Western Reserve Controls 1782-JDC Manual do Utilizador descarregar pdf (Página 10)

Western Reserve Controls, Inc. 1782-JDC User’s Manual

“record number”, which the host application must increment each time a new record is

sent to that specific serial device. The bytes following this will be the ASCII data being

sent to the ASCII device.

3. Perform a poll command to the JDC. ASCII data will be sent to the JDC in the data bytes

immediately following the record number.

4. If any data is in the receive buffer in the JDC when the poll command is sent, the received

data will be returned as a poll response. (If the sequence number is the same as the

previous response, a new string has not yet been received by the JDC.)

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Western Reserve Controls 1782-JDC Manual do Utilizador Página 10