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10.1.1 Types of file
The X3M classifies the possible 65.536 files in 256 “types” according to the value of most significant byte of the
file number
. The least significant byte is used to identify the possible 256 files belonging to each type.
The designation that will be used in the following pages will be:
type.number
where
type
and
number
are hexadecimal values in the interval 00 and FF.
Example
02.07 it identifies the 7th file of type 2 (modbus index 0207h
≡
519 decimal)
03.8B it identifies the 139th file of type 3 (modbus index 038Bh
≡
907 decimal)
Each file type is dedicated to a specific service:
-
The file types 1-254 are reserved for storage of the field readings and for the instrument configuration
parameters:
Type 1: Load profiles logging;
Type 2: System logs;
Type 3: Configuration logs;
Type 4: Events log (voltage losses and overcurrent);
Type 5: Peaks logging;
Type 6: Time-of-use tariff calendar;
Type 7: Time-of-use energy counters;
Type 8: Time-of use maximum demand;
Type 253: user defined files;
Type 254: user defined files;
-
The file type 255 is reserved for access to the memory area containing the instrument firmware
(firmware up/download);
-
The file type 0 designates the disk “
directories
”.
