SCS PTC-IIex, Руководство пользователя

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10 Hostmode
10.4.32 %M
Default setting: 0
Parameter: 0 Hostmode expansion switched off.
1 Hostmode expansion switched on.
The parameter of the
%M
command activates the respective Hostmode terminal expansion.
At a hostmode start, it is always set to 0. (The hostmode program must choose the
respective amount of expansion it needs for itself after the start. This greatly eases step by
step software expansion). If a too high value is chosen, (that cannot be interpreted by the
PTC due perhaps to an older firmware version), the PTC answers with an error message
(code byte=2) which contains the maximum possible argument value.
%M
0 - Switches the hostmode terminal expansion off.
(This command is normally not needed by the terminal program, as the
%M
parameter is
automatically set to 0 at hostmode start.)
%M
1- delayed echo is output with Code-byte=8.
(With PR up to now, even with
%M
1, no "delayed-echo" has been given, as this function is
better done by the monitor channel data stream which can even handle self sent packets).
Note: Code byte 8 is not defined in WA8DED -hostmode and is used to define a special
extension of the PTC-IIex. Terminal programs which wish to work with delayed echo in
hostmode, must logically be appropriately extended to contain this feature, and choose the
extension required automatically. Manual switching of the hostmode expansion is not to
be recommended due to possible incompatibilities.
10.4.33 %O
Performs a CHANGEOVER. This command can also be used in the receiving condition
(
IRS ). In this case, it leads to a BREAKIN. During transmission ( ISS ), the
%O
will be
executed when all characters in the transmission buffer are sent and confirmed.
10.4.34 %Q
%Q basically has the same function as %O (over command), i.e. it puts an “over token”
to the end of the PACTOR transmit buffer triggering and “over” from ISS to IRS state
after all transmit data has been sent. In contrast to %O, the %Q command does not cause
a “breakin” (“over” from IRS to ISS state) if the PTC currently is in the receiving state
(IRS).
10.4.35 %T
Displays the total number of bytes beeing sent and confirmed in PACTOR so far. The
value is reset at the end of each connection. The number can also be reset by giving an
argument behind the
%T
command. The format is identical with the standard decimal
ASCII output as used in the hostmode.
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