Bnc 645 User Manual Page 135
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memory) will be returned. “Volatile” will be returned when a built-in waveform is
currently downloaded to volatile memory. To remove a waveform from volatile
memory or any use-defined waveforms in non-volatile memory, use DATA:DEL
command.
DATA:NVOLatile:CATalog?
List the names of all user-defined arbitrary waveforms downloaded to
non-volatile memory. Up to four waveform names will be returned. If there is no
waveform currently downloaded, a null string “” will be returned. To remove any
use-defined waveforms in non-volatile memory, use DATA:DEL command.
DATA:NVOLatile:FREE?
Query the number of available slots for storing the user-defined waveforms.
DATA:DELete <arb name>
Remove the specific arbitrary waveform from memory. It can be the waveforms
in volatile memory or the user-defined waveforms in non-volatile memory. You
cannot delete an arbitrary waveform that is currently output, or an error will be
generated.
DATA:DELete:ALL
Remove all user-defined waveforms from memory. All waveforms in volatile
memory and user-defined waveforms in non-volatile memory will be deleted,
but the built-in waveforms in non-volatile memory will not be deleted. You
cannot delete an arbitrary waveform that is currently output, or an error will be
generated.
DATA:ATTRibute:AVERage? [<arb name>]
Query the arithmetic average of all data points for the specified waveform
(-1≤≤). The default waveform is the currently active one (FUNC:USER
command). If you query a waveform which is not stored in memory, an error
“Specified arb waveform does not exist” will be generated.
DATA:ATTRibute:CFACtor? [<arb name>]
Query the crest factor of all data points for the specified waveform. The crest
factor represents the ratio of the peak value to the RMS value of the waveform.
The default waveform is the currently active one (FUNC:USER command). If you
- Model 645 1
- Arbitrary Waveform Generator 1
- Table of Contents 2
- 1 General Information 5
- 1.2 Warranty Information 6
- Limitation of warranty 7
- 1.3 Precaution of Operation 7
- 1.4 Upkeep of Model 645 8
- 1.5 Safety Information 8
- 1.6 Symbols and Terms 9
- 10
- 1.8 Options and Accessories 11
- 2 Overview 12
- 2.3.1 Front Panel 17
- 2.3.2 Rear Panel 18
- 3 Common Operations 19
- To Set Output Amplitude 23
- To Set DC Offset Voltage 25
- 4 Waveform Output Operations 33
- 4.2 Square Wave 34
- 4.3 Ramp Wave 35
- 4.4 Noise Waveform 36
- 4.5 Pulse Waveform 37
- Edge Time 38
- Pulse Duty Cycle 38
- 4.6 Arbitrary Waveform 39
- 4.7 Amplitude Modulation 41
- Modulation Depth 42
- 4.8 Frequency Modulation 44
- 4.9 Phase Modulation 47
- Phase Deviation 48
- Nimum 49
- 4.10 FSK Modulation 50
- 4.11 PWM Waveform 52
- 4.12 Frequency Sweep 54
- 4.13 Burst Operation 59
- Burst Period 61
- Burst Phase 61
- 4.14 Pattern Output 64
- Pattern Generator Cable 69
- 5 System Operations 72
- 5.3 Display Control 77
- 5.4 Beeper 78
- 5.5 Sound 78
- 5.6 Error Display 79
- 5.7 Calibration 79
- 6.1.1 USB Interface 80
- 6.1.2 GPIB Interface 80
- 6.1.3 LAN Interface 81
- Default Gateway 82
- Host Name 82
- Domain Name 82
- DNS Server 82
- The APPLy Commands 85
- IEEE 488.2 Common Commands 93
- ︱1︱2︱3︱4} 93
- 7 Error Messages 94
- 7.1 Command Errors 95
- 7.2 Execution Errors 96
- 7.3 Device Dependent Errors 107
- 7.4 Query Errors 108
- 7.5 Instrument Errors 108
- 7.6 Self-Test Errors 108
- 7.7 Calibration Errors 109
- Appendix 113
- A Specification List 114
- COMMON CHARACTERISTIC 116
- Modulation 117
- Pattern Mode CHARACTERISTIC 119
- Remote Interface Reference 120
- B.2 Output Data Formats 125
- B.3 Command Reference 125
- -- B 128
- BurstCount 130
- -- C 131
- -- D 132
- -- F 137
- -- I to O 147
- -- I 147
- -- L 148
- -- M 148
- -- O 150
- , and high/low 151
- -- P to Z 153
- -- P 153
- -- R 160
- -- S 160
- -- T 163
- -- U 164
- -- V 165
- -- W 169
- ︱1︱2︱3︱4> 170
- C. General Specifications 172
- D. Application Programs 173
- Visual Basic 180
- Visual C++ 180
- Creating the Application 181
- Using the Status Registers 183
- Object Property Setting 184
- THE SRQFetch FUNCTION 185
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