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Modbus/en: различия между версиями
Новая страница: «In the case of limited computing resources for the calculation of the checksum, there is a function that uses table values (also given in the specification).»
(Новая страница: «For the Modbus RTU Protocol, the 16-bit checksum (CRC) is calculated using the algorithm described in the [http://www.modbus.org/specs.php Modbus] specification…») |
(Новая страница: «In the case of limited computing resources for the calculation of the checksum, there is a function that uses table values (also given in the specification).») |
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For the Modbus RTU Protocol, the 16-bit checksum (CRC) is calculated using the algorithm described in the [http://www.modbus.org/specs.php Modbus] specification in ''the Modbus Serial Line Protocol and Implementation Guide, CRC-generation section''. The sending device generates two bytes of checksum based on the message data, and the receiving device recalculates the checksum and compares it with the received one. The coincidence of the accepted and calculated modbud RTU checksum is considered an indicator of successful data exchange. | For the Modbus RTU Protocol, the 16-bit checksum (CRC) is calculated using the algorithm described in the [http://www.modbus.org/specs.php Modbus] specification in ''the Modbus Serial Line Protocol and Implementation Guide, CRC-generation section''. The sending device generates two bytes of checksum based on the message data, and the receiving device recalculates the checksum and compares it with the received one. The coincidence of the accepted and calculated modbud RTU checksum is considered an indicator of successful data exchange. | ||
In the case of limited computing resources for the calculation of the checksum, there is a function that uses table values (also given in the specification). | |||