Mitsubishi Electric AE-200A Service Handbook page 103

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[VIII Maintenance]
[Notes]
(1) When newly preparing a update PC, ensure that the IP address that is used does not duplicate the IP address used by the
AE-200/AE-50/EW-50 or other equipment.
(2) When the equipment is connected to an existing LAN (when a dedicated LAN is not used for the AE-200/AE-50/EW-50), we
recommend separating the AE-200/AE-50/EW-50 to be updated from the existing LAN and then performing the update.
* If the equipment will not be separated from the existing (on-premises) LAN, contact the network administrator, and get
permission to connect the update PC and obtain an IP address to use temporarily.
(3) When the apportioned electricity billing function is used by the PI of the AE-50/EW-50, it will not be able to obtain a pulse input
during the update so a difference from the actual electricity consumption will occur.
(4) Communication with the air-conditioning units is not possible during the update of the AE-200/AE-50/EW-50 so the
air-conditioning units that are operating may detect a communication error and display the error on the local remote controllers*1.
The air-conditioning units will continue operation even if that happens, so operation with the local remote controllers will be
possible (permitted).
However, please note that systems without local remote controllers or Mr. Slim models*2 may detect a communication error
and come to an abnormal stop.
*1
If the update takes longer than approximately three minutes, an error may be displayed on the local remote controllers.
The update may take about 10 minutes depending on the software version and communication conditions so please
inform the administrator and other persons as necessary that an error may be displayed.
*2
Whether the air-conditioning units will come to an abnormal stop or display an error differs depending on the model.
(5) Write down the operation status of the air-conditioning units immediately before updating the software. After the software update
completes, check the operation status of the air-conditioning units, and if air-conditioning units that were operating are stopped,
manually operate them as necessary.
(6) Various control functions, such as schedule control, billing data processing, peak cut control, and energy management function,
will not be able to operate during the update. Check the settings of these functions beforehand, and perform the update when
stopping the functions will have the least effect.
(7) If the TG-2000A is connected and the functions in the table below are used, avoid updating the AE-200/AE-50/EW-50 during
the time periods indicated in the right column.
Apportioned electricity billing function
Error history automatic output (every day)
Energy saving daily report (peak cut control)
Measurement trend monitoring (uses a PI controller and AI controller)
(8) Do not perform the update via a VPN router connected to the Internet.
Functions in use
99
Time periods in which the update is
prohibited
4:05 AM to 4:35 AM
12:05 AM to 12:15 AM
2:00 AM to 2:10 AM
1:05 AM to 1:15 AM

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