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query a waveform which is not stored in memory, an error “Specified arb
waveform does not exist” will be generated.
DATA:ATTRibute:POINts? [<arb name>]
Query the number of data points for the specified waveform. A value from 1 to
65,536 will be returned. 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:PTPeak? [<arb name>]
Query the peak-to-peak value of all data points for the specified waveform. The
default waveform is the currently active one (FUNC:USER command). A value
from “0” to “+1.0” will be returned. “+1.0” indicates a full amplitude. The
maximum amplitude will be limited if the data points do not span the full range
of the output DAC (Digital-to-Analog converter). For example, the built-in sine
wave does not use the full range of binary values between ±1 and therefore its
maximum amplitude is 6.087 Vpp (into 50 ohms). If you query a waveform
which is not stored in memory, an error “Specified arb waveform does not exist”
will be generated.
DISPlay {OFF|ON}
Turn off or on the display. Disabling the front-panel display may speed up the
command execution for remote interface operation. Remote interface error
messages will be shown even when the display is off. Displaying a message on
the front-panel display overrides the display state.
The display is automatically enabled when the waveform generator has been
turned off or after *RST command, or when you return to local (front-panel)
operation.
The display state is saved when you store the instrument state using *SAV
command. Use *RCL command to recall the instrument state and the
front-panel display will return to the previous state.
DISPlay?
Query the display setting. Returns “0” (OFF) or “1” (ON).
DISPlay:TEXT <quoted string>
Show a message on the front panel display. This command overrides the display
- 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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