Omron V440-F User Manual page 137

4 Setup
If a Child reader in a Daisy Chain is turned off, even temporarily, an Offline notice will appear below
the respective Child on the reader map. Once turned back on, the Offline notice will disappear.
Some errors can occur when you have already established a Daisy Chain and confirmed that it's
working.
In this hypothetical error scenario, the Parent reader = P, the first Child reader = C1, the second Child
reader = C2, and the third Child reader = C3.
The user shuts down the application and completely turns off power on P, C1, C2, and C3. The user
comes in the following day and turns on all the devices except C3 and then starts the application.
The complete Daisy Chain can't be re-initiated because it is missing a unit. To account for this, the
application will place a "dummy device" in place of the missing C3. The dummy device will display an
error icon, the missing device's MAC address, and an Offline status message. It will continue show this
status if the browser is restarted. This offline device can't be clicked in the Daisy Chain info page. It is
only there to alert the user of the missing device.
If the user turns on C3 when seeing the status shown in the diagram above, the application will
automatically resolve the issue and a new, fully-formed Daisy Chain with C3 as a full device will be
created. There is no need to restart the browser or Parent device.
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V440-F C-Mount Code Reader User Manual