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Programming Guide 2-97
ESG Family Signal Generators Programming Commands and Examples
Reading the Status Byte, Example Program 10
Reading the Status Byte, Example Program 10
The following example reads the source’s status byte and checks for certain conditions: in
this case, an unleveled output condition and an undermodulated output condition are
created, and the Status Byte Register is read by the program to determine the
questionable condition.
Unleveled or undermodulated conditions are easy to produce from the front panel.
Follow the directions below:
• To create an unleveled output condition:
1. Set the source’s output amplitude to +20 dBm.
2. Set the source’s output frequency to the maximum value.
3. Turn on the source’s RF output.
4. Check the source’s display for the UNLEVEL annunciator.
• To create an undermodulated output condition:
1. Select a modulation menu (AM, FM, Phase Modulation).
2. Select an AC-coupled external source (i.e. Ext 1 AC-Coupled).
3. Turn on the modulation.
4. Do not connect any input to the selected external input.
5. Check the source’s display for the EXT1 LO annunciator.
CLEAR and RESET the controller, type the following commands, and RUN the program:
10 !********************************************************************
20 !
30 ! Read Status Byte Example
40 !
50 !********************************************************************
60 Sig_gen=719
70 CLEAR Sig_gen
80 CLEAR SCREEN
90 OUTPUT Sig_gen;"*CLS"
100 IF FNStat_con(Sig_gen,"UNLEVELED") THEN PRINT "Sig Gen Power Unleveled"
110 IF FNStat_con(Sig_gen,"MOD 1 UNDERMOD") THEN PRINT "Sig Gen Mod 1 Undermod"
120 IF FNStat_con(Sig_gen,"MOD 1 OVERMOD") THEN PRINT "Sig Gen Mod 1 Overmod"
130 IF FNStat_con(Sig_gen,"MOD 2 UNDERMOD") THEN PRINT "Sig Gen Mod 2 Undermod"
140 IF FNStat_con(Sig_gen,"MOD 2 OVERMOD") THEN PRINT "Sig Gen Mod 2 Overmod"
150 IF FNStat_con(Sig_gen,"OVEN COLD") THEN PRINT "Sig Gen Oven Cold"
160 IF FNStat_con(Sig_gen,"SYNTH UNLOCKED") THEN PRINT "Sig Gen Synth Unlock"
170 IF FNStat_con(Sig_gen,"10 MHZ REF UNLCK") THEN PRINT "Sig Gen 10 MHz Ref Unlck"
180 IF FNStat_con(Sig_gen,"1 GHZ REF UNLCK") THEN PRINT "Sig Gen 1 GHz LO Unlck"
- Agilent Technologies 1
- ESG Family Signal Generators 1
- Contents 3
- 1 Preparing for Use 5
- GPIB Overview 6
- Programming Guide 1-3 7
- 1-4 Programming Guide 8
- Programming Guide 1-9 13
- 1-10 Programming Guide 14
- 1-12 Programming Guide 16
- Transferring Data 18
- Modem Line Handshaking 19
- 1-16 Programming Guide 20
- GPIB Instrument Nomenclature 21
- GPIB Command Statements 22
- Local Lockout 24
- Programming Guide 1-21 25
- 10 CLEAR 7 25
- 10 CLEAR 719 25
- 1-22 Programming Guide 26
- 1-24 Programming Guide 28
- Getting Started with SCPI 29
- Standard Notation 30
- How to Use Examples 30
- Program and Response Messages 31
- 1-28 Programming Guide 32
- Subsystem Command Trees 33
- 1-30 Programming Guide 34
- More About Commands 36
- Program Message Examples 37
- Reading Instrument Errors 38
- Programming Guide 1-35 39
- 1-36 Programming Guide 40
- −1.23 leading signs allowed 42
- −7.89E−01 43
- −100 leading sign allowed 45
- 1-42 Programming Guide 46
- Programming Guide 1-43 47
- Status Byte Group 48
- Figure 1-18 49
- Status Groups 50
- Programming Guide 1-47 51
- Standard Event Status Group 52
- Figure 1-21 53
- 1-50 Programming Guide 54
- Programming Guide 1-51 55
- Figure 1-24 56
- Programming Guide 1-53 57
- 1-54 Programming Guide 58
- Programming Guide 1-57 61
- 1-58 Programming Guide 62
- 1-60 Programming Guide 64
- Programming Guide 1-61 65
- Programming Guide 1-63 67
- 1-64 Programming Guide 68
- 1-66 Programming Guide 70
- Programming Guide 1-67 71
- Programming Guide 1-69 73
- 1-70 Programming Guide 74
- 1-72 Programming Guide 76
- Sending BREAK Messages 77
- 1-74 Programming Guide 78
- 2 Programming Commands and 79
- Command Syntax 80
- IEEE 488.2 Common Commands 81
- *TRG (Trigger) 83
- *TST? (Self-Test) 83
- *WAI (Wait-to-continue) 83
- Subsystem Commands 84
- :AM Subsystem 85
- Amplitude Modulation Depth 86
- :CALibration Subsystem 90
- I/Q Calibration 91
- :COMMunicate Subsystem 92
- RS-232 RTS Echo 93
- RS-232 Timeout 93
- :DIAGnostic Subsystem 94
- Programming Guide 2-17 95
- :DISPlay Subsystem 96
- :DM and :BURSt Subsystems 97
- (ESG-D and ESG-DP Series) 97
- High Crest Mode State 98
- I Channel Offset Adjustment 98
- I/Q Adjustments State 98
- I/Q Gain Ratio Adjustment 99
- I/Q Modulation Phase Polarity 99
- Q Channel Offset Adjustment 99
- Quadrature Skew Adjustment 99
- :FM Subsystem 100
- Frequency Modulation Source 101
- Frequency Modulation State 102
