BBMC

• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

If you need technical support or have any feedback/review, please click the Submit Now button to submit a ticket, Our support team will check and reply to you within 1 to 2 working days. Confirm hardware connections including serial port devices, and check if your gateway and energy meter are correctly connected. Confirm serial port parameters such as baud rate, data bits, and stop bits: Baud rate should be configured according to the connected RS485 device, commonly used rates are 9600 and 115200; Refer to the device manual or contact RS485 device technical support for configuration, especially if set to Modbus mode, confirm if the function code matches. In the case where a TCP connection is established but no data is received, following the assessment in 1), if the TCP channel is established but no data is received, further investigation is necessary. Because there is a chance of data collosion with this implementation, theory tells us that in this case only 37% of the bandwidth will be effectively used. It also defines three generator interface points (signal lines); A, B and C. The data is transmitted on A and B. C is a ground reference.

Use a 485 to USB serial cable, connect it to the interface of the 485 device and the computer's USB port, assign a COM port on the computer, open serial debugging assistant software, set the serial port parameters consistently, input the corresponding COM port, and monitor the data from the 485 device. If the network host machine fails to send data normally, consider configuring network heartbeat packet verification. 2. Configure the IP of your RS485 and your computer to the same network address but different node address IP. Can I mix Laureate LT transmitters and meters on the same RS485 line? RS485 is specified for multi-point communicates where multiples devices have their own address on the same communication line, while RS232 is only specified for point-to-point communications. RS232 is an interface to connect one DTE, data terminal equipment to one DCE, data communication equipment at a maximum speed of 20 kbps with a maximum cable length of 50 feet. And that with an interface which does not require intelligent network hardware: the implementation on the software side is not much more difficult than with RS232.

These cables allow the dual RJ11 jacks of the RS485 option board of Laureate meters (digital interface ordering option 2) to be daisy chained and to be addressed digitally with no need for a hub. By using two jacks, up to 31 L485 boards can be connected in parallel for daisy chaining using readily available CBL03 data cables with no need for a hub. Each device has a communication port with two terminals, which are indicated for the sake of convenience as A and B. In these two terminals the communication cable is connected so that all the devices that take part in the communication are connected in parallel. All the ‘A’ terminals must be connected together and all the ‘B’ terminals must be connected together respectively. The solution is provided by the Laureate DIN rail mounted breakout board, which provides two RJ11 jacks with six screw clamp terminals all wired in parallel. Not more than one breakout board is required per RS485 line. With this boards, a CBL03 lines with RJ11 connectors can branch out to support an RS485 line consisting of three discrete wires. The board with dual RJ11 jacks is the more popular since is can use commercial straight-through, non-reversing, 6-wire data cables with RJ11 connectors.

Laureate RS485 boards are available in versions with dual RJ11 jacks (ordering option 2, board P/N L485) and with dual RJ485 jacks (ordering option 4, board P/N LMOD). The two jacks are wired in parallel by circuit traces on the circuit board. The two-wire half-duplex system enables bidirectional data transmission between two devices, but not simultaneously. What it does is that's after sensing the temperature in the room and yet when you're making adjustment to the thermostat, it actually sends the data to the controller, which could be controlling that, the temperature, turning on and off the AC to heat or cool the room up. If normal, data will be periodically transmitted. If the indicator light is normal, please turn off the tool and turn it on again to test. Choosing a digital instrument guarantees better readability, also in low light conditions, especially for instruments with LED displays, and immediate reaction to measurement variation. This type of multifunction instrument is ideal in panels where space is limited, in substation panels and in main industrial panels. This cable provides a USB type A connector for the PC end and an RJ11 connector for the meter end.

If you have any kind of inquiries relating to where and the best ways to make use of what is rs485 cable, you can call us at the web site.