Page 1 MULTIFUNCTION GENERATOR WF1947/WF1948 Instruction Manual (External Control) NF Corporation...
Page 3 DA00037649-002 MULTIFUNCTION GENERATOR WF1947/WF1948 Instruction Manual (External Control)
Page 5 Preface This instruction manual describes the GPIB and USB interfaces of WF1947/WF1948. For operations from the panel, see the separate manual "WF1947/WF1948 Instruction Manual (Operations)." The GPIB and USB interfaces of WF1947/WF1948 features abundant functions and can control almost all operations on the front panel. In addition, they can read the setting values from external equipment such as PC.
Page 6: Table Of Contents
Table of Contents Page Preparations before Use .............................. 1 Overview of WF1947/WF1948 GPIB/USB Interface ..................2 USB Preparations ............................. 2 GPIB Preparations ............................2 Selecting Interface ............................3 GPIB Address Setting ............................5 GPIB EOI Setting ............................. 6 USB ID ................................7 Releasing Remote State ............................
Page 7 2.3.3.9 Pulse wave period setting/query [:SOURce[1|2]]:PULSe:PERiod ..........58 2.3.3.10 Pulse wave period unit selection/query [:SOURce[1|2]]:PULSe:PERiod:UNIT ....... 59 2.3.3.11 Pulse wave period user-defined unit setting/query [:SOURce[1|2]]:PULSe:PERiod:USER ..59 2.3.3.12 Ramp wave symmetry setting/query [:SOURce[1|2]]:FUNCtion:RAMP:SYMMetry ..... 60 WF1947/WF1948 Instruction Manual (External Control)
Page 8 :TRIGger[1|2]:SWEep:TIMer ................75 2.3.6.4 Trigger operation sweep mode external trigger signal polarity selection/query :TRIGger[1|2]:SWEep:SLOPe ................. 75 2.3.6.5 Trigger operation burst mode trigger source selection/query :TRIGger[1|2]:BURSt:SOURce 76 2.3.6.6 Trigger operation burst mode internal trigger cycle WF1947/WF1948 Instruction Manual (External Control)
Page 9 [:SOURce[1|2]]:FM:INTernal:FUNCtion[:SHAPe] ..............85 2.3.7.17 Modulated oscillation mode FM arbitrary waveform of modulation waveform selection/query [:SOURce[1|2]]:FM:INTernal:FUNCtion:USER ..............86 2.3.7.18 Modulated oscillation mode FM synchronization signal output selection/query :OUTPut[1|2]:SYNC:FM:TYPE ..............86 2.3.7.19 Modulated oscillation mode FSK hop frequency setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 10 2.3.7.38 Modulated oscillation mode PWM synchronization signal output selection/query :OUTPut[1|2]:SYNC:PWM:TYPE ..............97 2.3.7.39 Modulated oscillation mode DC offset modulation peak deviation setting/query [:SOURce[1|2]]:OFSM[:DEViation] ..................97 2.3.7.40 Modulated oscillation mode DC offset modulation modulation source selection/query WF1947/WF1948 Instruction Manual (External Control)
Page 11 [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:STOP ....... 112 2.3.8.23 Amplitude sweep center value setting/query [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:CENTer ......112 2.3.8.24 Amplitude sweep span value setting/query [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:SPAN ....... 113 2.3.8.25 Amplitude sweep marker value setting/query [:SOURce[1|2]]:MARKer:VOLTage[:LEVel][:IMMediate][:AMPLitude] ......114 2.3.8.26 Amplitude sweep start/stop value swapping setting WF1947/WF1948 Instruction Manual (External Control)
Page 12 2.3.9.8 Burst oscillation trigger burst mode: trigger delay time setting/query [:SOURce[1|2]]:BURSt[:TRIGger]:TDELay ................129 2.3.9.9 Burst oscillation gate mode: oscillation stop unit setting/query [:SOURce[1|2]]:BURSt:GATE:OSTop ................... 129 2.3.9.10 Burst oscillation triggered gate mode: oscillation stop unit setting/query [:SOURce[1|2]]:BURSt:TGATe:OSTop ................. 130 WF1947/WF1948 Instruction Manual (External Control) viii...
Page 13 2.3.11.19 Operation status register group (CH2) transition filter register (negative) setting/query :STATus:OPERation:CH2:NTRansition ............144 2.3.11.20 Operation status register group (CH2) transition filter register (positive) setting/query :STATus:OPERation:CH2:PTRansition ............144 2.3.11.21 Operation status register group (CH2) event Register setting :STATus:OPERation:CH2[:EVENt]? ................145 WF1947/WF1948 Instruction Manual (External Control)
Page 14 2.3.13.5 Setting output key to 1 at operation completion *OPC? ............155 2.3.13.6 Waiting for command/query execution *WAI ................155 2.3.13.7 Self diagnosis result query *TST? ....................155 2.3.13.8 External reference frequency input setting/query [:SOURce[1|2]]:ROSCillator:SOURce ..156 2.3.13.9 External reference frequency output setting/query [:SOURce[1|2]]:ROSCillator:OUTPut[:STATe] ..............156 WF1947/WF1948 Instruction Manual (External Control)
Page 15 Notes on Operations with External Control (Compatibility with older WF194x series) ....198 Descriptions of Individual Commands (Compatibility with older WF194x series) ......... 199 6.3.1 AAC ..............................200 6.3.2 ?AAP ..............................200 6.3.3 ?AAV ..............................201 6.3.4 ACL ............................... 201 WF1947/WF1948 Instruction Manual (External Control)
Page 16 6.3.38 DFC/?DFC ............................222 6.3.39 DFQ/?DFQ ............................222 6.3.40 DTT/?DTT ............................223 6.3.41 DTU/?DTU ............................223 6.3.42 DTY/?DTY ............................224 6.3.43 EAS/?EAS ............................. 224 6.3.44 ?ERR ..............................225 6.3.45 ESE/?ESE.............................. 225 6.3.46 ?ESR ..............................226 WF1947/WF1948 Instruction Manual (External Control)
Page 17 OFC/?OFC) ............................244 6.3.81 OFQ/?OFQ ............................244 6.3.82 OFS/?OFS ............................. 245 6.3.83 OFU/?OFU ............................245 6.3.84 OLD/?OLD ............................247 6.3.85 OLS/?OLS ............................. 247 6.3.86 OMO/?OMO ............................248 6.3.87 OPC/?OPC ............................248 6.3.88 ORG/?ORG ............................249 WF1947/WF1948 Instruction Manual (External Control) xiii...
Page 18 SPA/?SPA ............................. 265 6.3.122 SPC/?SPC.............................. 266 6.3.123 SPE/?SPE .............................. 266 6.3.124 SPF/?SPF .............................. 267 6.3.125 SPP/?SPP .............................. 267 6.3.126 SPU/?SPU ............................. 268 6.3.127 SSC/?SSC.............................. 268 6.3.128 STA/?STA ............................. 269 6.3.129 STE/?STE.............................. 269 6.3.130 STF/?STF .............................. 270 WF1947/WF1948 Instruction Manual (External Control)
Page 19 ?VSC ..............................288 6.3.159 VSE/?VSE ............................. 289 6.3.160 WAI ............................... 290 6.3.161 ?WC1 ..............................290 6.3.162 ?WC2 (WF1948) ..........................291 6.3.163 WE1/?WE1 ............................291 6.3.164 WE2/?WE2 (WF1948) ......................... 292 6.3.165 ?WSC ..............................292 6.3.166 WSE/?WSE ............................293 WF1947/WF1948 Instruction Manual (External Control)
Page 20 WF1947/WF1948 Instruction Manual (External Control)
Page 21: Preparations Before Use
1. Preparations before Use WF1947/WF1948 Instruction Manual (External Control)
Page 22: Overview Of Wf1947/Wf1948 Gpib/Usb Interface
Overview of WF1947/WF1948 GPIB/USB Interface Almost all the functions of WF1947/WF1948 can be remotely set via the GPIB or USB interface. Moreover, the saved data and the settings can be transferred to an external device. This allows you to easily configure an automatic measurement system.
Page 23: Selecting Interface
Selecting Interface You can select whether the GPIB or the USB interface is to be used. WF1947/WF1948 cannot be controlled from the interface that is not selected. The selected interface is backed up even when the power is turned off.
Page 24  Select [Interface] and then press the ENTER key to display the screen for selecting USB or GPIB. CAUTION When the computer recognizes WF1947/WF1948, if you switch the interface from USB to GPIB or disconnect the USB cable, the computer may exhibit unexpected behavior.
Page 25: Gpib Address Setting
 Set [Interface] to "GPIB" by performing step (1) to (3) described in "1.4 Selecting Interface."  Select [GPIB Address] and then press the ENTER key to display the screen for setting the GPIB address. Enter the address by using the numeric keypad on the panel. WF1947/WF1948 Instruction Manual (External Control)
Page 26: Gpib Eoi Setting
GPIB EOI Setting When you select the GPIB interface, you can switch the message terminator recognized by WF1947/WF1948. The set value is retained in the memory even when the power is turned off. "Enable" is set at shipping.  Set [Interface] to "GPIB" by performing step (1) to (3) described in "1.4 Selecting Interface."...
Page 27: Usb Id
USB ID If multiple units of WF1947/WF1948 are connected within a system via USB, the following numbers are used to enable the application identify each unit. • Vendor number : 3402(0x0D4A) • Product number : 13(0x000D)/WF1947, 14(0x000E)/WF1948 • Serial number...
Page 28 WF1947/WF1948 Instruction Manual (External Control)
Page 29: Command Descriptions
2. Command Descriptions WF1947/WF1948 Instruction Manual (External Control)
Page 30: Overview Of Commands
Overview of Commands The commands of WF1947/WF1948 comply with IEEE488.2 and SCPI (version 1999.0). SCPI defines the communication method used between controllers and measurement equipment. For general information about SCPI, refer to other appropriate documents. 2.1.1 Conventions For convenience in describing the commands, the following conventions are used in this document.
Page 31: Subsystem Commands
For example, to access ":OFFSet", the path must be [:SOURce] - :VOLTage - [:LEVel] - [:IMMediate] - :OFFSet. WF1947/WF1948 Instruction Manual (External Control)
Page 32 When an optional keyword is omitted, you should pay careful attention to the current path movement. For example, :VOLTage 1.0 sets the current path to ":SOURce." Therefore, if following two program messages :SOURce:VOLTage:LEVel:IMMediate:AMPLitude 1.0 :SOURce:FREQuency:FIXed 1000.0 are send as one program message, :SOURce:VOLTage:LEVel:IMMediate:AMPLitude 1.0; FREQuency:FIXed 1000.0 WF1947/WF1948 Instruction Manual (External Control)
Page 33 However, :SOURce:VOLTage 1.0; FREQuency:FIXed 1000.0 does not result in an error. WF1947/WF1948 Instruction Manual (External Control)
Page 34: Subsystem Command Syntax
Figure 2.2. The colon (:) at the beginning of the subsystem command is interpreted as a root specifier. This root specifier sets the current path to the root. WF1947/WF1948 Instruction Manual (External Control)
Page 35 If no channel number is specified, [1] is considered to be omitted, and the command is interpreted as the command for channel 1. For example, to control the channel 1 output to be turned ON, you can use either of the following commands. :OUTPut1:STATe ON :OUTPut:STATe ON WF1947/WF1948 Instruction Manual (External Control)
Page 36 Figure 2.5 Mantissa Syntax Number Figure 2.6 Index Syntax (2) Discrete Parameter (<DISC>) The syntax of the discrete parameter is shown in Figure 2.7. Selection 1 Selection 2 Selection 3 Selection N Figure 2.7 Discrete Parameter (<DISC>) Syntax WF1947/WF1948 Instruction Manual (External Control)
Page 37 The Boolean value parameter is interpreted as true for values other than 0, and as false for 0 (zero). If the specified value includes a fractional part, that value is interpreted as the whole number obtained by rounding the fractional part. Therefore, for example, "0.4" is false, and "0.5" is true. WF1947/WF1948 Instruction Manual (External Control)
Page 38 A query parameter is specified after "?" of query, and can be used for most of queries supported by the commands that have numeric parameters. For example, "MINimum" or "MAXimum" is specified as query parameter, the settable minimum value or settable maximum value can be queried, respectively. WF1947/WF1948 Instruction Manual (External Control)
Page 39: Program Message Syntax
The syntax of suffix is shown in Figure 2.11. Prefix Unit Figure 2.11 Suffix Syntax In WF1947/WF1948, the prefix and unit attached to a parameter are valid only for that command, and do not affect other commands. :SOURce1:VOLTage:AMPLitude:UNIT VRMS Sets the amplitude unit to Vrms :SOURce1:VOLTage:LEVel:IMMediate:AMPLitude 2.0...
