Bilanciai FLYNET 100, Инструкция по использованию, обслуживанию и монтажу

Страница: 83 / 125

81
FLYNET 100
Separator Point
Checksum Enabled/disabled
Enabled Enabled/disabled
5.5.6.2 Transmission of printed data string via serial transmission
The parameters available for serial transmission are as follows:
Port The COM ports available are those indicated in the drop-down menu, select one of the
COM ports not used
Protocol On request The weighing data are first transmitted and then printed out. With ACK
NAK protocol, if the transmission fails (the ACK command is not sent) the
line "ERROR PRINTED DATA TRANSMISSION ERROR" is added at the
bottom of the printout
With this mode the strings on which this situation occurs are permanently
lost.
Spool The weighing data are first printed out and then, if the printout ends
correctly, they are transmitted with ACK NAK protocol. If the transmission
fails, the string that was to be transmitted is stored in a special archive
called TxWeighing; in this archive the transmissions waiting to be
transmitted are saved. The transmission of the strings in the queue is
attempted every time the transmission of the weighing operation in
progress must be carried out: if there are already strings in the queue, their
transmission is carried out first, then when the queue has been emptied
the string relevant to the current operation is transmitted (the transmission
takes place in chronological order, from the oldest string to the most recent
one). Each string is deleted from the queue only after it has been correctly
transmitted.
With this mode the weighing operation in progress is slowed down
proportionally to the number of strings present in the TxWeighing archive,
in fact the weighing in progress is completed only at the end of its
transmission.
Archive The weighing data are first printed out and then, if the printout ends
correctly, they are stored in a special archive called TxWeighing. In order
to retrieve all stored weighing operations from the indicator, the PC must
send the character ENQ (05 hexadecimal or CTRL + E).
If the indicator accepts the transmission request received from the PC by
sending the character ENQ, it extracts from the TxWeighing archive the
data relating to the first weighing contained in the archive (the transmission
takes place in chronological order, from the oldest string to the most recent
one). Each string is deleted from the archive only after it has been
correctly transmitted. After the correct transmission of the last string
contained in the archive, the indicator sends the character EOT (04
hexadecimal) to the PC to inform it that the archive is now empty.
With this mode the PC must send its enquiry when the indicator is not
performing weighing operations. On the contrary; the weighing operation in
progress may slow down.
Decimal Comma