Allows the initiation of an APS switch command on the
APS group and channel specified by the index values.
If the APS switch command cannot be executed because an
equal or higer priority request is in effect, an error
is returned.
When read this object returns the last command written
or noCmd if no command has been written to this
channel since initialization. The return of the last
command written does not imply that this command is
currently in effect. This request may have been
preempted by a higher priority local or remote
request. In order to determine the current state of the
APS group it is necessary to read the objects
cApsStatusK1K2Rcv and cApsStatusK1K2Trans.
The value lockoutOfProtection should only be applied
to the protection line channel since that switch command
prevents any of the working channels from switching to
the protection line. Following the same logic,
forcedSwitchProtectToWork and manualSwitchProtectToWork
should only be applied to the protection line channel.
forcedSwitchWorkToProtect and manualSwitchWorkToProtect
should only be applied to a working channel.