SATEC SA300 ezPAC Operation Manual - Manual (Page 84)

Chapter 8 Configuring Recorders Configuring Device Memory
84 SA300 Substation Automation Unit
Option Format/Range Description
Size Shows the size of the memory allocated to the file. It is
set automatically depending on the size of a file record
and the number of records in the file.
Sections/Channels 0-32 Defines the numbers of sections in a multi-section TOU
profile data log file or the number of recording channels
in a waveform log file
Num. of Records 0-65535 Allocates the file memory for a predefined number of
records
Record size Shows the size of the file record for a single channel or
section. It is set automatically depending on the file and
on the number of parameters in the data record
Parameters Defines the number of parameters in a single data
record for data log files.
Memory is allocated for each file statically and does not change unless you re-
organize the files. The SA300 automatically performs de-fragmentation of the
memory each time the file allocation changes. This helps keep all free memory in one
continuous block, and thus prevents possible leakage of memory caused by
fragmentation.
In the EN 50160 version, data log files #9 and #10 are automatically configured for
recording EN 51060 compliance statistics and harmonics survey data. You may not
change the record structure, but can change the amount of memory allocated for
each file.
Data log files #15 and #16 may be configured to record TOU monthly profile and TOU
daily profile data on a daily or monthly basis.
To change the file properties or to create a new file:
4. Double click on the file partition you want to change, or
highlight the file row, and then click on the “Configure File”
button.
5. To change the file properties, select desired parameters, and
then click OK. For your reference, the record size and the
number of records available for the file are reported in the
dialog box.
6. To delete a file partition, click on Delete, and then click OK.
7. Send your new setup to the device.
The following table shows how to calculate a file size for different files.
File Record Size, Bytes File Size, Bytes
Event Log 20 Record Size × Number of Records
Data Log 12 + 4 × Number of
Parameters
Record Size × Number of Records
EN50160 Compliance Statistics
(Data log #9) 148 (per channel) × 12 Record size × Number of records
EN50160 Harmonics Survey
(Data log #10)
220 (per channel) × 3 Record size × Number of records
TOU Profile Log
(Data log #15-#16) 12 + 4 × Number of
Season Tariffs
Record Size × Number of TOU
Registers × Number of Records x 2
Waveform Log 1068 Record Size × Number of Channels
× Number of Series × Number of
Records per Series
SOE Log 14 Record Size × Number of Records
PQ Log 32 Record Size × Number of Records
Fault Log 40 Record Size × Number of Records
For more information on configuring specific files, see following sections.
The device memory is pre-configured for regular data trending and fault recording
applications as shown in the following table for a 4MB memory.