E-Mon E-PS-A-RTU-N User Manual
Page 80
Chapter 4 Power
S O F T W A R E
C O N F I G U R I N G R E C O R D E R S
80
PowerSmart+ Advanced Power Quality Meter
Option
Range
Description
Num. of Records
0-65535
Allocates the file memory for predefined number of records
Record size
The size of the file record for a single channel or a section. Set
automatically depending on the file and on the number of
parameters in the data record
Parameters
0-16
The number of parameters in a single data record (not including
the EN50160 statistics files)
Memory is allocated for each file statically when you set up your files and will not change
unless you re-organize the files. The meter automatically performs de-fragmentation of the
memory each time you re-organize your files. This helps keep all free memory in one
continuous block and thus prevents possible leakage of memory caused by fragmentation.
To change the file properties or to allocate the memory for a new file, double click on the
file partition you want to change, select desired parameters for your log, and click OK. For
your reference, the record size and the number of records available for your file are
reported in the dialog box.
To delete an existing file partition, click on Delete and then click OK.
The following table shows how to calculate a file size for different log 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 #16
12 + 4 × (Number of season
tariffs + 1 if the TOU summary
register is ordered)
Record size × Number of TOU registers x
Number of records (× 2 if the maximum
demand profile is also ordered)
Waveform Log
1068 (per channel)
Record size × Number of Channels x
Number of series (events) × Number of
records per series
EN50160 Power Quality
Log
32
Record size × Number of records
For more information on configuring specific files, see “Configuring Data Log Files” and
“Configuring Waveform Files” below.
The memory is pre-configured for common data trending and fault recording applications
as shown in the following table.
No.
File
Type
Size,
Bytes
Channels Number of
Records
Number of
Events
Description
1
Event log
Wrap
around
20000
1000
1000
2
Data log #1
Wrap
around
109440
1440
1440
Configured for data
trending
3
Data log #2
Wrap
around
109440
1440
1440
Configured for data
trending
10
Data log #9
Wrap
around
21312
12
12
12
Configured for
EN50160
compliance statistics
11
Data log #10
Wrap
around
7920
3
12
12
Configured for
EN50160 harmonics
survey
18
Waveform log #1 Wrap
around
256320 6
40
20
32 samples/cycle
x 32 cycles/series
19
Waveform log #2 Wrap
around
256320 6
40
20
128 samples/cycle
x 8 cycles/series
EN50160 Power
Quality log
Wrap
around
32000
1000
1000