YOKOGAWA WT310EH User Manual page 65

Digital power meter communication interface
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<Function> Function
FPLL
PLL source frequency fPLL
Yes: Required. No: Not required.
(2) Numeric List Data Output Functions (These functions require the harmonic
measurement (/G5) option)
Applicable command
:NUMeric:LIST:ITEM<x> {NONE|<Function>,<Element>}
<Function> Function
U
I
P
PHIU
PHII
UHDF
IHDF
PHDF
Numeric Data Format
(1) N ormal Data
• Integrated values WH, WHP, WHM, AH, AHP, and AHM
ASCII: <NR3> format (mantissa: up to 6 digits, exponent: 2 digits. Example: [-]123.456E+00)
FLOAT: IEEE single-precision floating point (4-byte) format
• Elapsed integration time (TIME)
ASCII: <NR1> format in units of seconds. Example: 3600 for 1 hour (1:00:00).
FLOAT: IEEE single-precision floating point (4-byte) format in units of seconds. Example:
0x45610000 for 1 hour (1:00:00).
• No items (NONE)
ASCII: NAN (Not A Number)
FLOAT: 0x7E951BEE (9.91E+37)
• Other
ASCII: <NR3> format (mantissa: up to 5 digits, exponent: 2 digits. Example: [-]123.45.456E+00)
FLOAT: IEEE single-precision floating point (4-byte) format
(2) Error Data
• Data does not exist (the display shows "---------")
ASCII: NAN (Not A Number)
FLOAT: 0x7E951BEE (9.91E+37)
• Over-range (the display shows "---O L---")
• Overflow (the display shows "---O F---")
• Data over (the display shows " Error ")
ASCII: INF (INFinity)
FLOAT: 0x7E94F56A (9.9E+37)
Note
In 180° (Lead/Lag) display, the phase differences Φ (PHI) of elements 1 to 3 are output in the range between
–180.0 to 180.0 with lead (D) and lag (G) set to negative and positive values, respectively.
IM WT310E-17EN
Voltage U( )
Current I( )
Active power P( )
Phase difference between harmonic voltage U(k) and the fundamental wave U(1) φU( )
Phase difference between harmonic current I(k) and the fundamental wave I(1) φI(k)
Harmonic distortion factor of voltage Uhdf( )
Harmonic distortion factor of current Ihdf( )
Harmonic distortion factor of active power Phdf( )
6.11 NUMeric Group
WT Indicator <Element>
<Order>
[V Hz] or [A
No
No
Hz]
1
2
3
4
5
6
7
8
9
App
Index
6-25

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