Restore Modem (Plm); Delete Modem (Plm) - Universal Devices ISY-994i User Manual

• If you have PRO series, click on the battery icon on the toolbar so that ISY goes back
to normal mode

5.2.1.7Restore Modem (PLM)

This operation is most useful when you need to replace a defective PLM and the ISY is
rebooted with a new PLM. When the communication links were established via the Link
Management Menu, the PLM and INSTEON devices adds each device addresses it is linked
to, in its own link table.
The ISY also reads and stores the PLM's address at boot up. The ISY stores all the
configurations settings of the lighting network. If you are replacing a PLM the ISY will have
the old PLM address link stored in it.
Warning: Never replace your PLM while the ISY is running because it will assume it is still
connected with the old PLM. The ISY will appear to work, but it will be writing the address of
the old PLM into the device links, thus you will not see devices updates etc.
If this menu option is selected, the ISY goes through all INSTEON devices looking for old
and new PLM address links. If an old PLM address link is found, it replaces them with the
address of the new PLM and adds the corresponding device link to the new PLM.
To replace a PLM:
• Unplug ISY from the power outlet
• Unplug the PLM from ISY and power outlet
• Connect ISY's port A to the new PLM
• Plug the new PLM into a power outlet
• Plug ISY into a power outlet
• Go to Admin Console and wait for system initialization to complete
o If you have PRO Series, click on the Battery icon at the top. This will prevent
ISY from trying to update programming on your RF devices which are
probably in sleep mode
• Click on the Restore Modem (PLM) menu option
o In case ISY cannot communicate (or decides not to if an RF device/PRO
Series) during the process, you will have a series of nodes with green 1011
icons in the device tree. For each one of those nodes:
▪ If an RF device, ensure that the device is in Programming mode
▪ Right mouse click | Write pending updates ...
If the above procedure fails on many of your devices, it's highly recommended that
you follow the instructions for Restore Devices.

5.2.1.8Delete Modem (PLM)

Before selecting this function, create a backup ISY file.
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