Select one of the following options:
Note: To fire a timer
every "n" seconds regardless of the hour or minute, replace
the zero ( 0 ) value in the hours and minutes fields with an asterisk
( * ).
A zero ( 0 ) always represents the 0th
second of the minute, or the 0th
minute of the hour.
o Happens every second -- If you select this option, the timer fires every second. When you select this option, the Cron expression in the Schedule field shows the asterisk character (*) for this field.
o Happens every [30] seconds -- Specify the interval of seconds on which the timer should fire. The default is every 30 seconds. When you select this option and specify an interval, the Cron expression shows "0/n" in this field, where "n" is the number of seconds you specified for the interval. For example, if you specify every 10 seconds, this field shows "0/10" in the Cron expression.
o Happens from second [0] to [59] -- This option allows you to set the timer to fire over a period of seconds. Specify the second at which you want the timer to start and the second at which you want it to stop. For example, you might specify "from second 10 to second 20" for a timer that will fire for 10 seconds, starting at second 10. This field in the Cron expression would show the range as "10-20".
o Happens every [15] seconds, starting at second [0] -- This default setting would cause the timer to fire four times in a minute, at second 0, 15, 30, and 45. If you choose this option and keep the default settings, this field in the Cron expression would show "0/15" to indicate that the timer starts at second 0 and fires every 15 seconds.
o Other expression -- This field allows you to use Cron format to type a time expression for seconds. In addition, when you re-open this dialog box after making a selection, this field shows the Cron format for that selection.
When ready, click OK to save your selection and return to configuring the Schedule.