Page 40: Response Message Syntax
The syntax of the real number response data is shown in Figure 2.14. <NR2> <NR3> Figure 2.14 Real Number Response Data (<REAL>) Syntax The syntax of the NR2 number response data is shown in Figure 2.15. Number Number Figure 2.15 NR2 Number Response Data (<NR2>) Syntax WF1947/WF1948 Instruction Manual (External Control)
Page 41 Figure 2.17 Integer Response Data (<INT>) Syntax (3) Discrete response data (<DISC>) The syntax of the discrete response data is shown in Figure 2.18. Selection 1 Selection 2 Selection 3 Selection N Figure 2.18 Discrete Response Data (<DISC>) Syntax WF1947/WF1948 Instruction Manual (External Control)
Page 42 (7) Indefinite length arbitrary block response data (<IBLK>) The syntax of the indefinite length arbitrary block response data is shown in Figure 2.22. Byte data ^END Figure 2.22 Indefinite Length Arbitrary Block Response Data (<IBLK>) Syntax WF1947/WF1948 Instruction Manual (External Control)
Page 43: Command List
Command List This section shows the list of the external control commands of WF1947/WF1948. 2.2.1 List Classification The commands are listed according to the following classification. Basic output signal settings •Oscillation mode selection Command list •Output waveform selection Command list •Individual output waveform setting...
Page 44: Oscillation Mode Selection Command List
2.3.1.14 230/15 230/20 sweep [:AMPLitude]:MODE selection/query Sweep oscillation mode [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate] 2.3.1.15 230/15 230/20 DC offset sweep :OFFSet:MODE selection/query Sweep oscillation mode [:SOURce[1|2]]:PULSe:DCYCle:MODE 2.3.1.16 250/15 250/15 duty sweep selection/query Burst oscillation mode [:SOURce[1|2]]:BURSt:STATe 2.3.1.17 100/10 100/10 selection/query WF1947/WF1948 Instruction Manual (External Control)
Page 45: Output Waveform Selection Command List
Processing time [ms] Refer Function Command Setting/Query ence GPIB Waveform selection/query [:SOURce[1|2]]:FUNCtion[:SHAPe] 2.3.2.1 300/10 300/15 Arbitrary waveform selection/query [:SOURce[1|2]]:FUNCtion:USER 2.3.2.2 25/10 25/15 Waveform polarity selection/query :OUTPut[1|2]:POLarity 2.3.2.3 100/10 100/15 Amplitude range selection/query :OUTPut[1|2]:SCALe 2.3.2.4 100/10 100/15 WF1947/WF1948 Instruction Manual (External Control)
Page 46: Individual Output Waveform Setting Command List
[:SOURce[1|2]]:PULSe:PERiod 2.3.3.9 95/15 75/20 period setting/query Pulse wave [:SOURce[1|2]]:PULSe:PERiod:UNIT 2.3.3.10 10/10 10/10 period unit selection/query Pulse wave [:SOURce[1|2]]:PULSe:PERiod:USER 2.3.3.11 15/15 20/15 period user-defined unit setting/query Ramp wave Ramp wave [:SOURce[1|2]]:FUNCtion:RAMP:SYMMetry 2.3.3.12 30/10 30/15 symmetry setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 47: Output Signal Setting Command List
Output voltage range [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate] 2.3.4.14 10/10 10/15 high level unit selection/query :HIGH:UNIT Output voltage range [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate] 2.3.4.15 145/15 145/20 low level setting/query :LOW Output voltage range [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate] 2.3.4.16 10/10 10/15 low level unit selection/query :LOW:UNIT WF1947/WF1948 Instruction Manual (External Control)
Page 48: Signal Output Operation Command List
Trigger operation burst mode :TRIGger[1|2]:BURSt:TIMer 2.3.6.6 10/10 15/15 internal trigger cycle setting/query Trigger operation burst mode :TRIGger[1|2]:BURSt:SLOPe 2.3.6.7 10/10 10/10 external trigger signal polarity selection/query Trigger operation execution control Trigger operation execution control :TRIGger[1|2]:SELected:EXECute 2.3.6.8 30/- 30/- setting WF1947/WF1948 Instruction Manual (External Control)
Page 49: Modulated Oscillation Mode Command List
10/10 (DSB-SC) [:SHAPe] modulation waveform selection/query Modulated oscillation mode AM [:SOURce[1|2]]:AMSC:INTernal:FUNCtion 2.3.7.11 25/10 30/15 (DSB-SC) :USER modulation waveform - arbitrary waveform selection/query Modulated oscillation mode AM :OUTPut[1|2]:SYNC:AMSC:TYPE 2.3.7.12 10/10 10/10 (DSB-SC) synchronization signal output selection/query WF1947/WF1948 Instruction Manual (External Control)
Page 50 Modulated oscillation mode PM [:SOURce[1|2]]:PM:INTernal:FUNCtion 2.3.7.26 10/10 10/15 modulation waveform selection/query [:SHAPe] Modulated oscillation mode PM [:SOURce[1|2]]:PM:INTernal:FUNCtion:USER 2.3.7.27 25/10 35/15 modulation waveform - arbitrary waveform selection/query Modulated oscillation mode PM :OUTPut[1|2]:SYNC:PM:TYPE 2.3.7.28 10/10 15/15 synchronization output selection/query WF1947/WF1948 Instruction Manual (External Control)
Page 51 Modulated oscillation mode DC offset [:SOURce[1|2]]:OFSM:INTernal:FUNCtion 2.3.7.42 10/10 10/10 modulation [:SHAPe] modulation waveform selection/query Modulated oscillation mode DC offset [:SOURce[1|2]]:OFSM:INTernal:FUNCtion 2.3.7.43 25/10 25/15 modulation :USER modulation waveform - arbitrary waveform selection/query WF1947/WF1948 Instruction Manual (External Control)
Page 52: Sweep Oscillation Mode Command List
2.3.8.10 20/15 20/15 span value setting/query Frequency sweep [:SOURce[1|2]]:MARKer:FREQuency 2.3.8.11 15/15 15/15 marker value setting/query Frequency sweep [:SOURce[1|2]]:FREQuency:SWAP 2.3.8.12 25/– 15/– start/stop value swapping setting Frequency sweep [:SOURce[1|2]]:FREQuency:STATe 2.3.8.13 10/– 15/– start/stop value output setting WF1947/WF1948 Instruction Manual (External Control)
Page 53 [:AMPLitude]:SPAN Amplitude sweep [:SOURce[1|2]]:MARKer:VOLTage[:LEVel] 2.3.8.25 20/15 20/20 marker value setting/query [:IMMediate][:AMPLitude] Amplitude sweep [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate] 2.3.8.26 20/– 20/– start/stop value swapping setting [:AMPLitude]:SWAP Amplitude sweep [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate] 2.3.8.27 15/– 15/– start/stop value output setting [:AMPLitude]:STATe WF1947/WF1948 Instruction Manual (External Control)
Page 54 2.3.8.38 20/15 20/15 span value setting/query Duty sweep [:SOURce[1|2]]:MARKer:PULSe:DCYCle 2.3.8.39 20/15 20/15 marker value setting/query Duty sweep [:SOURce[1|2]]:PULSe:DCYCle:SWAP 2.3.8.40 20/– 20/– start/stop value swapping setting Duty sweep [:SOURce[1|2]]:PULSe:DCYCle:STATe 2.3.8.41 10/– 10/– start/stop value output setting WF1947/WF1948 Instruction Manual (External Control)
Page 55: Burst Oscillation Mode Command List
2.3.9.8 10/10 15/15 trigger burst mode: trigger delay time setting/query Burst oscillation [:SOURce[1|2]]:BURSt:GATE:OSTop 2.3.9.9 10/10 10/15 gate mode: oscillation stop unit setting/query Burst oscillation [:SOURce[1|2]]:BURSt:TGATe:OSTop 2.3.9.10 10/10 10/10 triggered gate mode: oscillation stop unit setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 56: Memory Operation Command List
540/– 660/– Arbitrary waveform memory recall {:TRACe|DATA}:RECall 2.3.10.6 50/– 50/– Arbitrary waveform memory copy {:TRACe|DATA}:COPY 2.3.10.7 380/– 540/– Arbitrary waveform memory delete {:TRACe|DATA}:DELete 2.3.10.8 600/– 620/– Arbitrary waveform memory {:TRACe|DATA}:INFormation? 2.3.10.9 –/35 –/20 information acquisition WF1947/WF1948 Instruction Manual (External Control)
Page 57: Status System Command List
Operation status register group (CH1) :STATus:OPERation:CH1:PTRansition 2.3.11.15 10/10 10/15 transition filter register (positive) setting/query Operation status register group (CH1) :STATus:OPERation:CH1[:EVENt]? 2.3.11.16 –/10 –/10 event register query Operation status register group (CH1) :STATus:OPERation:CH1:ENABle 2.3.11.17 10/10 10/10 event enable register setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 58 Questionable data status register group :STATus:QUEStionable:PTRansition 2.3.11.25 10/10 10/10 transition filter register (positive) setting/query Questionable data status register group :STATus:QUEStionable[:EVENt]? 2.3.11.26 –/10 –/10 event register query Questionable data status register group :STATus:QUEStionable:ENABle 2.3.11.27 10/10 10/10 event enable register setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 59: Channel Operation 2-Channel Equipment (Wf1948) Command List
20/10 20/15 2-channel same value operation setting/query 2-channel equipment (WF1948) :CHANnel:DELTa 2.3.12.3 250/10 250/15 constant frequency difference mode: frequency difference setting/query 2-channel equipment (WF1948) :CHANnel:RATio 2.3.12.4 490/10 485/10 constant frequency ratio mode: frequency ratio setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 60: Other Operations Command List
Waiting for command/query execution *WAI 2.3.13.6 10/– 10/– Self diagnosis result query *TST? 2.3.13.7 –/10 –/10 External reference frequency input [:SOURce[1|2]]:ROSCillator:SOURce 2.3.13.8 15/10 15/15 setting/query External reference frequency output [:SOURce[1|2]]:ROSCillator:OUTPut[:STATe] 2.3.13.9 15/10 15/15 setting/query WF1947/WF1948 Instruction Manual (External Control)
Page 61: Descriptions Of Individual Commands
1 : The oscillation mode is the continuous oscillation mode Remarks If you want to switch to the continuous oscillation without being affected by the oscillation mode set at that time, use this command to switch to the continuous oscillation mode. WF1947/WF1948 Instruction Manual (External Control)
Page 62: Modulated Oscillation Mode Fsk Selection/Query [:Source[1|2]]:Fskey:state
<NBOL> → 0 : The oscillation mode is not the modulated oscillation mode PSK 1 : The oscillation mode is the modulated oscillation mode PSK Setting example :SOURce1:FSKey:STATe ON Switches the oscillation mode of CH1 to PSK WF1947/WF1948 Instruction Manual (External Control)
Page 63: Modulated Oscillation Mode Fm Selection/Query [:Source[1|2]]:Fm:state
<NBOL> → 0 : The oscillation mode is not the modulated oscillation mode PM 1 : The oscillation mode is the modulated oscillation mode PM Setting example :SOURce1:PM:STATe ON Switches the oscillation mode of CH1 to PM WF1947/WF1948 Instruction Manual (External Control)
Page 64: Modulated Oscillation Mode Am Selection/Query [:Source[1|2]]:Am:state
1/ON: Switches the oscillation mode to the modulation AM (DSB-SC) Query parameter None Response format <NBOL> <NBOL> → 0 : The oscillation mode is not the modulated oscillation mode AM (DSB-SC) 1 : The oscillation mode is the modulated oscillation mode AM (DSB-SC) WF1947/WF1948 Instruction Manual (External Control)
Page 65: Modulated Oscillation Mode Dc Offset Modulation Selection/Query [:Source[1|2]]:Ofsm:state
Setting parameter <state> ::= <BOL> <BOL> → 0/OFF: Switches to the continuous oscillation mode if the oscillation mode is the modulated oscillation mode PWM 1/ON: Switches the oscillation mode to the modulation (PWM) Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 66: Sweep Oscillation Mode Sweep Selection/Query [:Source[1|2]]:Sweep:mode
FIXed → Switch to the continuous oscillation when the oscillation mode is the sweep oscillation frequency sweep SWEep → Switches the oscillation mode to the sweep oscillation frequency sweep Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 67: Sweep Oscillation Mode Phase Sweep Selection/Query [:Source[1|2]]:Phase:mode
Setting parameter FIXed|SWEep FIXed → Switch to the continuous oscillation when the oscillation mode is the sweep oscillation amplitude sweep SWEep → Switches the oscillation mode to the sweep oscillation amplitude sweep Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 68: Sweep Oscillation Mode Dc Offset Sweep Selection/Query [:Source[1|2]]:Voltage[:Level][:Immediate]:Offset:mode
: The oscillation mode is not the sweep oscillation DC offset sweep : The oscillation mode is the sweep oscillation DC offset sweep Setting example :SOURce1:VOLTage[:LEVel][:IMMediate]:OFFSet:MODE SWEep Sets the oscillation mode of CH1 to the DC offset sweep WF1947/WF1948 Instruction Manual (External Control)
