149
ELSPEC
G
G
4
4
K
K
F
F
i
i
x
x
e
e
d
d
P
P
o
o
w
w
e
e
r
r
Q
Q
u
u
a
a
l
l
i
i
t
t
y
y
A
A
n
n
a
a
l
l
y
y
z
z
e
e
r
r
U
U
S
S
E
E
R
R
&
&
I
I
N
N
S
S
T
T
A
A
L
L
L
L
A
A
T
T
I
I
O
O
N
N
G
G
U
U
I
I
D
D
E
E
FIFO
PQZIP files are maintained on the G4K's Built-In Fla sh M emory b ased o n t he FIFO
(First I n Fir st O ut) co ncept. The G 4K u nit co ntinuously r ecords & m easures a ll
electrical information, an d t herefore file storage operations never s top. As such,
when t he o n-board m emory be comes f ull, t he o ldest f iles ar e d eleted
automatically t o f ree r equired s pace f or t he n ewest d ata. H owever, the PQZIP
compression itself allows f or t he s torage o f a 1 000 t imes m ore information t han
typical f ormats & in addition t he G4K B LACKBOX D evice s eries i s eq uipped w ith
substantial m emory ca pacity ( G4410 - 128MB; G 4420-4GB & G 4430-16GB). This
dramatically i ncreases st orage capacity and, thus, the G 4430 i s ca pable o f
recording and storing all electrical wave forms, all the time, for more than a year.
Additionally b y simply d ownloading t he f iles f rom t he I ncoming F older u sing
PQSCADA / FTP, data can be stored outside the G4K's on-board memory up to your
Network Server's capacity.
SEE ALSO
PQZIP Recording - Principle
Default Settings
PQZIP Recording - Configuration
Enabling / Disabling PQZIP
Fixed Quality vs. Fixed Ratio
File Capacity
FFT Mode
Erase All PQZIP Data
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