YOKOGAWA wt3000 User Manual

App-15
IM 760301-01E
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App
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Index
Appendix
• $PublicInfo (Common Information)
FormatVersion: Header file version No. (common to YOKOGAWA’s header files)
Model: Model name
Endian: Endian mode when saving data (Big)
*1
DataFormat: Storage format of the binary waveform display data (Trace)
*2
GroupNumber: The number of “$Group”s indicated below
TraceTotalNumber: Total number of target waveforms
DataOffset: Start position of the binary waveform display data
*3
• $Group1 (Group Information)
TraceNumber: Number of waveforms in this group
BlockNumber: Number of blocks in this group
*4
TraceName: Name of each waveform
BlockSize: Number of data points in a single block of each waveform
VResolution: Value of coefficient VResolution of the Y-axis conversion equation of
each waveform
*5
VOffset: Value of coefficient VOffset of the Y-axis conversion equation of each
waveform
*5
VDataType: Type of binary waveform display data of each waveform
*6
VUnit: Unit used on the Y-axis of each waveform (no effect on the data)
VPlusOverData: Error data when the binary data of each waveform is greater than or
equal to this value
VMinusOverData: Error data when the binary data of each waveform is less than or
equal to this value
VMaxData: Maximum value of the binary data of each waveform
VMinData: Minimum value of the binary data of each waveform
HResolution: Value of coefficient HResolution of the X-axis conversion equation of
each waveform
HOffset: Value of coefficient HOffset of the X-axis conversion equation of each
waveform
HUnit: Unit used on the X-axis of each waveform (no effect on the data)
Date: Date when the trigger occurred
Time: Time when the trigger occurred
• $PrivateInfo (Model-Specific Information)
ModelVersion: Version No. of the instrument
*1 Endian mode when saving data
Big: Motorola 68000-family data
*2 Storage format of the binary waveform display data
Trace: Format in which each block contains a waveform
*3 Start position of the binary waveform display data
Offset from the beginning of the file. Always 8192 on the WT3000
*4 Maximum number of blocks in the group
Maximum number of blocks when the number of blocks varies for each waveform. Always 1
on the WT3000.
*5 Y axis conversion equation for each waveform
Y-axis value = VResolution × raw data + VOffset
*6 Data type
ISn: n-byte signed integer
IUn: n-byte unsigned integer
FSn: n-byte signed real number
FUn: n-byte unsigned real number
Bm: m-bit data
Appendix 3 ASCII Header File Format

YOKOGAWA wt3000 Specifications

General

Frequency Range	DC, 0.1 Hz to 1 MHz
Number of Input Elements	Up to 4 elements
Harmonic Measurement	Up to 500th order
Interfaces	USB, Ethernet, RS-232
Sampling Rate	2 MS/s
Voltage Range	1.5 V to 1000 V
Display	8.4-inch LCD