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Throught
Monitor
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| 3.
The Watchdog Serial Port application works mainly by monitoring the amount
of data coming in and out of the serial port in a specified lapse of time.
The minimum amount of data that must transmitted or received is specified
in the !ĦħNumber of Bytes!ĦL column. And the time lapse that is needed is
specified in the !ĦħDuration!ĦL column. For example, you have a serial equipment
that is known to transmit at least 30 bytes per second and receives at least
10 bytes per 2 seconds. So the setting would be as such : |
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| 4.
The next step is to specify what the Watchdog Serial Port application will
do when the minimum no. of bytes in the specified amount of time is not
achieved. The options are to either !ĦħReset the Motherboard!ĦL or to !ĦħReset
the Power Control Box!ĦL. For example, if the specified settings in the previous
example is not met, the following actions will be taken. For the Transmit
part, the Watchdog Serial Port application should restart the computer if
the specified number of bytes are not achieved within the specified time
limit. As for the Receive part, the Watchdog Serial Port application should
reset the Power Control Box (to activate maybe an alarm) if the requirements
are not achieved. See the below for the application of such scenario. |
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| 5.
Since there is an option to reset the Power Control Box, there is also an option
to specify how long will be the transition of the Power Control Box from one
state to the other. For example, the Power Control Box is initially turned OFF,
and an alarm is attached to the box to sound off any problem that might occur.
The alarm should sound on for 10 seconds after the no. of bytes for receive
part has not been achieved as to warn any personnel about the problem. After
10 seconds has elapsed, the Power Control Box will revert back to its previous
state (OFF) and would eventually shut down the alarm. |
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Like in the above example, the initial state of the Power Control Box was known
to be OFF, this option can be specified in the selection !ĦħInitial State of
Power Box!ĦL. This setting defines the initial state of the box whether it is
ON or OFF. So if the box was initially ON, the transition would be from ON to
OFF then back to ON. |
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