User`s guide

Table Of Contents
Alarm Management
Mitsubishi Electric, MA00759F 167
Executing the Backup Function
Alarm backup can be activated in two ways:
Using a function/touch key
Select the action Saves alarm list to memory card under Other functions when
assigning actions to keys in the configuration tool. When the function/touch key
is pressed, the alarms are backed up on the USB memory stick.
Using a bit device declared with the ABUPx command
The command ABUPx is stated on the Commands line under Setup/System
signals, where x is a bit device. Two consecutive bit devices are used. The first
device is a trigger, and the second device is an error bit.
Example
Ty pe ABUPM10 on the Commands line to use the bit device M10 to trigger the
backup function.
When the backup is finished, a 0 is written to the trigger device. In case of error,
a 1 is written to the error device.
Number of Stored Backup Files
By default, one backup file is stored. When storing a backup file any old file, if
present, will be deleted. It is possible to store more than one file using the command
AMBn on the Commands line, where n indicates the number of backup files that
will be stored.
Example
Typ e AMB5 on the Commands line to store five backup files. When a sixth file is
stored, the oldest existing file is deleted.
Note:
If a driver using variables in its communication, a bit array or a variable type which can
be enumerated, must be used. E.g. with ALARMBACKUP.$0, then ALARMBACKUP.$1 is
used as error device.