Page 69: Sweep Oscillation Mode Duty Sweep Selection/Query [:Source[1|2]]:Pulse:dcycle:mode
<NBOL> → 0 : The oscillation mode is not a burst oscillation mode 1 : The oscillation mode is a burst oscillation mode Setting example :SOURce1:BURSt:STATe ON Sets the oscillation mode of CH1 to burst WF1947/WF1948 Instruction Manual (External Control)
Page 70: Output Waveform Selection Command Details
<INT> → Memory number : 0 to 128 Query parameter None Response format <NR1> Setting example :SOURce1:FUNCtion:USER 3 Sets the arbitrary waveform of CH1 to the data of the memory number 3 Remarks * Memory number 0 is the edit memory. WF1947/WF1948 Instruction Manual (External Control)
Page 71: Waveform Polarity Selection/Query :Output[1|2]:Polarity
* For the meaning of each parameter, see the setting parameter Response format NORM|INV * For the meaning of each response data, see the setting parameter Setting example :OUTPut1:POLarity SINusoid, NORMal Sets the polarity of sine wave of CH1 to normal WF1947/WF1948 Instruction Manual (External Control)
Page 72: Amplitude Range Selection/Query :Output[1|2]:Scale
* For the meaning of each parameter, see the setting parameter Response format MFS|FS|PFS * For the meaning of each response data, see the setting parameter Setting example :OUTPut1:SCALe SINusoid, FS Sets the amplitude range of sine wave of CH1 to ± FS WF1947/WF1948 Instruction Manual (External Control)
Page 73: Individual Output Waveform Setting Command Details
LOGarithmic → Log * Optional (if omitted, nothing is changed) <m> ::= <REAL>|MINimum|MAXimum <REAL> → m (scale) MINimum → Sets the minimum value MAXimum → Sets the maximum value * Optional (if omitted, nothing is changed) WF1947/WF1948 Instruction Manual (External Control)
Page 74: Square Wave Duty Value Setting/Query [:Source[1|2]]:Function:square:dcycle
→ (Standard range) 99.9900%, (Extended range) 100.0000% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:FUNCtion:SQUare:DCYCle 20PCT Sets the duty of CH1 (square wave) to 20% WF1947/WF1948 Instruction Manual (External Control)
Page 75: Square Wave Extension On/Off Selection/Query [:Source[1|2]]:Function:square:extend
<duty> ::= <REAL>[<units>] <REAL> → Duty (pulse wave):0.0170% to 99.9830%, Resolution :0.0001% <units> ::= PCT|USER MINimum → 0.0170% MAXimum → 99.9830% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 76: Pulse Wave Pulse Width Setting/Query [:Source[1|2]]:Pulse:width
→ Sets the maximum value Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PULSe:WIDTh 1ms Sets the pulse width of CH1 to 1 ms WF1947/WF1948 Instruction Manual (External Control)
Page 77: Pulse Wave Rising Time Setting/Query [:Source[1|2]]:Pulse:transition[:Leading]
Resolution: 3 digits or 0.1 ns <eunits> ::= MA|K|M|U|N <units> ::= S MINimum → 15.0 ns MAXimum → 62.5 Ms Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 78: Pulse Wave Period Setting/Query [:Source[1|2]]:Pulse:period
→ Sets the maximum value Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PULSe:PERiod 1US Sets the period of CH1 to 1 μs WF1947/WF1948 Instruction Manual (External Control)
Page 79: Pulse Wave Period Unit Selection/Query [:Source[1|2]]:Pulse:period:unit
Sets the maximum value * Optional (if omitted, nothing is changed) <n> ::= <REAL>|MINimum|MAXimum <REAL> → n (offset) MINimum → Sets the minimum value MAXimum → Sets the maximum value * Optional (if omitted, nothing is changed) WF1947/WF1948 Instruction Manual (External Control)
Page 80: Ramp Wave Symmetry Setting/Query [:Source[1|2]]:Function:ramp:symmetry
MAXimum → 100.00% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:FUNCtion:RAMP:SYMMetry 20PCT Sets the symmetry of ramp wave of CH1 to 20% WF1947/WF1948 Instruction Manual (External Control)
Page 81: Output Signal Setting Command Details
→ Hz USER → User-defined unit Query parameter: None Response format HZ|USER * For the meaning of each response data, see the setting parameter Setting example :SOURce1:FREQuency:UNIT HZ Sets the frequency unit of CH1 to Hz WF1947/WF1948 Instruction Manual (External Control)
Page 82: Frequency User-Defined Unit Setting/Query [:Source[1|2]]:Frequency:user
<form> ::= LIN|LOG <m> ::= <NR3> <n> ::= <NR2> * For the meaning of each response data, see the setting parameter Setting example :SOURce1:FREQuency:USER "kHz",LINear,0.001,0 Sets the user-defined unit of frequency of CH1 to "kHz" WF1947/WF1948 Instruction Manual (External Control)
Page 83: Amplitude Setting/Query [:Source[1|2]]:Voltage[:Level][:Immediate][:Amplitude]
Sets the amplitude of CH1 to 10 Vp-p Amplitude unit selection/query 2.3.4.5 [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:UNIT ■[:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:UNIT □[:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:UNIT? Description Selects/queries the amplitude unit Setting parameter VPP|VPK|VRMS|DBV|DBM|USER → Vp-p → Vpk VRMS → Vrms → dBV → dBm USER → User-defined unit WF1947/WF1948 Instruction Manual (External Control)
Page 84: Amplitude User-Defined Unit Setting/Query
<form> ::= LIN|LOG <m> ::= <NR3> <n> ::= <NR2> * For the meaning of each response data, see the setting parameter Setting example :SOURce1:VOLTage:LEVel:IMMediate:AMPLitude:USER "mVpk",LINear,1000,0 Sets the user-defined unit of amplitude of CH1 to "mVpk" WF1947/WF1948 Instruction Manual (External Control)
Page 85: Dc Offset Setting/Query [:Source[1|2]]:Voltage[:Level][:Immediate]:Offset
→ V USER → User-defined unit Query parameter None Response format V|USER * For the meaning of each response data, see the setting parameter Setting example :SOURce1:VOLTage:LEVel:IMMediate:OFFSet:UNIT V Sets the DC offset of CH1 to V WF1947/WF1948 Instruction Manual (External Control)
Page 86: Dc Offset User-Defined Unit Setting/Query
<form> ::= LIN|LOG <m> ::= <NR3> <n> ::= <NR2> * For the meaning of each response data, see the setting parameter Setting example :SOURce1:VOLTage:LEVel:IMMediate:OFFSet:USER "mV",LINear,1000,0 Sets the user-defined unit of DC offset of CH1 to "mV" WF1947/WF1948 Instruction Manual (External Control)
Page 87: Phase Setting/Query [:Source[1|2]]:Phase[:Adjust]
USER → User-defined unit Query parameter None Response format DEG|USER * For the meaning of each response data, see the setting parameter Setting example :SOURce1:PHASe:UNIT DEG Sets the unit of phase of CH1 to ° WF1947/WF1948 Instruction Manual (External Control)
Page 88: Phase User-Defined Unit Setting/Query [:Source[1|2]]:Phase:user
<form> ::= LIN|LOG <m> ::= <NR3> <n> ::= <NR2> * For the meaning of each response data, see the setting parameter Setting example :SOURce1:PHASe:USER "rad",LINear,0.01745,0 Sets the user-defined unit of phase of CH1 to "rad" WF1947/WF1948 Instruction Manual (External Control)
Page 89: Output Voltage Range High Level Setting/Query
* For the meaning of each response data, see the setting parameter Setting example :SOURce1:VOLTage:LEVel:IMMediate:HIGH:UNIT V Sets the unit of high level of CH1 to V Remarks * The user-defined unit is the same as that of DC offset. WF1947/WF1948 Instruction Manual (External Control)
Page 90: Output Voltage Range Low Level Setting/Query
* For the meaning of each response data, see the setting parameter Setting example :SOURce1:VOLTage:LEVel:IMMediate:LOW:UNIT V Sets the unit of low level of CH1 to V Remarks * The user-defined unit is the same as that of DC offset. WF1947/WF1948 Instruction Manual (External Control)
Page 91: Signal Output Operation Command Details
→ Setting of previous output off operation Query parameter None Response format ON|OFF|LAST * For the meaning of each response data, see the setting parameter Setting example :OUTPut1:PON ON Sets the output of power-on operation of CH1 to on WF1947/WF1948 Instruction Manual (External Control)
Page 92: Auto-Range Operation (Output Range) Selection/Query
→ Disables the external addition X0.4 → Adds 0.4 times of external input to the output → Adds 2 times of external input to the output → Adds 10 times of external input to the output Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 93: Load Impedance Setting/Query :Output[1|2]:Load
→ 10 kΩ INFinity → High-Z Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <INT>|INF Setting example :OUTPut1:LOAD 50OHM Sets the load impedance of CH1 to 50 Ω WF1947/WF1948 Instruction Manual (External Control)
Page 94: Trigger Operation Command Details
→ External trigger of CH1 (Only CH2 can be selected) Query parameter None Response format TIM|EXT|CH1 * For the meaning of each response data, see the setting parameter Setting example :TRIGger2:SWEep:SOURce EXT Sets the sweep trigger source of CH2 to external WF1947/WF1948 Instruction Manual (External Control)
Page 95: Trigger Operation Sweep Mode Internal Trigger Cycle Setting/Query :Trigger[1|2]:Sweep:timer
NEGative → Falling → Disabled Query parameter None Response format POS|NEG|OFF * For the meaning of each response data, see the setting parameter Setting example :TRIGger:SWEep:SLOPe NEGative Sets the external sweep trigger polarity to falling WF1947/WF1948 Instruction Manual (External Control)
Page 96: Trigger Operation Burst Mode Trigger Source Selection/Query :Trigger[1|2]:Burst:source
→ 1,000 s Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :TRIGger1:BURSt:TIMer 1MS Sets the internal burst trigger period of CH1 to 1 ms WF1947/WF1948 Instruction Manual (External Control)
Page 97: Trigger Operation Burst Mode External Trigger Signal Polarity
STARt|STOP STARt → Start STOP → Stop Sweep oscillation mode STARt|STOP|HOLD|RESume STARt → Start STOP → Stop HOLD → Hold RESume → Resume Remarks * This command cannot be used for the burst oscillation mode. WF1947/WF1948 Instruction Manual (External Control)
Page 98: Modulated Oscillation Mode Command Details
→ Internal EXTernal → External Query parameter None Response format INT|EXT * For the meaning of each response data, see the setting parameter Setting example :SOURce1:AM:SOURce INTernal Sets the AM modulation source of CH1 to internal WF1947/WF1948 Instruction Manual (External Control)
Page 99: Modulated Oscillation Mode Am Modulation Frequency Setting/Query [:Source[1|2]]:Am:internal:frequency
Setting parameter SINusoid|SQUare|TRIangle|PRAMp|NRAMp|NOISe|USER SINusoid → Sine wave SQUare → Square wave TRIangle → Triangle wave PRAMp → Rising ramp wave NRAMp → Falling ramp wave NOISe → Noise USER → Arbitrary wave Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 100: Modulated Oscillation Mode Am Arbitrary Waveform Of Modulation Waveform Selection/Query [:Source[1|2]]:Am:internal:function:user
Setting parameter SYNC|MSYNc|MFCTn SYNC → Waveform synchronization MSYNc → Internal modulation synchronization MFCTn → Internal modulation signal Query parameter None Response format SYNC|MSYN|MFCT * For the meaning of each response data, see the setting parameter WF1947/WF1948 Instruction Manual (External Control)
Page 101: Modulated Oscillation Mode Am (Dsb-Sc) Modulation Degree Setting/Query
→ External modulation source Query parameter None Response format INT|EXT * For the meaning of each response data, see the setting parameter Setting example :SOURce1:AMSC:SOURce INTernal Sets the AM (DSB-SC) modulation source of CH1 to internal modulation source WF1947/WF1948 Instruction Manual (External Control)
Page 102: Modulated Oscillation Mode Am (Dsb-Sc) Modulation Frequency Setting/Query
Setting parameter SINusoid|SQUare|TRIangle|PRAMp|NRAMp|NOISe|USER SINusoid → Sine wave SQUare → Square wave TRIangle → Triangle wave PRAMp → Rising ramp wave NRAMp → Falling ramp wave NOISe → Noise USER → Arbitrary wave Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 103: Modulated Oscillation Mode Am (Dsb-Sc) Arbitrary Waveform Of Modulation Waveform
