The serial RS232 to RS485 converter and RS232 to RS422 converter units, also called serial converters, are small electronic devices used to convert a serial RS232 signal, (for example the COM port in older computers) into either RS485 or RS422 signals. In addition to visualizers, product includes tools for data exporting, reproducing data from previously recorded log files, redirecting this data to COM ports, advanced serial port terminal, utility for sending MODBUS Commands and built-in scripting for tools automation.This is entirely a software COM port analyzing and serial port data logging solution that allows you to avoid using hardware equipment, null-modem cable, additional DB-25 or DB-9 connectors and so on.Our serial port data capturing software has been developed and constantly improved for more than 20 years. Our product provides simultaneous data tracking, data parsing (according to any given protocol), data filtering, event processing, packet construction and automation by means of scripting. Custom visualizer receives each packet parsed according to selected protocol and adds one or more text strings to the output. 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.

Converters between RS-485 and RS-232 are available to allow a personal computer to communicate with remote devices. Serial port monitoring and data processing algorithms are extremely optimized in order to provide you with slick user experience and eliminate all negative impact on operating system performance, stability, computer resources consumption, and introduction of communication delays even at high non-standard data transfer rates. The built-in Serial Terminal module is used to create serial port terminal sessions. Product offers a generic serial data/requests filtering feature, which allows you to configure filtering for different visualizers, create filtering schemes and quickly apply them to different visualizer windows.Additionally, you may change the appearance of visual elements for monitored packets in the data visualizers including MODBUS View, Request View (Serial, Bridge), Data View, PPP View. Cautious Allows you to save monitored data even after session is stopped. The two values provide a sufficient margin for a reliable data transmission even under severe signal degradation across the cable and connectors.

As you implement serial communications protocols, develop applications or hardware devices, you may need to monitor the data being sent to the ports and interfaces, modify this data, insert delays, and even insert new data packets. COMN, custom and virtual serial ports correctly registered within Windows operating system and visible in device manager under standard "Ports (COM & LPT)" device class. In the process of development of serial devices there is a necessity of their communication with PC via RS232 ports. It does not specify or recommend any communications protocol; Other standards define the protocols for communication over an RS-485 link. Some of these converters can convert from RS232 to both RS485 and RS422 however many standard models only has one of the protocols. The RS485 converter interface uses two wires for communication, one for transmitting and one for receiving data, which is referred to as a half-duplex communication converter. You can either select one of the predefined filters or create your own.Capture Filter can be used to discard entire packets according to specified criteria, while Display Filter can be used to hide packets from the specific Data Visualizer.

After this, the application will start parsing and decoding all matching packets according to custom protocol definition.Being used with automation tools (scripting, Serial Terminal, MODBUS Send) it provides you with serial protocol automatic event control handler functionality. MODBUS is an application layer messaging protocol, positioned at level 7 of the OSI model, that provides client/server communication between devices connected on different types of buses or networks.Serial MODBUS View visualizer parses MODBUS protocol requests and responses according to MODBUS APPLICATION PROTOCOL SPECIFICATION V1.1a. This exporter parses captured serial port data according to the loaded set of protocols, applies optional protocol-based filtering and Root Protocol and writes the resulting binary data into the output file. This exporter parses captured serial port data according to the loaded set of protocols, applies optional protocol-based filtering and Root Protocol and writes the resulting text data into the output file. This raises the question of implementing a protocol for data exchange between the device and the computer, and often it is necessary to monitor the data that the software application sends to the device using the serial port. Most newer consumer electronics comes with an USB, Firewire or other high-speed communication port, however a lot of industrial and commercial equipment, both old and new, is made only with a RS485 or RS422 serial communications port.

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