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The Serial PPP View visualizer can be used to decode Point-to-Point Protocol packets, as well as a number of packets that can be encapsulated in PPP packets.PPP View supports the following protocols: Novell IPX, OSI Network Layer Control Protocol, DECnet Phase IV Control Protocol, Appletalk Control Protocol, Link Control Protocol, Password Authentication Protocol, Link Quality Report, Challenge Handshake Authentication Protocol, Multilink Protocol, Compression Control Protocol, Extensible Authentication Protocol, NETBIOS Protocol. Once created, the session can be used to send text or binary data to a connected serial device and to receive device's responses.Combined with Serial Monitor's connection monitoring capabilities, it becomes a powerful debugging and protocol testing tool. ● The manufacturer will do a lot of testing work for its supporting 485 converter, and will require the 485 converter manufacturer to carry out production and quality testing according to its fixed performance parameters, so it has better compatibility with access control equipment. One other key advantage that most people using 485 is, the better noise immunity. The diagram below shows potentials of the A (blue) and B (red) pins of an RS-485 line during transmission of one byte (0xD3, least significant bit first) of data using an asynchronous start-stop method.

1) What kind of communication line should be used for 485 bus? RS485 can handle line lengths of over 1 km and rates of over 10 Mbits per second. Most engineering companies are accustomed to using Category 5 network cables or over Category 5 network cables as 485 communication lines, which is wrong. Some people say that the 485 bus can carry 128 devices for communication. RS-485 is also used in theater applications, where a large number of devices are spread out across a large area. Generally, there are three levels of 485 chip load capacity-32 units, 128 units and 256 units. It should be judged according to the model of the chip in the 485 converter and the model of the 485 device chip, and the load capacity can only be determined according to the chip with a lower index. By using repeaters very large RS-485 networks can be formed.

That is, a bus is used to connect each node in series, and ring or star networks are not supported. There are many standards in serial communication and RS485, also known as TIA-485 (-A) or EIA-485, is just one of them. All communication cabling to be installed in a daisy chain configuration, no T’s are permitted. Part Status Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages. The RS422 converter is used for data transmission, using balanced or differential signaling, it is mainly used in industrial and commercial environments since lots of process equipment and machinery have this protocol built-in. They must all have a green light. RVSP shielded twisted pair must be used. The left side of the image shows the structure of the twisted pair cable, including copper wire, shielding, and insulation. EG4 shall not be liable for any direct or indirect loss of life, including but not limited to bodily injury, illness, or death arising from the misuse or mishandling of the product, whether caused by negligence or otherwise. A wide set of built-in and custom data visualizers and exporters are provided to give the user powerful insight on the monitored data.The built-in powerful Serial Terminal module provides a versatile terminal emulation environment which can be used in collaboration with a running monitoring session.Serial Monitor provides rich support for MODBUS protocol and devices, including specialized data visualizers, MODBUS Send window (MODBUS packet builder and sender) and full MODBUS protocol definition.Virtually every component of the Serial Monitor may be programmatically controlled by a running script, written in TypeScript (superset of JavaScript).Download this software rs232/rs422/rs485 serial protocol analyzer now!

The four-wire system can only realize point-to-point communication, which is rarely used now. An RS485 system should ideally consist of a single linear cable (with no branching) with 120-ohm resistors linked across the two wires at each end. The serial bridge Data View visualizer has two panes. The use of shielded twisted-pair cables helps to reduce and eliminate the distributed capacitance between the two 485 communication lines and the common mode interference generated around the communication lines. RS485 main advantages as compared to other serial communication are tolerance to electrical noise, lengthy cable runs, multiple slaves in one connection, what is rs485 cable and fast data transmission speed. The RS485 can be utilized in a variety of applications. In theory, the longest transmission distance of RS485 can reach 1200 meters, but the transmission distance in practical applications is shorter than 1200 meters. The condition is that the communication wire is high-quality and meets the standard, the baud rate is 9600, and only one 485 device is loaded, so that the communication distance can reach 1200 meters, so the actual and stable communication distance of the 485 bus is usually less than 1200 meters.