Setting parameter SYNC|MSYNc|MFCTn SYNC → Waveform synchronization MSYNc → Internal modulation synchronization MFCTn → Internal modulation signal Query parameter None Response format SYNC|MSYN|MFCT * For the meaning of each response data, see the setting parameter WF1947/WF1948 Instruction Manual (External Control)
Page 104: Modulated Oscillation Mode Fm Peak Deviation Setting/Query [:Source[1|2]]:Fm[:Deviation]
■[:SOURce[1|2]]:FM:SOURce □[:SOURce[1|2]]:FM:SOURce? Description Selects/queries the FM modulation source Setting parameter INTernal|EXTernal INTernal → Internal EXTernal → External Query parameter None Response format INT|EXT * For the meaning of each response data, see the setting parameter WF1947/WF1948 Instruction Manual (External Control)
Page 105: Modulated Oscillation Mode Fm Modulation Frequency Setting/Query [:Source[1|2]]:Fm:internal:frequency
Selects/queries the FM internal modulation waveform Setting parameter SINusoid|SQUare|TRIangle|PRAMp|NRAMp|NOISe|USER SINusoid → Sine wave SQUare → Square wave TRIangle → Triangle wave PRAMp → Rising ramp wave NRAMp → Falling ramp wave NOISe → Noise USER → Arbitrary wave WF1947/WF1948 Instruction Manual (External Control)
Page 106: Modulated Oscillation Mode Fm Arbitrary Waveform Of Modulation Waveform Selection/Query [:Source[1|2]]:Fm:internal:function:user
:OUTPut[1|2]:SYNC:FM:TYPE ■:OUTPut[1|2]:SYNC:FM:TYPE □:OUTPut[1|2]:SYNC:FM:TYPE? Description Selects/queries the FM synchronization output Setting parameter SYNC|MSYNc|MFCTn SYNC → Waveform synchronization MSYNc → Internal modulation synchronization MFCTn → Internal modulation signal Query parameter None Response format SYNC|MSYN|MFCT WF1947/WF1948 Instruction Manual (External Control)
Page 107: Modulated Oscillation Mode Fsk Hop Frequency Setting/Query
2.3.7.20 Modulated oscillation mode FSK modulation source selection/query [:SOURce[1|2]]:FSKey:SOURce ■[:SOURce[1|2]]:FSKey:SOURce □[:SOURce[1|2]]:FSKey:SOURce? Description Selects/queries the FSK modulation source Setting parameter INTernal|EXTernal|CH1 INTernal → Internal EXTernal → External → External of CH1 (Only CH2 can be selected) Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 108: Modulated Oscillation Mode Fsk Modulation Frequency Setting/Query [:Source[1|2]]:Fskey:internal:frequency
Sets the FSK internal modulation frequency of CH1 to 1 kHz 2.3.7.22 Modulated oscillation mode FSK synchronization signal output selection/query :OUTPut[1|2]:SYNC:FSKey:TYPE ■:OUTPut[1|2]:SYNC:FSKey:TYPE □:OUTPut[1|2]:SYNC:FSKey:TYPE? Description Selects/queries the FSK synchronization output Setting parameter SYNC|MSYNc SYNC → Waveform synchronization MSYNc → Internal modulation synchronization Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 109: Modulated Oscillation Mode Pm Peak Deviation Setting/Query [:Source[1|2]]:Pm[:Deviation]
■[:SOURce[1|2]]:PM:SOURce □[:SOURce[1|2]]:PM:SOURce? Description Selects/queries the PM modulation source Setting parameter INTernal|EXTernal INTernal → Internal EXTernal → External Query parameter None Response format INT|EXT * For the meaning of each response data, see the setting parameter WF1947/WF1948 Instruction Manual (External Control)
Page 110: Modulated Oscillation Mode Pm Modulation Frequency Setting/Query [:Source[1|2]]:Pm:internal:frequency
→ 1 MHz Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PM:INTernal:FREQuency 1kHz Sets the PM internal modulation frequency of CH1 to 1 kHz WF1947/WF1948 Instruction Manual (External Control)
Page 111: Modulated Oscillation Mode Pm Modulation Waveform Selection/Query [:Source[1|2]]:Pm:internal:function[:Shape]
Response format <NR1> Setting example :SOURce1:PM:INTernal:FUNCtion:USER 3 Sets the arbitrary waveform of PM internal modulation waveform of CH1 to the data of the memory number 3 Remarks * Memory number 0 is the edit memory. WF1947/WF1948 Instruction Manual (External Control)
Page 112: Modulated Oscillation Mode Pm Synchronization Output Selection/Query :Output[1|2]:Sync:pm:type
→ -1800.000° MAXimum → 1800.000° Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PSKey:DEViation 30DEG Sets the PSK deviation of CH1 to 30° WF1947/WF1948 Instruction Manual (External Control)
Page 113: Modulated Oscillation Mode Psk Modulation Source Selection/Query [:Source[1|2]]:Pskey:source
→ 3 MHz Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PSKey:INTernal:FREQuency 1kHz Sets the PSK internal modulation frequency of CH1 to 1 kHz WF1947/WF1948 Instruction Manual (External Control)
Page 114: Modulated Oscillation Mode Psk Synchronization Signal Output Selection/Query :Output[1|2]:Sync:pskey:type
→ 0.0000% MAXimum → (Square wave (duty variable range standard)) 49.9900%, (Square wave (duty variable range extend)) 50.0000%, (Pulse wave) 49.9000% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 115: Modulated Oscillation Mode Pwm Modulation Source Selection/Query [:Source[1|2]]:Pwm:source
Resolution: 5 digits or 0.1 mHz <eunits> ::= M|K|U|N <units> ::= HZ MINimum → 0.1 mHz MAXimum → 1 MHz Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 116: Modulated Oscillation Mode Pwm Modulation Waveform Selection/Query [:Source[1|2]]:Pwm:internal:function[:Shape]
[:SOURce[1|2]]:PWM:INTernal:FUNCtion:USER ■[:SOURce[1|2]]:PWM:INTernal:FUNCtion:USER □[:SOURce[1|2]]:PWM:INTernal:FUNCtion:USER? Description: Selects/queries the arbitrary waveform of PWM internal modulation waveform Setting parameter <memory> ::= <INT> <INT> → Memory number : 0 to 128 Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 117: Modulated Oscillation Mode Pwm Synchronization Signal Output Selection/Query :Output[1|2]:Sync:pwm:type
<REAL> → Peak deviation: 0 V to 10 V/open, Resolution: (499.9 mV or less) 4 digits or 0.1 mV, (0.5 V or more) 5 digits or 1 mV <eunits> ::= M <units> ::= V MINimum → 0 V/open MAXimum → 10 V/open WF1947/WF1948 Instruction Manual (External Control)
Page 118: Modulated Oscillation Mode Dc Offset Modulation Modulation Source Selection/Query
Setting parameter <frequency>|MINimum|MAXimum <frequency> ::= <REAL>[<eunits>][<units>] <REAL> → Internal modulation frequency: 0.1 mHz to 100 kHz, Resolution: 5 digits or 0.1 mHz <eunits> ::= M|K|U|N <units> ::= HZ MINimum → 0.1 mHz MAXimum → 100 kHz WF1947/WF1948 Instruction Manual (External Control)
Page 119: Modulated Oscillation Mode Dc Offset Modulation Modulation Waveform Selection/Query [:Source[1|2]]:Ofsm:internal:function[:Shape]
[:SOURce[1|2]]:OFSM:INTernal:FUNCtion:USER ■ [:SOURce[1|2]]:OFSM:INTernal:FUNCtion:USER □ [:SOURce[1|2]]:OFSM:INTernal:FUNCtion:USER? Description Selects/queries the arbitrary waveform of internal modulation waveform of DC offset modulation Setting parameter <memory> ::= <INT> <INT> → Memory number : 0 to 128 Query parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 120: Modulated Oscillation Mode Dc Offset Modulation Synchronization Signal Output Selection/Query :Output[1|2]:Sync:ofsm:type
MFCTn → Internal modulation signal Query parameter None Response format SYNC|MSYN|MFCT * For the meaning of each response data, see the setting parameter Setting example :OUTPut1:SYNC:OFSM:TYPE SYNC Sets the DC offset modulation synchronization output of CH1 to waveform synchronization WF1947/WF1948 Instruction Manual (External Control)
Page 121: Sweep Oscillation Mode Command Details
→ One way TRIangle → Shuttle Query parameter None Response format RAMP|TRI * For the meaning of each response data, see the setting parameter Setting example :SOURce1:SWEep:INTernal:FUNCtion RAMP Sets the sweep direction of CH1 to one way WF1947/WF1948 Instruction Manual (External Control)
Page 122: Basic Sweep Setting Sweep Time Setting/Query [:Source[1|2]]:Sweep:time
<level> ::= <REAL>[<units>] <REAL> → Stop level value: -100.00% to 100.00%, Resolution: 0.01% <units> ::= PCT MINimum → -100.00% MAXimum → 100.00% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 123: Basic Sweep Setting Stop Level Selection/Query [:Source[1|2]]:Sweep:slevel:state
Selects/queries the oscillation stop unit of sweep oscillation Setting parameter HALF|CYCLe HALF → Half cycle CYCLe → 1 cycle Query parameter None Response format HALF|CYCL * For the meaning of each response data, see the setting parameter WF1947/WF1948 Instruction Manual (External Control)
Page 124: Frequency Sweep Starting Value Setting/Query [:Source[1|2]]:Frequency:start
Setting parameter <frequency>|MINimum|MAXimum <frequency> ::= <REAL>[<eunits>][<units>] <REAL> → Stop value: 0.01 μHz to 30 MHz, Resolution: 0.01 μHz * The setting range varies depending on the waveform or oscillation mode. <eunits> ::= M|K|U|N <units> ::= HZ WF1947/WF1948 Instruction Manual (External Control)
Page 125: Frequency Sweep Center Value Setting/Query [:Source[1|2]]:Frequency:center
→ Sets the maximum value Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:FREQuency:CENTer 1KHZ Sets the center value of frequency sweep of CH1 to 1 kHz WF1947/WF1948 Instruction Manual (External Control)
Page 126: Frequency Sweep Span Value Setting/Query [:Source[1|2]]:Frequency:span
* The setting range varies depending on the waveform or oscillation mode. <eunits> ::= M|K|U|N <units> ::= HZ CENTer → Center value of frequency sweep MINimum → Sets the minimum value MAXimum → Sets the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 127: Frequency Sweep Start/Stop Value Swapping Setting [:Source[1|2]]:Frequency:swap
STARt|STOP STARt → Switches the output to the start value STOP → Switches the output to the stop value Setting example :SOURce1:FREQuency:STATe STARt Switches the state of frequency sweep of CH1 to the start value WF1947/WF1948 Instruction Manual (External Control)
Page 128: Phase Sweep Starting Value Setting/Query [:Source[1|2]]:Phase:start
<REAL> → Stop value: -1800.000° to 1800.000°, Resolution: 0.001° <units> ::= DEG MINimum → -1800.000° MAXimum → 1800.000° Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> WF1947/WF1948 Instruction Manual (External Control)
Page 129: Phase Sweep Center Value Setting/Query [:Source[1|2]]:Phase:center
<phase> ::= <REAL>[<units>] <REAL> → Span value: 0.000° to 3600.000°, Resolution: 0.001° <units ::= DEG MINimum → 0.000° MAXimum → 3600.000° Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value WF1947/WF1948 Instruction Manual (External Control)
Page 130: Phase Sweep Marker Value Setting/Query [:Source[1|2]]:Marker:phase
Sets the marker value of phase sweep of CH1 to 90° 2.3.8.19 Phase sweep start/stop value swapping setting [:SOURce[1|2]]:PHASe:SWAP ■[:SOURce[1|2]]:PHASe:SWAP Description Swaps the start value with stop value of the phase sweep Setting parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 131: Phase Sweep Start/Stop Value Output Setting [:Source[1|2]]:Phase:state
→ 20 Vp-p/open, 10 Vp-p/50Ω Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:VOLTage:LEVel:IMMediate:AMPLitude:STARt 5VPP Sets the start value of amplitude sweep of CH1 to 5 Vp-p WF1947/WF1948 Instruction Manual (External Control)
Page 132: Amplitude Sweep Stop Value Setting/Query [:Source[1|2]]:Voltage[:Level][:Immediate][:Amplitude]:Stop
Resolution: (999.9 mVp-p or less) 4 digits or 0.1 mVp-p, (1 Vp-p or more) 5 digits or 1 mVp-p <eunits> ::= M <units> ::= VPP|VPK|VRMS|DBV|DBM MINimum → 0 Vp-p MAXimum → 20 Vp-p/open, 10 Vp-p/50Ω WF1947/WF1948 Instruction Manual (External Control)
Page 133: Amplitude Sweep Span Value Setting/Query [:Source[1|2]]:Voltage[:Level][:Immediate][:Amplitude]:Span
