CIRCUTOR QNA500 series User Manual
Page 104
POWER QUALITY ANALYZER QNA500 8IO
QNA500 8IO Instruction manual
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0:
stop bits => 1
9600: speed
Specific instructions of the QNA500 module:
1. Formats the SD memory
P:
#np0000FOR^J
R:
#npBUSY repeat the question until #npACK or #npERR is received
2. Delete a file from the SD memory
P:
#np0000DELSTD-PROG.STD^J
R:
#npBUSY repeat the question until #npACK or #npERR is received
3. Default setup (50Hz)
P:
#np0000DEF^J
R:
#npBUSY repeat the question until #npACK or #npERR is received
4. Default setup (60Hz)
P:
#np0000DEX^J
R:
#npBUSY repeat the question until #npACK or #npERR is received
5. Read Transformation Ratio
P:
#np0000RRT^J
R:
#npvvvvvvssssiiiiipce
6. Write Transformation Ratio
P:
#np0000WRTvvvvvvssssiiiiipce^J
R:
#npBUSY repeat the question until #npACK or #npERR is received
Where:
vvvvvv:
voltage primary
ssss: voltage secondary
iiiii:
current primary
p:
current secondary
c:
type of circuit
e:
type of connection
7. Read Period and STD file name
P:
#np0000RPA^J
R:
#np00600STD-PROG.STD
8. Write Period and STD file name
P:
#np0000WPA00600STD-PROG^J
R:
#npBUSY repeat the question until #npACK or #npERR is received