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Windows Serial Terminal Cmd3/11/2021
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Windows Serial Terminal Cmd Serial Communication RunningRequirements: USB Serial port on PC(Ex: COM9) Hterm Software External sensordevice connected to RS 232 which can respond to the commands What is Hterm Hterm is a terminal program for serial communication running on Windows and Linux.
This allows to communicate with serial connected devices with USB (using RS232 ports). Basic Features of Hterm: Supports all available hardware and virtual USB serial rs232 ports Supports all baud rates provided by the port Input and output in ASCII, hexadecimal, binary and decimal Sending and receiving of files Parity and flow-control Where to Download: Hterm is an executable application, where you can download the windows version from here and extract the zip file into a folder. I keep all the softwares in a particular folder in a separate drive (Other than C:) to prevent from loss of data in-case of OS crash. Once the downloaded zip file (hterm-windows.zip) is extracted, you will find an application HTerm. Hterm window Once the Hterm window is opened, you will be able to see multiple options where you can selectchange according to your need. Usage of Hterm: Select the COM port from the dropdown list through which you connected your USB. You can find your port number in Device Manager Ports (COM LPT) as shown below: (Example: COM 9) If the port is not shown, Close and open the software or try refreshing by clicking R symbol next the port selection in the software(Hterm). Device Manager for Ports in windows or use command line open cmd and type mode mode displays all the controllable attributes of the CON (console) and the available COM devices (and LPT as well). Once you select the ports, set the baud rate, data-bits, parity, stop bits for the required communication protocol. Communication Parameters Baud rate 19200 Data bits 8 Stop bit 1 Parity Even And click Connect. In-case if there are any errors check the parameters like baud rate. Hterm Connected 3. Now, you have successfully connected to the device. ![]() ![]() So the message sent and the responses receive will be in the format of MODBUS and its supported function codes. For example: 11 01 00 13 00 25 0E84 This is a packet format where each value represents a value 11: The Slave Address (11 hex address17 ) 01: The Function Code 1 0013: The Data Address of the first coil to read. The total number of coils requested. E84: The CRC (cyclic redundancy check) for error checking. Once you entered this command in the input control (Hex format), you will receive a response, which will be displayed in received data block of Hterm. For Example: 11 01 05 CD 6B B2 0E 1B 45E6 Response received from the connected device 11: The Slave Address (11 hex address17 ) 01: The Function Code 1 (read Coil Status) 05: The number of data bytes to follow (37 Coils 8 bits per byte 5 bytes) CD: Coils 2720 (1100 1101) 6B: Coils 3528 (0110 1011) B2: Coils 4336 (1011 0010) 0E: Coils 5144 (0000 1110) 1B: 3 space holders Coils 5652 (0001 1011) 45E6: The CRC (cyclic redundancy check). There is options to select ASCII or binary or Decimal as per you requirements. Now you can send your own commands as per your communication protocol and its function codes Slave address and other parameters. ![]() Windows Serial Terminal Cmd Manual And OfficialCheck the user manual and official protocol website for example commands There are many other options like save the output, new line, count, data transmitted and received etc.,. You can check here. How to find a Com port in windows through device manager as well as CMD (Command Prompt) 2. How to calculate CRC Analytics Vidhya Analytics Vidhya is a community of Analytics and Data Follow 1 Sign up for Analytics Vidhya News Bytes By Analytics Vidhya Latest news from Analytics Vidhya on our Hackathons and some of our best articles Take a look. Get this newsletter By signing up, you will create a Medium account if you dont already have one.
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