→ 20 Vp-p/open, 10Vp-p/50Ω Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:VOLTage:LEVel:IMMediate:AMPLitude:SPAN 5VPP Sets the span value of amplitude sweep of CH1 to 5 Vp-p WF1947/WF1948 Instruction Manual (External Control)
Page 134: Amplitude Sweep Marker Value Setting/Query [:Source[1|2]]:Marker:voltage[:Level][:Immediate][:Amplitude]
Sets the marker value of amplitude sweep of CH1 to 5 Vp-p 2.3.8.26 Amplitude sweep start/stop value swapping setting [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:SWAP ■[:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:SWAP Description Swaps the start value with stop value of the amplitude sweep Setting parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 135: Amplitude Sweep Start/Stop Value Output Setting [:Source[1|2]]:Voltage[:Level][:Immediate][:Amplitude]:State
→ 10 V/open, 5 V/50Ω Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:VOLTage[:LEVel][:IMMediate]:OFFSet:STARt 2.5V Sets the start value of DC offset of CH1 to 2.5 V WF1947/WF1948 Instruction Manual (External Control)
Page 136: Dc Offset Sweep Stop Value Setting/Query [:Source[1|2]]:Voltage[:Level][:Immediate]:Offset:stop
Resolution: (± 499.9 mV or less) 4 digits or 0.1 mV, (± 0.5 V or more) 5 digits or 1 mV <eunits> ::= M <units> ::= V MINimum → -10 V/open, -5 V/50Ω MAXimum → 10 V/open, 5 V/50Ω WF1947/WF1948 Instruction Manual (External Control)
Page 137: Dc Offset Sweep Span Value Setting/Query [:Source[1|2]]:Voltage[:Level][:Immediate]:Offset:span
→ 20 V/open, 10 V/50Ω Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:VOLTage[:LEVel][:IMMediate]:OFFSet:SPAN 2.5V Sets the span value of DC offset of CH1 to 2.5 V WF1947/WF1948 Instruction Manual (External Control)
Page 138: Dc Offset Sweep Marker Value Setting/Query [:Source[1|2]]:Marker:voltage[:Level][:Immediate]:Offset
Sets the marker value of DC offset of CH1 to 2.5 V 2.3.8.33 DC offset sweep start/stop value swapping setting [:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate]:OFFSet:SWAP ■[:SOURce[1|2]]:VOLTage[:LEVel][:IMMediate]:OFFSet:SWAP Description Swaps the start value with stop value of the DC offset sweep Setting parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 139: Dc Offset Sweep Start/Stop Value Output Setting [:Source[1|2]]:Voltage[:Level][:Immediate]:Offset:state
(Pulse wave) 99.9830% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PULSe:DCYCle:STARt 20PCT Sets the start value of duty sweep of CH1 to 20% WF1947/WF1948 Instruction Manual (External Control)
Page 140: Duty Sweep Stop Value Setting/Query [:Source[1|2]]:Pulse:dcycle:stop
(Pulse wave) 99.9830% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PULSe:DCYCle:STOP 20PCT Sets the stop value of duty sweep of CH1 to 20% WF1947/WF1948 Instruction Manual (External Control)
Page 141: Duty Sweep Center Value Setting/Query [:Source[1|2]]:Pulse:dcycle:center
(Pulse wave) 99.9830% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PULSe:DCYCle:CENTer 20PCT Sets the center value of duty sweep of CH1 to 20% WF1947/WF1948 Instruction Manual (External Control)
Page 142: Duty Sweep Span Value Setting/Query [:Source[1|2]]:Pulse:dcycle:span
(Pulse wave) 99.9660% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:PULSe:DCYCle:SPAN 20PCT Sets the span value of duty sweep of CH1 to 20% WF1947/WF1948 Instruction Manual (External Control)
Page 143: Duty Sweep Marker Value Setting/Query [:Source[1|2]]:Marker:pulse:dcycle
Sets the marker value of duty sweep of CH1 to 20% 2.3.8.40 Duty sweep start/stop value swapping setting [:SOURce[1|2]]:PULSe:DCYCle:SWAP ■[:SOURce[1|2]]:PULSe:DCYCle:SWAP Description Swaps the start value with stop value of the duty sweep Setting parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 144: Duty Sweep Start/Stop Value Output Setting [:Source[1|2]]:Pulse:dcycle:state
STARt|STOP STARt → Switches the output to the start value STOP → Switches the output to the stop value Setting example :SOURce1:PULSe:DCYCle:STATe STARt Switches the state of duty sweep of CH1 to the start value WF1947/WF1948 Instruction Manual (External Control)
Page 145: Burst Oscillation Mode Command Details
<REAL> → Stop level value: -100.00% to 100.00%, Resolution: 0.01% <units> ::= PCT MINimum → -100.00% MAXimum → 100.00% Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> WF1947/WF1948 Instruction Manual (External Control)
Page 146: Burst Oscillation Stop Level Selection/Query [:Source[1|2]]:Burst:slevel:state
→ Burst synchronization Query parameter None Response format SYNC|BSYN * For the meaning of each response data, see the setting parameter Setting example :OUTPut1:SYNC:BURSt:TYPE SYNC Sets the burst synchronization output of CH1 to reference phase synchronization WF1947/WF1948 Instruction Manual (External Control)
Page 147: Burst Oscillation Auto Burst Mode: Mark Wave Number Setting/Query [:Source[1|2]]:Burst:auto:ncycles
<REAL> → Space wave number: 0.5 waves to 999,999.5 waves, Resolution: 0.5 waves MINimum → 0.5 waves MAXimum → 999,999.5 waves Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> WF1947/WF1948 Instruction Manual (External Control)
Page 148: Burst Oscillation Trigger Burst Mode: Mark Wave Number Setting/Query [:Source[1|2]]:Burst[:Trigger]:Ncycles
Query parameter [MINimum|MAXimum] MINimum → Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :SOURce1:BURSt:TRIGger:NCYCles 10 Sets the mark wave number of trigger burst of CH1 to 10 waves WF1947/WF1948 Instruction Manual (External Control)
Page 149: Burst Oscillation Trigger Burst Mode: Trigger Delay Time Setting/Query [:Source[1|2]]:Burst[:Trigger]:Tdelay
→ 1 cycle Query parameter None Response format HALF|CYCL * For the meaning of each response data, see the setting parameter Setting example :SOURce1:BURSt:GATE:OSTop HALF Sets the oscillation stop unit of gate of CH1 to half cycle WF1947/WF1948 Instruction Manual (External Control)
Page 150: Burst Oscillation Triggered Gate Mode: Oscillation Stop Unit Setting/Query [:Source[1|2]]:Burst:tgate:ostop
Query parameter None Response format HALF|CYCL * For the meaning of each response data, see the setting parameter Setting example :SOURce1:BURSt:TGATe:OSTop HALF Sets the oscillation stop unit of triggered gate of CH1 to half cycle WF1947/WF1948 Instruction Manual (External Control)
Page 151: Memory Operation Command Details
<memory> ::= <INT> <INT> → Memory number : 1 to 10 2.3.10.3 Basic setting memory recall *RCL ■*RCL Description Recalls from the setting memory Setting parameter <memory> ::= <INT> <INT> → Memory number : 1 to 10 WF1947/WF1948 Instruction Manual (External Control)
Page 152: Arbitrary Waveform Memory Arbitrary Waveform Data Transfer/Read-Out {:Trace|Data} [:Data]
→ x value of i-th control point (4 bytes) <y[i]> → y value of i-th control point (2 bytes) * Save the arbitrary data of <data> as the arbitrary wave name of <name> to the memory number of <memory> WF1947/WF1948 Instruction Manual (External Control)
Page 153 "(20 characters). Array format data cannot be set for the arbitrary wave memory number 0. Arbitrary wave name cannot be set for the arbitrary wave memory number 0. If it is specified, it is ignored. WF1947/WF1948 Instruction Manual (External Control)
Page 154: Arbitrary Waveform Memory Store {:Trace|Data}:Store
Reads the arbitrary wave file of the specified memory number into the edit memory (memory number 0) Setting parameter <file> <file> ::= <INT> <INT> → Memory number of calling source: 1 to 128 Setting example :TRACe:STORe:RECall 2 Reads the contents of memory number 2 into the edit memory. WF1947/WF1948 Instruction Manual (External Control)
Page 155: Arbitrary Waveform Memory Copy {:Trace|Data}:Copy
 Memory number 0 is the edit memory.  The arbitrary wave name of the memory number 0 is "<Edit Memory> "(20 characters).  The arbitrary wave data of the memory selected in "[:SOURce[1|2]]:FUNCtion:USER" is copied as a copy of arbitrary wave. WF1947/WF1948 Instruction Manual (External Control)
Page 156: Arbitrary Waveform Memory Delete {:Trace|Data}:Delete
<name>,<format>,<number> <name> ::= <STR> <STR> → Arbitrary wave name (20 characters) <format> ::= <INT> <INT> → Data format → Array format → Control point format <number> ::= <INT> <INT> → The number of data points WF1947/WF1948 Instruction Manual (External Control)
Page 157: Status System Command Details
- Questionable data status transition filter (negative) - Questionable data status transition filter (positive) - Questionable data status enable register - Warning event enable register - CH1 warning event enable register - CH2 warning event enable register WF1947/WF1948 Instruction Manual (External Control)
Page 158: Status Register At Power-On Clear Flag Setting/Query *Psc
Sets/queries the service request enable register Setting parameter <value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> Setting example *SRE 8 Sets the service request enable register to 8 WF1947/WF1948 Instruction Manual (External Control)
Page 159: Standard Event Status Register Query *Esr
Response format <NR1> Setting example *ESE 8 Sets the standard event status enable register to 8 2.3.11.8 Condition register query :STATus:OPERation:CONDition? □:STATus:OPERation:CONDition? Description Queries the operation status condition register Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 160: Transition Filter Register (Negative) Setting/Query :Status:operation:ntransition
<value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> Setting example :STATus:OPERation:PTRansition 512 Set the bit 9 of the operation status transition filter (positive) to 1 WF1947/WF1948 Instruction Manual (External Control)
Page 161: Event Register Query :Status:operation[:Event]
Sets the bit 9 of the operation status event enable register to 1 2.3.11.13 Operation status register group (CH1) Condition register query :STATus:OPERation:CH1:CONDition? □:STATus:OPERation:CH1:CONDition? Description Queries the CH1 operation status condition register Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 162: Setting/Query :Status:operation:ch1:Ntransition
<value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> Setting example :STATus:OPERation:CH1:PTRansition 8 Set the bit 3 of the CH1 operation status transition filter (positive) to 1 WF1947/WF1948 Instruction Manual (External Control)
Page 163: Operation Status Register Group (Ch1) Event Register Query :Status:operation:ch1[:Event]
Sets the bit 3 of the operation status event enable register to 1 2.3.11.18 Operation status register group (CH2) condition register query :STATus:OPERation:CH2:CONDition? □:STATus:OPERation:CH2:CONDition? Description Queries the CH2 operation status condition register Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 164: Setting/Query :Status:operation:ch2:Ntransition
<value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> Setting example :STATus:OPERation:CH2:PTRansition 8 Set the bit 3 of the CH2 operation status transition filter (positive) to 1 WF1947/WF1948 Instruction Manual (External Control)
Page 165: Operation Status Register Group (Ch2) Event Register Setting :Status:operation:ch2[:Event]
Sets the bit 3 of the operation status event enable register to 1 2.3.11.23 Questionable Data Status Register Group condition register query :STATus:QUEStionable:CONDition? □:STATus:QUEStionable:CONDition? Description Queries the questionable data status condition register Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 166: Setting/Query :Status:questionable:ntransition
<value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> Setting example :STATus:QUEStionable:PTRansition 16 Sets the bit 4 of questionable data status transition filter (positive) to 1 WF1947/WF1948 Instruction Manual (External Control)
Page 167: Query :Status:questionable[:Event]
