Web Server and Setup Pages
WebRelay Users Manual
Unsuccessful Ping Period
When ping requests fail (no response from device), it may be desirable to begin pinging at a shorter time
interval. This allows the WebRelay to determine in less time that the device is not functioning. After each
unsuccessful ping, the WebRelay will wait this time interval (in seconds) before the next ping attempt.
This time can be set from 1 to 6000 seconds (100 minutes or 1.67 hours).
Delay Before First Ping After Reboot
When the WebRelay is first powered, it will wait this time interval (in seconds) before beginning to ping
the device. This time delay allows the device to boot before being pinged. This time can be set from 0 to
6000 seconds (100 minutes or 1.67 hours).
Reboot Timer 1 (T1)
Pulse Time 1 (in seconds). See “Reboot Options” below for details. This time can be set from 1 to 6000
seconds (100 minutes or 1.67 hours).
Reboot Timer 2 (T2)
Pulse Time 2 (in seconds). See “Reboot Options” below for details. This time can be set from 1 to 6000
seconds (100 minutes or 1.67 hours).
Reboot Timer 3 (T3)
Pulse Time 3 (in seconds). See “Reboot Options” below for details. This time can be set from 1 to 6000
seconds (100 minutes or 1.67 hours).
Reboot Options
This parameter defines how the device will be re-booted. This is determined by the way WebRelay is
connected to the device. There are several options for connection. Three reboot methods are discussed
here which will help in understanding of how reboot options should be set.
Reboot Method #1:
Connect the WebRelay in series with the power source of the device. By
doing this, WebRelay can switch the device on and off by switching the power to the device on
and off.
Reboot Method #2:
Connect the WebRelay in parallel with the reset switch of the device. With
this approach, WebRelay re-boots the device by momentarily closing the reset switch. This has
the advantage of being less “hard” on the device that is being controlled than switching the
power on and off.
Reboot Method #3:
Some devices have on/off switches that will remain in the on or off position
and other devices have momentary power buttons. Devices with momentary power buttons
usually will not turn on after power is applied until a user presses the power button. In this case,
simply controlling the power to the device will not work for reboot because once the device is off,
it will not come back on until the power button is pressed (even after power is restored, pressing
the button is required). The WebRelay can be wired in parallel with the power button and can
momentarily close the power button to turn the device on or off.
Each option in the Reboot Options drop-down list is explained below:
pulse off T1 secs
This option is usually used for method #1 described above. In this case the
power to the device is wired in series with the relay. Common and Normally Open contacts
should be used. When this option is selected, the WebRelay will automatically turn
on
the relay
when it is first powered. The Normally Open relay contacts will be closed and the device is
powered on. When the device needs to be re-booted, the relay contacts will be pulsed
off
for the
time duration specified in T1 (see above) seconds. This option does not use parameters T2 or
T3.
pulse on T1 secs
This option is usually used for method #2 described above. In this case the
reset button is wired in parallel with the relay. Common and Normally Open contacts are used.
When the device needs to be re-booted, the relay will be pulsed
on
for the time duration
specified in T1 (see above) seconds. This option does not use parameters T2 or T3.
pulse on T1 secs, off T2 secs, on T3 secs (without pp)
This option is usually used for
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Xytronix Research & Design, Inc.