- :FREQuency Subsystem 105
- Frequency Multiplier 106
- Frequency Offset 106
- Frequency Optimization 106
- Frequency Reference 107
- Frequency Reference State 107
- Phase Adjustment 107
- Set Phase Reference 108
- Start Frequency 108
- Stop Frequency 108
- :LFOutput Subsystem 109
- 2-32 Programming Guide 110
- Low Frequency Output Source 111
- Low Frequency Output State 111
- Low Frequency Output Waveform 111
- :LIST Subsystem 112
- List Direction 113
- List Mode 113
- List Trigger Source 113
- List Type 113
- Load List From Step Sweep 114
- Manual Point 114
- Power List 114
- Power List Points Query 114
- Preset List 114
- All Memory Catalog 115
- Binary Memory Catalog 116
- Bit Memory Catalog 117
- FIR Memory Catalog 117
- Shape Memory Catalog 117
- Copy Files 117
- Delete All 117
- Delete Binary 118
- Delete Bit 118
- Programming Guide 2-41 119
- List Memory Catalog 120
- Load Sweep List 120
- Memory Data Load 120
- Memory Filename Query 120
- Modulation Catalog Types 120
- Rename File 121
- State Comment 121
- State Memory Catalog 121
- Store Sweep List 121
- :OUTPut Subsystem 122
- RF Output Modulation State 123
- RF Output State 123
- :PM Subsystem 124
- Φ Modulation Source 125
- Φ Modulation State 125
- 2-48 Programming Guide 126
- Programming Guide 2-49 127
- 2-50 Programming Guide 128
- :POWer Subsystem 129
- Define Power Units 130
- Programming Guide 2-53 131
- RF Output Power Mode 132
- RF Output Reference Power 132
- RF Output Start Power 133
- RF Output Stop Power 133
- :PULM Subsystem 134
- Pulse Modulation Source 135
- Pulse Modulation State 135
- :ROUTe Subsystem (Option UN8) 136
- Programming Guide 2-59 137
- *RST Value: Positive 138
- :STATus Subsystem 139
- ΦM zero calibration fails 140
- Programming Guide 2-63 141
- 2-64 Programming Guide 142
- Programming Guide 2-65 143
- 2-66 Programming Guide 144
- Programming Guide 2-67 145
- Register Enable 146
- :SWEep Subsystem 147
- :SYSTem Subsystem 148
- Power On/Preset Conditions 149
- Preset Language 149
- Preset Save 149
- Preset Type 149
- Remote Language 150
- SCPI Capability Query 150
- SCPI Version 150
- Screen Saver Delay 150
- Screen Saver Mode 151
- Screen Saver State 151
- System Preset 151
- :TRIGger Subsystem 152
- Single Sweep 153
- Trigger Output Polarity 153
- Trigger Source 153
- Using the Example Programs 154
- GPIB Check, Example Program 1 155
- Program Comments 156
- Programming Guide 2-79 157
- Programming Guide 2-81 159
- Programming Guide 2-83 161
- 2-84 Programming Guide 162
- Example Program 5 164
- Example Program 6 166
- 2-90 Programming Guide 168
- Signal, Example Program 8 170
- 2-94 Programming Guide 172
- 2-96 Programming Guide 174
- Programming Guide 2-97 175
- 2-98 Programming Guide 176
- 2-100 Programming Guide 178
- Programming Guide 2-101 179
- Programming Guide 2-103 181
- 2-104 Programming Guide 182
- 3 Remote Data Transfer 183
- ARB Waveform Data Downloads 184
- Data Requirements 185
- Data Limitations 185
- Data Volatility 186
- Programming Guide 3-5 187
- Mode > 187
- 3-6 Programming Guide 188
- The following program 189
- into volatile ARB 189
- Playing a Downloaded Waveform 192
- Programming Guide 3-11 193
- User File Data Downloads 194
- × muliframes per superframe 198
- × 8 × 26 × 51 198
- Programming Guide 3-17 199
- Downloading User File Data 200
- Programming Guide 3-19 201
- 3-22 Programming Guide 204
- 3-26 Programming Guide 208
- Downloading in List Format 211
- Downloading in Block Format 212
- Programming Guide 3-31 213
- Direct PRAM Download Problems 215
- User File Download Problems 217
- ÷ 8 (8 bits-per-character) 218
- Programming Guide 3-37 219
- Data Transfer Troubleshooting 219
- AB C D E 219
- Programming Guide 3-39 221
- 3-40 Programming Guide 222
- Programming Guide 4-1 223
- Table 1 AM Softkeys 224
- Table 2 Ampl Softkeys 226
- Table 3 Amplitude Hardkey 226
- Table 5 FM Softkeys 227
- Table 6 Freq Softkeys 229
- Table 7 Frequency Hardkey 229
- Table 8 I/Q Softkeys 229
- Table 9 LF Out Softkeys 231
- Table 10 Mod On/Off Hardkey 232
- Table 11 Phase Mod Softkeys 233
- Table 12 Preset Hardkey 235
- Table 13 Pulse Softkeys 235
- Table 14 Recall Softkeys 235
- Table 15 RF On/Off Hardkey 235
- Table 16 Save Softkeys 236
- Table 17 Sweep/List Softkeys 236
- Table 18 Trigger Hardkey 238
- Table 19 Utility Softkeys 238
- Function Entry Implemented 243
- Command Mapping 245
- 4-26 Programming Guide 248
- Programming Guide 4-27 249
- Additional Commands 250
- Index I-1 251
- I-2 Index 252
- Index I-3 253
- I-4 Index 254
- Index I-5 255
- I-6 Index 256
- Index I-7 257
- I-8 Index 258
- Index I-9 259
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