Sets the bit 4 of the questionable data status event enable register to 1 2.3.11.28 Warning Event Register Group event register query :STATus:WARNing[:EVENt]? □:STATus:WARNing[:EVENt]? Description Queries the warning event register Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 168: Setting/Query :Status:warning:enable
:STATus:WARNing:CH1:ENABle ■:STATus:WARNing:CH1:ENABle □:STATus:WARNing:CH1:ENABle? Description Sets/queries the CH1 warning event enable register Setting parameter <value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> WF1947/WF1948 Instruction Manual (External Control)
Page 169: Query :Status:warning:ch2[:Event]
<value> ::= <INT> <INT> → For setting value, see "3. Status System." Query parameter None Response format <NR1> Setting example :STATus:WARNing:CH2:ENABle 16 Sets the bit 4 of the CH2 warning event enable register to 1 WF1947/WF1948 Instruction Manual (External Control)
Page 170: Channel Operation 2-Channel Equipment (Wf1948) Command Details
Response format IND|PHAS|TONE|RAT|DIFF * For the meaning of each response data, see the setting parameter Setting example :CHANnel:MODE INDependent Sets the channel mode to independent Remarks * This command can use only for 2-channel machine WF1947/WF1948 Instruction Manual (External Control)
Page 171: 2-Channel Equipment (Wf1948) 2-Channel Same Value Operation
None Response format ALL|NONE * For the meaning of each response data, see the setting parameter Setting example :INSTrument:COUPle ALL 2-channel equivalence setting is used Remarks * This command can use only for 2-channel machine WF1947/WF1948 Instruction Manual (External Control)
Page 172: 2-Channel Equipment (Wf1948) Constant Frequency Difference Mode: Frequency Difference
→ Queries the minimum value MAXimum → Queries the maximum value Response format <NR3> Setting example :CHANnel:DELTa 1KHZ Sets the frequency difference to 1 kHz Remarks * This command can use only for 2-channel machine WF1947/WF1948 Instruction Manual (External Control)
Page 173: 2-Channel Equipment (Wf1948) Constant Frequency Ratio Mode: Frequency Ratio
<INT> → Frequency ratio of CH2: 1 to 9,999,999 MINimum → 1 MAXimum → 9,999,999 Query parameter None Response format <NR1>,<NR1> Setting example :CHANnel:RATio 2,3 Sets the frequency ratio to 2:3 Remarks * This command can use only for 2-channel machine WF1947/WF1948 Instruction Manual (External Control)
Page 174: Other Operations Command Details
None Response format <code>,<message> <code> ::= <INT> <INT> → Error code <message> ::= <STR> <STR> → Error message 2.3.13.3 Setting initialization (status registers, etc. not cleared) *RST ■*RST Description Initializes the setting Setting parameter None WF1947/WF1948 Instruction Manual (External Control)
Page 175: Operation Completion Event Bit Setting *Opc
Queries the self diagnosis result Query parameter None Response format <NR1> → 0 Remarks This instrument always responds with 0. External control cannot check the internal state. Use the panel operation to check the internal state. WF1947/WF1948 Instruction Manual (External Control)
Page 176: External Reference Frequency Input Setting/Query [:Source[1|2]]:Roscillator:source
Query parameter None Response format <NBOL> <NBOL> → 0 : Output Off 1 : Output On Setting example :ROSCillator:OUTPut:STATe ON Set the reference frequency output to on Remarks * Specifying "[1|2]" does not affect the operation. WF1947/WF1948 Instruction Manual (External Control)
Page 177: Trigger/Oscillation Status Control
Trigger/Oscillation Status Control WF1947/WF1948 provides the commands to give a trigger from the external control (GET (Group Execute Trigger) and "*TRG") and the command to control an oscillation status (":TRIGger[1|2]:SELected:EXEcute"). These commands may be disabled depending on the oscillation mode as shown in Table 2.3. If a disabled command is received, it is ignored.
Page 178: System Unit
* One system unit is shared with DC offset, high level, and low level. The above three commands have the same function. Setting of system unit for phase: [:SOURce[1|2]]:PHASe:UNIT Setting of system unit for duty of square wave/pulse: [:SOURce[1|2]]:PULSe:DCYCle:UNIT Setting of system unit for period: [:SOURce[1|2]]:PULSe:PERiod:UNIT WF1947/WF1948 Instruction Manual (External Control)
Page 179: Status System
3. Status System WF1947/WF1948 Instruction Manual (External Control)
Page 180: Status Byte Register And Service Request Enable Register
WF1947/WF1948 provide the status reporting function defined in IEEE488.2. Status Byte Register and Service Request Enable Register The configuration of the service byte register and the service request enable register is shown in Figure 3.1. Status byte register Service request generation &...
Page 181: Status Byte Register
Figure 3.1. The service request enable register is cleared when the power is turned on while the power on status clear flag (set in *PSC ) is set to TRUE . WF1947/WF1948 Instruction Manual (External Control)
Page 182: Standard Event Status Register Group
Figure 3.2, and reflect the status of the selected bit to the ESB of the status byte register. The standard event status enable register is cleared when the power is turned on while the power on status clear flag (set in *PSC) is set to TRUE. WF1947/WF1948 Instruction Manual (External Control)
Page 183: Operation Status Register Group / Questionable Data Status Register Group
Questionable Data Status Register Group 3.3.1 Overview of Registers 3.3.1.1 Condition register The condition register shows the current status of WF1947/WF1948. This register is not cleared even when a query addressed to the condition register is received. Transition filter register 3.3.1.2 The transition filter register is used to determine the event bit transition.
Page 184: Event Register
The event enable register is cleared when :STATus:PRESet command is received or when the power on is turned on while the power on status clear flag (set in *PSC) is set to TRUE. WF1947/WF1948 Instruction Manual (External Control)
Page 185: Operation Status Register Group
( Non-use ) ( Non-use ) ( Non-use ) ( Non-use ) CH1 operation status register summary 1024 CH2 operation status register summary ( Non-use ) ( Non-use ) ( Reserved ) ( Reserved ) Always 0 WF1947/WF1948 Instruction Manual (External Control)
Page 186 Continuous oscillation/modulation/sweep/burst: RUN Shows the Run status and Hold status. Sweep: HOLD Shows the Hold status. 1024 Sweep/burst: TRIGGER WAIT Shows the TrigWait status. 2048 Modulation/sweep/burst: CONFLICT Shows the Conflict status. (Unused) (Unused) (Unused) Always 0 WF1947/WF1948 Instruction Manual (External Control)
Page 187: Continuous Oscillation
Figure 3.4 Relationship between Output and Operation Status Register (Bit 7 to 11) at Continuous Oscillation 3.3.2.2 Modulation Confilct Stop Stop Status of equipment Restriction [START] [STOP] STOP HOLD TRIGGER WAIT CONFLICT Figure 3.5 Relationship between Output and Operation Status Register (Bit 7 to 11) at Modulation WF1947/WF1948 Instruction Manual (External Control)
Page 188: Sweep
Stop Status of equipment Stop value Start value [HOLD] [RESUME] [STOP] Restriction [START] [STOP] STOP HOLD TRIGGER WAIT CONFLICT Figure 3.7 Relationship between Output and Operation Status Register (Bit 7 to 11) at Continuous Sweep WF1947/WF1948 Instruction Manual (External Control)
Page 189 WF1947/WF1948 Instruction Manual (External Control)
Page 190: Burst
Figure 3.8 Relationship between Output and Operation Status Register (Bit 7 to 11) at Auto Burst TrigWait TrigWait Confilct TrigWait Status of equipment DELAY DELAY TRIGGE TRIGGE Restriction STOP HOLD TRIGGER WAIT CONFLICT Figure 3.9 Relationship between Output and Operation Status Register (Bit 7 to 11) at Trigger Burst WF1947/WF1948 Instruction Manual (External Control)
Page 191 Figure 3.10 Relationship between Output and Operation Status Register (Bit 7 to 11) at Gate TrigWait TrigWait TrigWait Confilct Status of equipment TRIGGER Restriction TRIGGER TRIGGER TRIGGER STOP HOLD TRIGGER WAIT CONFLICT Figure 3.11 Relationship between Output and Operation Status Register (Bit 7 to 11) at Triggered Gate WF1947/WF1948 Instruction Manual (External Control)
Page 192: Questionable Data Status Register Group
Table 3.6 Questionable Data Status Register Weight Contents Overload (CH1) (Unused) (Unused) (Unused) Overheat detection (Unused) No external reference clock (Unused) Shows that the calibration is not completed. (Unused) 1024 Overload (CH2) (Unused) (Unused) (Unused) (Unused) Always 0 WF1947/WF1948 Instruction Manual (External Control)
Page 193: Warning Event Register Group
The warning event register shows the status change of the equipment due to the external control and does not show the status change of the equipment due to the panel operation. WF1947/WF1948 Instruction Manual (External Control)
Page 194 Table 3.7 Warning Event Register Weight Contents (Unused) (Unused) (Unused) (Unused) (Unused) (Unused) (Unused) (Unused) (Unused) CH1 warning event register summary 1024 CH2 warning event register summary (Unused) (Unused) (Unused) (Unused) Always 0 WF1947/WF1948 Instruction Manual (External Control)
Page 195: Event Enable Register
The event enable register is cleared when :STATus:PRESet command is received or when the power on is turned on while the power on status clear flag (set in *PSC) is set to TRUE. Others WF1947/WF1948 provide the error queue and error message queue. WF1947/WF1948 Instruction Manual (External Control)
Page 196: Error Message
4. Error Message WF1947/WF1948 Instruction Manual (External Control)
Page 197 • When the name of arbitrary waveform contains the double quotation (") • When the number of data points for the arbitrary waveform is incorrect When the number of used waveforms exceeds 128 or total amount exceeds 512 KW WF1947/WF1948 Instruction Manual (External Control)
Page 198 The talker was specified, but the message queue has no response message. -440 Query UNTERMINATED Query exists after "*IDN?" in the received string ("*IDN?" must be after indefinite response the last query in the received string). WF1947/WF1948 Instruction Manual (External Control)
Page 199 WF1947/WF1948 Instruction Manual (External Control)
Page 200: Specifications
5. Specifications WF1947/WF1948 Instruction Manual (External Control)
Page 201: Interface Functions
•Clear the error. •Release the SRQ send and reset the error factor bits in the status byte. •Disable the SRQ send. •Disable the LOCAL key (software key) operation of the panel. •Turn to the Local state. WF1947/WF1948 Instruction Manual (External Control)
Page 202: Multi-Line Interface Message
Multi-Line Interface Message WF1947/WF1948 Instruction Manual (External Control)
Page 203 WF1947/WF1948 Instruction Manual (External Control)
Page 204: Compatibility Of External Control
6. Compatibility of External Control WF1947/WF1948 Instruction Manual (External Control)
Page 205: Overview
Overview This chapter describes the compatibility of WF series in the external control of WF1947/WF1948. ■Older product WF194x series (hereinafter abbreviated as "older WF194x series.) Supports the command system in type 1 format of WF1947/WF1948. (excluding a part) For details of partial restrictions, see "6.1.1 External Control Interface (Compatibility with older WF194x series)."...
Page 206: External Control Interface (Compatibility With Older Wf194X Series)
As for the USB connection specification with the external control equipment, older WF194x series used the USB488 connection specification but the WF1947/WF1948 changes to the USB-TMC specification. USB driver software in the PC used for the external control must be changed.
