Controls how long the serial port will wait to return to an idle state after a driver releases the port semaphore. The purpose of this feature is to allow multiple drivers to share a Serial Tag in ‘serial’ mode (vs. modem mode).
There is a backward compatibility issue (prior to version 7.1) in that older port drivers did not have to acquire the port semaphore to cause the port to open. This will most likely affect drivers that operate in a listen mode, as they will now have to acquire the port semaphore to keep the port open.
To address this issue, set SerPortDisconnectDelay to a negative number. This will disable serial port sharing over the entire application, but will allow legacy driver to use the serial ports.
Section: System
Default: SerPortDisconnectDelay = 1
