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5-3-3. Terminator
To signal the end of a command
it is necessary to use a
special character.
The character that has been selected
awe
for use is the semi-colon
";". This special character must
appear
as the last character
in a particular command
string.
5-3-4. Types of commands
Set command
(To set a particular
Input command
condition)
(Input to the trans-
ceiver)
Read command
Commands
(Reads an answer)
Answer command
(To transmit a condi-
tion)
Output command
(From the transceiver)
Commands can be classified as shown in the chart above.
For example, with the FA (Frequency of VFO A) command.
© To set the frequency at 7 MHz, the command sent from
the computer to the transceiver is:
"FAO0007000000;"................
(Set command)
© To read the frequency of VFO A, the command
sent
from the computer to the transceiver is:
Pere
MIR EOIND,
OSL
a (Read command)
© When
the read command,
above, has been sent, the
command returned to the computer is:
"FA0Q0007000000;"................
(Answer command)
5-3-5. Error messages
In addition to the answer command, the transceiver will
send one of the following error messages:
© When the command syntax is incorrect.
© When the command was not executed due
to the current status of the transceiver, even
though the command syntax was correct.
Note:
Occasionally this message may not appear due
to microprocessor transientsin the transceiver.
When a communication error occurs, such as
an overrun error or framing error occurs during
serial data transmissions.
When the receive data is sent but processing
cannot be completed.
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