Page 207 From the USB488, the specification method of the recognition ID for the individual device is changed. From the specification of address number, the following VISA resource name format is used: [Example of older WF194x series] [Example of WF1947: VISA resource name format] USB0:: 0x0D4A:: 0x000d::[Serial number]::INSTR WF1947/WF1948 Instruction Manual (External Control)
Page 208: General Differences In Commands (Compatibility With Older Wf194X Series)
WF1947/WF1948 because each concept of channel setting differs. Additional information on the command to be replaced is described in the detailed description for each command. WF1947/WF1948 do not support the commands in the type 2 format of older WF194x series. Replace with the WF1947/WF1948 commands that support the older WF194x series commands.
Page 209: Commands Subject To Restrictions (Compatibility With Older Wf194X Series)
When you replace the commands in the type 2 format of older WF194x series with the commands of WF1947/WF1948, if the behavior differs, replace them with the compatible commands in type 1 format of older WF194x series. For support status, see the compatibility support items in "6.2 Older WF194x Series Commands Support List."...
Page 210 (?ALT) The fixed string <Edit Memory> is returned as the name corresponding to the arbitrary waveform memory number 0. (?ERR) Returns the corresponding error message of WF1947/WF1948. (?MCO) The set memory comments are not recorded. (?IDT) ID read Returns the WF1947/WF1948 ID.
Page 211: Older Wf194X Series Commands Support List
[Compatibility support]  : Compatibility is supported.  : Commands in type 2 format are handled as WF1947/WF1948 commands. The action may be different from previous F194x series, or the commands may not be accepted.
Page 212 * 2: The unit selections for pulse width and cycle are set as the same value. * 3: The unit selections for DC offset, high level and low level are set as the same value. WF1947/WF1948 Instruction Manual (External Control)
Page 213 Sweep time STM/?STM :SWEep:TIME  Stop level (gated sweep) SLV/?SLV :SWEep:SLEVel  Selection (gated sweep) SLS/?SLS :SWEep:SLEVel:STATe  Start value of frequency sweep STF/?STF :FREQuency:STARt  Stop value SPF/?SPF :FREQuency:STOP  * 1: WF1948 only WF1947/WF1948 Instruction Manual (External Control)
Page 214 Center value CTU/?CTU :PULSe:DCYCle:CENTer  Span value SNU/?SNU :PULSe:DCYCle:SPAN  marker value MKU/?MKU :PULSe:DCYCle:MARKer  Start status/stop status USS/- :PULSe:DCYCle:STATe  Selection common to triggers SWO/?SWO :SWEep:OCOMmon  (Single/gated sweep) *1 * 1: WF1948 only WF1947/WF1948 Instruction Manual (External Control)
Page 215  Specification of transfer starting STT/?STT :DATA:DAC:ADDRess  address Selection of data transfer order AFM/?AFM :FORMat:BORDer   Copy operation ACP/- :DATA:COPY clear ACL/- :DATA:CLEar  All clear AAC/- :DATA:CLEar:ALL  * 1: WF1948 only WF1947/WF1948 Instruction Manual (External Control)
Page 216 Clearing event status registers and CLS/- *CLS  related queues Flag of clearing a status register at PSC/?PSC *PSC  power-on Reading status bytes -/?STS *STB  Service request enable register MSK/?MSK *SRE  * 1: WF1948 only WF1947/WF1948 Instruction Manual (External Control)
Page 217 Query of a result of self diagnosis at -/?TST *TST  power-on  Queries errors -/?ERR :SYSTem:ERRor Selection of header On/Off HDR/?HDR None  Version query -/?VER :SYSTem:VERSion   Load the ID -/?IDT *IDN * 1: WF1948 only WF1947/WF1948 Instruction Manual (External Control)
Page 218: Notes On Operations With External Control (Compatibility With Older Wf194X Series)
A waveform data value specified with parameter is converted to a twice number of the value so that it is correct waveform data, and then stored in the waveform memory of WF1947/WF1948. The "ARW" command stores the waveform data value specified with parameter in the waveform memory of WF1947/WF1948, as value itself.
Page 219: Descriptions Of Individual Commands (Compatibility With Older Wf194X Series)
Describes the response format of the query command. Type 2 (For reference) WF1947/WF1948 do not support the commands in the type 2 format of older WF194x series, but this is described as a reference for command replacement. Settings: Describes the specification with commands in Type 2 format.
Page 220: Aac
AAP 0.0000 Compatibility Information Compatibility support If an arbitrary waveform data of WF1947/WF1948 in the control point form is stored in the memory, the command causes an execution error. Only data in array format are supported. WF1947/WF1948 Instruction Manual (External Control)
Page 221: Aav
Response example AAV 0.0 Compatibility Information Compatibility support If an arbitrary waveform data of WF1947/WF1948 in the control point form is stored in the memory, the command causes an execution error. Only data in array format are supported. 6.3.4 ACL Description Clears arbitrary waveforms with the specified name.
Page 222: Acp
Type 2 (For reference):DATA:COPY “ARB_00”,“TRI” Compatibility Information Parameters of PRAMp (riding sawtooth wave) and NRAMp (falling sawtooth wave) do not cause a command error. However, the triangular wave based on the symmetry setting at that time is copied. WF1947/WF1948 Instruction Manual (External Control)
Page 223: Adv/?Adv
Type 2 (For reference) Settings: [:SOURce]:AM:INTernal:FUNCtion {SINusoid|TRIangle|SQUare|PRAMp|NRAMp} Query: [:SOURce]:AM:INTernal:FUNCtion? Setting example Changes a modulation waveform of amplitude modulation into a square wave. Type 1: AFC 2 Type 2 (For reference):AM:INT:FUNC SQU Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 224: Afm/?Afm
Type 2 (For reference):FORM:BORD NORM Compatibility Information Does not have impacts on the operation command for arbitrary waveform of WF1947/WF1948. This is effective only under control by the command to write arbitrary waveforms of the old WF194x series. WF1947/WF1948 Instruction Manual (External Control)
Page 225: Afn/?Afn
Settings: [:SOURce]:FUNCtion:USER {<arb number>}, {<arb name>}or [:SOURce]:FUNCtion:USER {<arb number>}or [:SOURce]:FUNCtion:USER, {<arb name>} Query: [:SOURce]:FUNCtion:USER? Setting example Selects the arbitrary waveform with name of "ARB_03". Type 1: AFN,“ARB_03” Type 2 (For reference):FUNC:USER,“ARB_03” Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 226: Afq/?Afq
Type 2 (For reference) Settings: None Query: :DATA:CATalog? Response example ALT “ARB_00 ”,“ARB_01 ”,..,“ARB_11 ” Compatibility Information The fixed string <Edit Memory> is returned as the name corresponding to the arbitrary waveform memory number 0. WF1947/WF1948 Instruction Manual (External Control)
Page 227: Amm/?Amm
When setting Type 2 (For reference), "DEFault" is handled as being equivalent to "Vpp". Type 2 (For reference) Settings: [:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:UNIT {VPP|VRMS|DBV|DBM|USER|DEFault} Query: [:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]:UNIT? Setting example Set the unit of amplitude width as dBV. Type 1: AMU 2 Type 2 (For reference):VOLT:UNIT DBV Compatibility Information Compatibility support 6.3.14 AMV/?AMV WF1947/WF1948 Instruction Manual (External Control)
Page 228: App
Response example AAP 1.0000 Compatibility Information Compatibility support If an arbitrary waveform data of WF1947/WF1948 in the control point form is stored in the memory, the command causes an execution error. Only data in array format are supported. 6.3.16 APT/?APT...
Page 229 When setting Type 2 (For reference), "DEFault" is handled as being equivalent to "8KW". Type 2 (For reference) Settings: :DATA:ATTRibute:POINts {8KW|16KW|32KW|64KW|DEFault} Query: :DATA:ATTRibute:POINts? Setting example Set the size of arbitrary waveform data as 8KW. Type 1: APT 0 Type 2 (For reference):DATA:ATTR:POIN 8KW Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 230: Arb
<Example> [1st] ARB “ARB_01”,123,456,789,…………….123,456,789, [2nd] ARB “ARB_01” ,987,654,321,…………….987,654,321, [Final ] The end of data must be data without "," (comma). ARB “ARB_01” ,-123,-456,-789,…………….-123,-456,-789 6.3.18 ARW WF1947/WF1948 Instruction Manual (External Control)
Page 231 Transfer data that binary data is converted into ASCII data list. In addition, to transfer a data list exceeding 1024 bytes, transfer the subsequent waveform data with the identical waveform memory name including the command character string. WF1947/WF1948 Instruction Manual (External Control)
Page 232: Ass
When setting :Type 2 (For reference), "DEFault" is handled as being equivalent to "2". Type 2 (For reference) Settings: [:SOURce]:BM:EXTernal:CHANnel {<channel>|DEFault} Query: [:SOURce]:BM:EXTernal:CHANnel? Setting example Use the TRIG/SWEEP IN of CH 1 as the trigger source of CH 2. WF1947/WF1948 Instruction Manual (External Control)
Page 233: Bes/?Bes
When setting :Type 2 (For reference), "DEFault" is handled as being equivalent to "NEgative". Type 2 (For reference) Settings: [:SOURce]:BM:SLOPe {POSitive|NEGative|DEFault} Query: [:SOURce]:BM:SLOPe? Setting example In case of trigger oscillation, trigger at the falling. Type 1: BES 1 Type 2 (For reference):BM:SLOP NEG Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 234: Bir/?Bir
In case of common channel setting (1 or ON), when setting the command to change frequency or amplitude, it is set as common to both channels. If you set different frequency or amplitude for each channel, set as 0 or OFF once, and then set the frequency and/or amplitude. WF1947/WF1948 Instruction Manual (External Control)
Page 235: Bss/?Bss
-100.00 (-100%) to +100.00 (+100%), Resolution:0.01 (0.01%) Type 2 (For reference) Settings: [:SOURce]:BM:SLEVel {<stop level>|MINimum|MAXimum} Query: [:SOURce]:BM:SLEVel? [MINimum|MAXimum] Setting example Set the stop level as +33.3%. Type 1: BSV 33.3 Type 2 (For reference):BM:SLEV 33.3 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 236: Bty/?Bty
Source channel (1 to 2) Type 2 (For reference) Settings: :CHANnel:DATA:COPY <dst_channel>,<src_channel> Query: None Setting example Copy the setting of CH 1 to CH 2. Type 1: CDC 2,1 Type 2 (For reference):CHAN:DATA:COPY 2,1 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 237: Cha/?Cha (Wf1948)
•CH 2 Overload event status register (WF1948) •CH 2 Warning event status register (WF1948) In addition, cancels the received OPC/?OPC command, and then clears the error queue. Parameters None Type 2 (For reference) Settings: *CLS Query: None Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 238: Cmo/?Cmo (Wf1948)
: ON (Simultaneous setting ON) Type 2 (For reference) Settings: :INSTrument:COUPle {ALL|NONE} Query: :INSTrument:COUPle? Setting example Select "Use simultaneous setting (ON)". Type 1: CPL 1 Type 2 (For reference):INST:COUP ALL Compatibility Information Compatibility support 6.3.32 CTA/?CTA Description WF1947/WF1948 Instruction Manual (External Control)
Page 239: Cte/?Cte
Set the center value of DC offset sweep as 0V/open (It is assumes that the unit of DC offset is V, and LOAD is set as OPEN in advance). Type 1: CTE 0 Type 2 (For reference):VOLT:OFFS:CENT 0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 240: Ctf/?Ctf
The setting range is the same as that of the phase setting (PHS) Type 2 (For reference) Settings: [:SOURce]:PHASe:CENTer {<phase>|MINimum|MAXimum} Query: [:SOURce]:PHASe:CENTer? [MINimum|MAXimum] Setting example Set the center value of phase as 0deg. Type 1: CTP 0 Type 2 (For reference):PHAS:CENT 0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 241: Ctu/?Ctu
0.0000 (0%) 100.0000 (100%) Type 2 (For reference) Settings: [:SOURce]:PWM:DEViation {<peak deviation>|MINimum|MAXimum} Query: [:SOURce]:PWM:DEViation? [MINimum|MAXimum] Setting example Set the pulse width deviation of pulse width modulation as 10%. Type 1: DDV 10 Type 2 (For reference):PWM:DEV 10 WF1947/WF1948 Instruction Manual (External Control)
Page 242: Dfc/?Dfc
Compatibility Information Change the duty setting to 1/2 of that. WF1947/WF1948 treats the peak deviation of 50% as the maximum. For details, see "2. Command Descriptions Descriptions of Individual Commands [:SOURce[1|2]]:PWM[:DEViation]:DCYCle." 6.3.38 DFC/?DFC Description Selects/inquires the modulation waveform of pulse width modulation.
