You configure an RP controller expansion module into online maintenance mode to read diagnostics from the device and to upgrade the device with new firmware.
Power off the RP controller expansion module by disconnecting the device from the RP-C room bus.
For more information, see RP-C Room Bus .
Configure the room bus address 0 for the device, by turning the rotary switch on the device.
Power on the RP controller expansion module by connecting the device to the RP-C room bus.
For more information, see Connecting RP Controller Expansion Modules to an RP Controller .
Configure a unique room bus address, within the range supported by the RP-C controller model.
For more information, see Configuring the Room Bus Address for an RP Controller Expansion Module .
For more information, see Configuring the Room Bus Address for an RP Controller Expansion Sensor Module .
You can now read diagnostic log files from the device and upgrade the device with new firmware.