Bk-precision 4078 - Manual Manuel d'utilisateur Page 90
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Noté. / 5. Basé sur avis des utilisateurs
4.17 GPIB Communication Protocol
(for models 4075GPIB & 4078GPIB)
4.17.1 General
This appendix describes the effects of interface messages on waveform generator operation and uses abbreviations
from the IEEE Standard 488.1-1987.
4.17.2 Responses to IEEE-488.1 Interface Messages
Interface messages and the effects of those messages on the instrument interface functions are defined in IEEE
Standard 488.1-1987. Where appropriate, the GPIB code is listed, in decimal.
UNL-Unlisten (63 with ATN)
UNT-Untalk (95 with ATN)
The UNL command places the listener function to its idle (unaddressed) state. In this idle state, the waveform
generator cannot accept commands from the GPIB.
The UNT command places the talker function to its idle state. In this idle state, the waveform generator cannot
output data through the GPIB.
When the talker and listener functions are idle, the front-panel ADRS indicator is off. If the waveform generator is
talk-addressed or listen-addressed, the ADRS indicator lights.
IFC-Interface Clear (Bus pin 9)
The IFC message places both the listener and talk functions to idle states. When the talker and listener functions are
idle, the front-panel ADRS indicator is off.
The IFC pulse is >= 100us.
DCL-Device Clear (20 with ATN)
The Device Clear message resets GPIB communication. That is, the DCL message clears all input and output
messages, as well as all unexecuted settings.
SDC-Selected Device Clear (4 with ATN)
The SDC message causes the same response as the DCL message. However, the waveform generator only responds
if it is listen-addressed.
GET-Group Execute Trigger (8 with ATN)
The waveform generator responds to the Group Execute Trigger message only if it is listening addressed and the
device trigger function is enabled. The TRIGger:MODE must be in TRIG, CONTinuous, or BURst and the
TRIGger:SOURce must be set to BUS to enable device triggering via GET.
- Safety Summary 3
- Table of Contents 5
- Section 1 7
- Specifications 8
- Modulation Combinations 10
- Section 2 11
- 2.6 Power Requirements 12
- 2.7 Grounding Requirements 12
- 2.8 Signal Connections 12
- 2.9 RS-232 Connection 12
- 2.11 GPIB Address 13
- 2.10 RS-232 Configuration 13
- Section 3 15
- 3.2 Display Window 16
- 3.3 Front Panel Controls 17
- 3.4 Back Panel Controls 17
- 3.5 Output connectors 18
- 3.6 MENU Keys 18
- 3.6.1 WAVEFORM Keys 20
- 3.6.2 MODE Key 22
- 3.6.3 ARBITRARY Key 23
- Start Address 25
- Markers 25
- 3.6.4 Arbitrary EDIT Menu 26
- 3.6.5 PULSE Menu 29
- 3.6.6 UTILITY Key 29
- 3.6.8 MODULATION Key 32
- 3.7 ON Key 34
- 3.8 Cursor Movement Keys 34
- 3.9 Rotary Input Knob 34
- 3.10 Power-On Settings 34
- 3.11 Memory 35
- 3.12 Displaying Errors 35
- 3.14 Examples 36
- 3.14.6 Using Voltage Offset 39
- 4.1 Overview 40
- 4.2 Device State 41
- 4.4 Device Address 41
- 4.5.1 The Input Buffer 42
- 4.5.2 The Output Queue 42
- 4.5.3 Response Messages 42
- 4.5.4 Coupled Commands 42
- 4.6 Block Data (GPIB Only) 43
- 4.8 Instrument Reset 43
- 4.9 Self Test 43
- 4.10 Command Syntax 43
- 4.11 Status Reporting 47
- 4.11.4 The Error Queue 48
- 4.11.5 Error Codes 48
- 4.12 Common Commands 51
- 4.13.1 SOURce Subsystem 55
- 4.13.1.2 Amplitude 57
- 4.13.1.3 Offset 57
- 4.13.1.5 Function 58
- 4.13.1.6 Point Rate 59
- 4.13.1.7 AM modulation 59
- 4.13.1.8 FM modulation 61
- 4.13.1.9 FSK modulation 62
- 4.13.1.10 Sweep control 64
- 4.13.1.11 PHASe adjust 66
- 4.13.1.12 PULSe setting 66
- 4.13.1.13 Duty Cycle 67
- 4.13.2 OUTPut Subsystem 68
- 4.13.2.1 Output State 68
- 4.13.3 Trigger Subsystem 68
- 4.13.3.1 Trigger Mode 69
- 4.13.3.2 Trigger Source 69
- 4.13.3.3 Burst Count 69
- 4.13.4 Arbitrary Subsystem 70
- 4.13.4.1 Point Rate 71
- 4.13.4.2 Address 71
- 4.13.4.3 Data 72
- 4.13.4.4 Line Draw 73
- 4.13.4.5 Clear 73
- 4.13.4.6 Copy 74
- 4.13.4.10 Start Address 76
- 4.13.4.11 Wavelength 76
- 4.13.4.12 Marker Address 76
- 4.13.4.13 Marker Length 77
- 4.13.4.14 Marker State 77
- 4.13.4.15 Save 77
- 4.13.5 Status Subsystem 78
- 4.13.5.1 Status Preset 78
- 4.13.5.2 Error Queue Read 78
- 4.13.5.3 Error Queue Enable 78
- 4.13.6 System Subsystem 81
- 4.13.6.3 SCPI Version 82
- 4.13.6.4 Security 82
- 4.13.6.5 Power-on Buffer 82
- 4.14.2 DCL - Device Clear 83
- 4.14.4 LLO - Local Lockout 83
- 4.15 SCPI Command Tree 84
- 4.15.4 :TRIGger Subsystem 85
- 4.15.5 :ARBitrary Subsystem 85
- 4.15.6 :STATus Subsystem 86
- 4.15.7 :SYSTem Subsystem 86
- 4.17.1 General 90
- Section 5 94
- 5.3 Performance Tests 95
- 5.3.3 Offset Accuracy 97
- 5.3.4 Sine Distortion 97
- 5.3.7 Operating Modes 98
- 5.3.10 RS232 Capability 100
- Performance Tests Results 101
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