Siemens 7 - Manual (Page 22)

Multiplexer Driver Developer’s Guide
4.2 Settings Stored in the Windows Registry
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Mux_Drv_DevGuide_v07 Page 22 of 36 2006-9-27
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ReinitOnDSR 1 0 Default for XC18
The driver does not try to reconnect to the module if DSR
changes. This feature can be switched off if an application
controls the DSR line with AT&S.
1 Default for all modules except XC18
The driver tries to reconnect to the module if DSR changes.
The driver can detect if the module was disconnected and
reinitializes it before the first data errors occur.
ClosePort
(not applicable to
TC45 and XC18) AT+IPR=0
AT^SMSO A multi-string sent to the module if the last port is closed.
ClosePort
(TC45, XC18 only) AT+IPR=0 A multi-string sent to the module if the last port is closed.
PowerDown AT+CFUN=0 A multi-string sent to the module if the PC goes to suspend
mode or hibernate state.
The command AT+CFUN=0 has been chosen as factory
default for compatibility with older Siemens products. If you
prefer to use one of the more efficient CYCLIC SLEEP
modes it can be replaced with AT+CFUN=5 or 6 or 7 or 8 or
9. See
[3] and [4] to verify the SLEEP mode types supported
by your product. To avoid editing the Windows Registry you
can alter the corresponding parameter in the winmux2k.inf
file and then reinstall the driver.
ShutDown AT+IPR=0
AT^SMSO A multi-string sent to the module if the PC is shut down or
rebooted.
Note: Some PCs generate a DTR spike during turn off and
the module wakes up again.
WaitForDSR 1 0 Default for TC45 and XC18
The driver does not wait for the DSR signal to go low when
the module is shut down. Instead, the parameter Recover-
Time (see below) is used.
1 Default for all modules except TC45 and XC18
The driver waits for the DSR signal to go low when the mod-
ule is shut down. In this case the parameter RecoverTime is
not used. If the module is not switched off with the AT com-
mands defined in the parameter ClosePort this parameter
must be set to 0.
RecoverTime 2000 Minimum number of milliseconds between close and the
next open call.
PowerDownFrame 2 From version 3 onwards, the Multiplexer Protocol supports
power saving control with a special multiplex control frame.
This provides the possibility of sending power down com-
mands to the module without accessing any data channel.
If the connected module only supports the Multiplexer Pro-
tocol version 2 this value is not used. If the supported Multi-
plexer Protocol version is 3 or higher, the multiplex power
control is used instead of the values “PowerCmdPort” and
“PowerDown”. In this case this value corresponds to the
power down command of the multiplex power down frame
described in
[5] . If the value is greater than 255 there is no
power down frame sent for Multiplexer Protocol 3.
Table 6: Registry values
Value Data (Example) Properties