station and slave station interfaces to protect the master station equipment from interference. The circuit design includes 15KV ESD protection and 5KA lightning surge protection devices, which can effectively isolate the harm caused by lightning and static electricity to the equipment. Each of the three communication interfaces has a communication indicator light, which can visually see the status of each communication interface. Transparent data transmission between the master and slave interfaces, communication format and baud rate can be set through software\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003eThis product is suitable for integrated RS485 communication systems such as automation control systems, monitoring systems, alarm systems, access control systems, IC card charging, meter reading, all-in-one card, parking lot charging, etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:22px;font-family:\"times new roman\", times, serif'\u003e\u003cstrong\u003eFunctional characteristics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e·Power input DC9-36V with overcurrent and reverse protection\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e·Supports communication between two RS485 master station devices and one or more RS485 slave station devices.    The baud rate and communication format can be set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e·The signal interface has protection against static electricity, lightning strikes, and surges\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e·The communication and power supply between the master and slave interfaces are completely isolated\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e·Adopting 32-bit MCU and high-speed optocoupler, with a baud rate of up to 115200\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='font-size:20px;font-family:\"times new roman\", times, serif'\u003e·The slave communication port supports a maximum of 120 nodes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:22px;font-family:\"times new roman\", times, serif'\u003e\u003cstrong\u003eProduct parameters:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:20px;font-family:\"times new roman\", times, serif'\u003eModel: PH-6021 (ZC)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:20px;font-family:\"times new roman\", times, serif'\u003eInterface characteristics: compatible with EIA\/TIA RS-485 standard\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(0, 0, 0);font-size:20px;font-family:\"times new roman\", times, serif'\u003eTransmission medium: twisted pair or shielded wire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eWorking mode: Asynchronous half duplex (RS-485 bidirectional communication)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eCommunication protocol: Transparent transmission without protocol restrictions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eCommunication format: Standard communication format with optional check bits\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eWorking power supply: 9-36VDC\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eStatic power consumption: 0.6W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eSignal indication: four indicator lights, status (STA), slave station (SLA), master station 1 (MA1), master station 2 (MA2)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eIsolation degree: Isolation voltage 2500Vrms 500VDC continuous. Built-in DC\/DC module\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eBaud rate: 1200bps -115.2Kbps\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eProtection level: 600W lightning surge protection for each line of RS-485 interfaces at both ends, 士15KV ESD protection\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eTransmission distance: 0-3000 meters (115200bps-9600bps)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eProduct size: 98x50x31mm (including both ends)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eOperating environment: -40 ° C to 85 ° C, relative humidity 5% -95%\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:22px;font-family:\"times new roman\", times, serif'\u003e\u003cstrong\u003eCommunication speed:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e1.Firstly, it should be noted that communication speed is mainly related to baud rate and data length: the higher the     baud rate, the shorter the data length, and the faster the communication speed; On the contrary, the slower the speed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eIn addition, it also depends on the response speed of the slave station. The faster the slave station responds, the higher the overall communication speed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e2. Use MODBUS protocol to read 1 at 9600 baud rate\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e1 register as an example:. Upper computer query instruction\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e01030000000b040d lower computer responds to commands\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e01031600d7006f00630042003700600023004e004200600002 a8 d8\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003eAs shown in the figure, it can be seen from the sampling image measured by the oscilloscope that (1) the entire communication process takes approximately 100ms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);font-size:20px;font-family:\"times new roman\", times, serif'\u003e(2) The module forwarding (-- receive send) time consumption is about 38ms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg width=\"944\" height=\"1087\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/3030173351\/O1CN01Lo0qWg1acnzrceSdP_!!3030173351.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg width=\"944\" height=\"944\" src=\"https:\/\/ae01.alicdn.com\/kf\/S765d942d3b91478399f968e88040c3d33.jpg\" slate-data-type=\"image\"\u003e\u003cimg width=\"944\" height=\"941\" src=\"https:\/\/ae01.alicdn.com\/kf\/S505df23694bc407c96ae58b958bfe3fa8.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"Default Title","offer_id":55513885638955,"sku":"\u003cnone\u003e","price":98.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S791d2c4e8cdf4120ba5a6df1dcfba6aaK.webp?v=1789008227","url":"https:\/\/yoeruyo.com\/products\/industrial-two-master-one-slave-rs485-repeater-buffer-photoelectric-isolation-modbus-dual-master-hub","provider":"Yoeruyo","version":"1.0","type":"link"}