Delta Electronics A10 User Manual page 119

Chapter 2 Creating and Editing Screens|ScrEdit Software User Manual
History Setup Dialog Box
The calculation method of the size of the history data file is as follows:
1. dat file
[
{
6 Bytes ( a
a Time and Date Data
b Alarm Data
c Sampling Points
d Data File Symbol
Example:
Suppose that the user adds two history data. The data length of the fist history data is set to 1
and the sample number of the first history data is set to 10000. The data length of the second
history data is set to 2 and the sample number of the second history data is set to 20000. Both
these two history data all have the time and date recorded, so the required dat file capacity for
these two history data are:
The file capacity of the first history data = [(6Bytes + 2Bytes) × 10000] + 8 Bytes =
80008Bytes.
The file capacity of the second history data = [(6Bytes + 2 × 2Bytes) × 20000] + 8 Bytes =
200008Bytes.
Total require: 80008Bytes + 200008Bytes = 280016Bytes = Approx. 0.268Mbytes.
2. csv file
×
N ( a ) 240
×
1024 1024
a Sampling Points
Example:
Suppose that the user adds two history data. The data length of the fist history data is set to 1
and the sample number of the first history data is set to 10000. The data length of the second
history data is set to 2 and the sample number of the second history data is set to 20000. Both
these two history data all have the time and date recorded, so the required csv file capacity for
these two history data are:
The file capacity of the first history data = = 10000 × 240Bytes = 2400000Bytes.
The file capacity of the second history data = 20000 × 240Bytes = 4800000Bytes.
Total require: 2400000Bytes + 4800000Bytes = 7200000Bytes = Approx. 6.8Mbytes.
The capacity of USB flash drive and SM Card provided by DOP-A series HMI:
HMI Model
AS38
A57
A75
A10
AE57
AE80
AE94
AE10
2-108
]
}
+ ×
) 2 Bytes ( b ) N ( c )
×
1024 1024
Bytes
=
Actual File Size
USB Flash Drive
128 MB
N/A
N/A
N/A
N/A
1GB
1GB
1GB
+ =
8 Bytes ( d ) Actual File
MBytes
Size MBytes
SM Card
N/A
No Limit
No Limit
No Limit
No Limit
No Limit
N/A
No Limit
Revision Apr. 30th, 2007, 2007PDD23000002