Page 243: Dtt/?Dtt
Description Selects/queries the duty unit. Parameters Duty unit selection (0/1) Type 1 Type 2 (For reference) : PERCent (%) : USER (User-defined unit) Type 2 (For reference), "DEFault" is handled as being equivalent to "PERCent". WF1947/WF1948 Instruction Manual (External Control)
Page 244: Dty/?Dty
Selects/inquires the external addition. Parameters Status selection (0/1) Type 1 Type 2 (For reference) OFF (Set the external addition as OFF) ON (Set the external addition as ON) Type 2 (For reference) Settings: [:SOURce]:EXTernal:ADD:STATe {0|1|OFF|ON} Query: [:SOURce]:EXTernal:ADD:STATe? WF1947/WF1948 Instruction Manual (External Control)
Page 245: Err
Settings: None Query: :SYSTem:ERRor? Response example ERR 0,“No error” Compatibility Information Returns the corresponding error message of WF1947/WF1948. 6.3.45 ESE/?ESE Description Sets the standard event status enable register as write/read. Parameters The mask (allow/disallow) pattern 0 to 255 of the standard event status enable register,...
Page 246: Esr
Query: :CHANnel:DELTa? [MINimum|MAXimum] Setting example Set the frequency difference as 1kHz. Type 1: FDI 1000 Type 2 (For reference):CHAN:DELT 1000 Compatibility Information Compatibility support The maximum value is changed, compared to the old WF194x. (14999999.99999999Hz  29999999.99999999Hz) WF1947/WF1948 Instruction Manual (External Control)
Page 247: Fdv/?Fdv
Type 2 (For reference) Settings: [:SOURce]:FM:INTernal:FUNCtion {SINusoid|TRIangle|SQUare| PRAMp|NRAMp} Query: [:SOURce]:FM:INTernal:FUNCtion? Setting example Changes a modulation waveform of frequency modulation into a sine wave. Type 1: FFC 0 Type 2 (For reference):FM:INT:FUNC SIN Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 248: Ffq/?Ffq
(Duty variable square wave) Type 2 (For reference) Settings: [:SOURce]:FUNCtion:SHAPe {SINusoid|TRIangle|FSQUare| PRAMp|NRAMp|USER|VSQUare} Query: [:SOURce]:FUNCtion:SHAPe? Setting example Set the waveform as triangular wave. Type 1: FNC 2 Type 2 (For reference):FUNC:SHAP TRI Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 249: Fra/?Fra (Wf1948)
Query: [:SOURce]:FREQuency? [MINimum|MAXimum] Setting example Set the frequency as 1MHz. Type 1: FRQ 1E+06 Type 2 (For reference):FREQ 1E+06 Compatibility Information Compatibility support The maximum value is changed, compared to the old WF194x.(15MHz  30MHz) WF1947/WF1948 Instruction Manual (External Control)
Page 250: Fru/?Fru
Type 2 (For reference) Settings: [:SOURce]:FREQuency:STATe {STARt|STOP} Query: None Setting example Sets the output as the stop value in the frequency sweep. Type 1: FSS 0 Type 2 (For reference):FREQ:STAT STOP Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 251: Get
: OFF (a header is not attached) : ON (a header is attached) Type 2 (For reference) Settings: None Query: None Setting example A header is not attached. Type 1: HDR 0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 252: Hiv/?Hiv
Sets the high level to +5V. It is assumed that the high level unit is selected as V, and LOAD is set to OPEN in advance. Type 1: HIV 5 Type 2 (For reference):VOLT:HIGH 5 Compatibility Information Compatibility support The maximum value is changed, compared to the old WF194x.(20V  10V) WF1947/WF1948 Instruction Manual (External Control)
Page 253: Hle/?Hle
When setting with Type 2 (For reference), "DEFault" is handled as being equivalent to "V". Type 2 (For reference) Settings: [:SOURce]:VOLTage[:LEVel][:IMMediate]:HIGH:UNIT {V|USER|DEFault} Query: [:SOURce]:VOLTage[:LEVel][:IMMediate]:HIGH:UNIT? Setting example Sets the high level unit to V. Type 1: HVU 0 Type 2 (For reference):VOLT:HIGH:UNIT V Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 254: Idt
6.3.61 ?IDT Description Reads the device ID. Response format Returns “NF corporation, the model number, the serial number, the version” in the string format. Type 2 (For reference) Settings: None Query: *IDN? Response example IDT “NF Corporation,WF1947,1234567,Ver1.00” Compatibility Information Returns the device information of WF1947/WF1948.
Page 255: Lvu/?Lvu
Settings: :MEMory:STATe:COMMent {1|2|3|4|5|6|7|8|9|10},<comment> Query: :MEMory:STATe:COMMent? {1|2|3|4|5|6|7|8|9|10} Setting example Writes a comment “Comment” to the first setting memory. Type 1: MCO 1,“Comment” Type 2 (For reference):MEM:STAT:COMM 1,“Comment” Query example Sets/queries the comment of the first setting memory. WF1947/WF1948 Instruction Manual (External Control)
Page 256: Mdl
ON (Common to both channels) Type 2 (For reference) Settings: [:SOURce]:MODulation:OCOMmon {0|1|OFF|ON} Query: [:SOURce]:MODulation:OCOMmon? Setting example Makes the start/stop operation common to both channels. Type 1: MDO 1 Type 2 (For reference):MOD:OCOM ON Compatibility Information WF1947/WF1948 Instruction Manual (External Control)
Page 257: Mka/?Mka
Sets the marker value of the DC offset sweep to 0V. It is assumed that the unit of DC offset is V, and LOAD is set to OPEN in advance. Type 1: MKE 0 Type 2 (For reference):VOLT:OFFS:MARK 0 Compatibility Information Compatibility support 6.3.69 MKF/?MKF WF1947/WF1948 Instruction Manual (External Control)
Page 258: Mkp/?Mkp
The setting range is the same as that of the duty setting (DTY) Type 2 (For reference) Settings: [:SOURce]:PULSe:DCYCle:MARKer {<duty cycle>|MINimum|MAXimum} Query: [:SOURce]:PULSe:DCYCle:MARKer? [MINimum|MAXimum] Setting example Set the marker value of duty sweep as 50%. Type 1: MKU 50 Type 2 (For reference):PULS:DCYC:MARK 50 WF1947/WF1948 Instruction Manual (External Control)
Page 259: Mrk/?Mrk
Type 2 (For reference):BM:MARK 10 Compatibility Information The maximum value has been changed from the previous WF194x series. (500000.0 waves  999999.5 waves) It is supported when the auto burst and trigger burst modes are set. WF1947/WF1948 Instruction Manual (External Control)
Page 260: Msk/?Msk
(DC Offset) : DUTY (Duty) Type 2 (For reference) Settings: [:SOURce]:MODulation:TYPE {FREQuency|PHASe|AMPLitude|OFFSet|DUTY} Query: [:SOURce]:MODulation:TYPE? Setting example Sets the modulation type to the phase modulation. Type 1: MTY 1 Type 2 (For reference):MOD:TYPE PHAS Compatibility Information WF1947/WF1948 Instruction Manual (External Control)
Page 261: Oc1
Response format A value (0 to 65535) of CH 1 operation event status register Type 2 (For reference) Settings: None Query: :STATus:OPERation:CH1:CONDition? Response example OC1 0 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 262: Oc2 (Wf1948)
Response format A value (0 to 65535) of CH 2 operation event status register Type 2 (For reference) Settings: None Query: :STATus:OPERation:CH2: CONDition? Response example OC2 0 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 263: Odv/?Odv
Type 2 (For reference):OM:DEV 1 Compatibility Information Change the DC offset deviation setting to 1/2 of that. WF1947/WF1948 treats the DC offset deviation of 10V as the maximum. For details, see "2. Command Descriptions Descriptions of Individual Commands [:SOURce[1|2]]:OFSM[:DEViation]." 6.3.78 OE1/?OE1 Description Sets/queries the CH 1 operation event status enable register.
Page 264: Ofc/?Ofc)
Settings: [:SOURce]:OM:INTernal:FUNCtion {SINusoid|TRIangle|SQUare|PRAMp|NRAMp} Query: [:SOURce]:OM:INTernal:FUNCtion? Setting example Set the modulation waveform of DC offset modulation as rising sawtooth wave. Type 1: OFC 3 Type 2 (For reference):OM:INT:FUNC PRAM Compatibility Information Compatibility support 6.3.81 OFQ/?OFQ Description WF1947/WF1948 Instruction Manual (External Control)
Page 265: Ofs/?Ofs
Sets DC offset to 2.5V/open. It is assumed that the unit of DC offset is V, and LOAD is set to OPEN in advance. Type 1: OFS 2.5 Type 2 (For reference):VOLT:OFFS 2.5 Compatibility Information Compatibility support 6.3.83 OFU/?OFU WF1947/WF1948 Instruction Manual (External Control)
Page 266 "V". Type 2 (For reference) Settings: [:SOURce]:VOLTage[:LEVel][:IMMediate]:OFFSet:UNIT {V|USER|DEFault} Query: [:SOURce]:VOLTage[:LEVel][:IMMediate]:OFFSet:UNIT? Setting example Sets the unit of DC offset to the user-defined unit. Type 1: OFU 1 Type 2 (For reference):VOLT:OFFS:UNIT USER Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 267: Old/?Old
OLD) Type 2 (For reference) Settings: :OUTPut:LOAD:STATe {0|1|OFF|ON} Query: :OUTPut:LOAD:STATe? Setting example Sets/displays the voltage when the load is opened (the LOAD function is off). Type 1: OLS 0 Type 2 (For reference):OUTP:LOAD:STAT OFF WF1947/WF1948 Instruction Manual (External Control)
Page 268: Omo/?Omo
1. The bit is reset at power-on. Parameters None Response format 1 (the response is just 1 without the header) Type 2 (For reference) Settings: *OPC Query: *OPC? Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 269: Org/?Org
Compatibility Information Although any errors do not occur with a command to select the range, it is enable with the auto range setting. In the command, the range hold setting of WF1947/WF1948 is not available. 6.3.89 ?OSC Description Inquire operation event status register.
Page 270: Ose/?Ose
(both bit 0: the CH 1 operation event status register and bit 1: the CH2 operation event status register). Type 1: OSE 3 Type 2 (For reference):STAT:OPER:ENAB 3 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 271: Oss
Type 2 (For reference):PM:DEV 90 Compatibility Information Set the phase deviation setting up to 180.000deg. WF1947/WF1948 treats the phase deviation of 180.000deg as the maximum. For details, see "2. Command Descriptions, Descriptions of Individual Commands, [:SOURce[1|2]]:PM[:DEViation]." WF1947/WF1948 Instruction Manual (External Control)
Page 272: Pfc/?Pfc
Setting example Set the modulation frequency of phase modulation as 100Hz. Type 1: PFQ 100 Type 2 (For reference):PM:INT:FREQ 100 Compatibility Information The maximum value has been changed from the previous WF194x series.(500Hz  1MHz) WF1947/WF1948 Instruction Manual (External Control)
Page 273: Phs/?Phs
When setting with Type 2 (For reference), "DEFault" is handled as being equivalent to "DEG". Type 2 (For reference) Settings: [:SOURce]:PHASe:UNIT {DEG|USER|DEFault} Query: [:SOURce]:PHASe:UNIT? Setting example Sets the unit of the phase to user-defined unit. Type 1: PHU 1 Type 2 (For reference):PHAS:UNIT USER Compatibility Information WF1947/WF1948 Instruction Manual (External Control)
Page 274: Pos/?Pos
Query: [:SOURce]:PULSe:PERiod? [MINimum|MAXimum] Setting example Set the period to 1µs. Type 1: PRD 1E-06 Type 2 (For reference):PULSE:PER 1E-06 Compatibility Information The minimum value has been changed from the previous WF194x series. (66.666666667ns=15MHz  33.333333334ns=30MHz) WF1947/WF1948 Instruction Manual (External Control)
Page 275: Pru/?Pru
1: Clear the status register at power-on Type 2 (For reference) Settings: *PSC {0|1} Query: *PSC? Setting example Clear the status register at power-on. Type 1: PSC 1 Type 2 (For reference): *PSC 1 Compatibility Information WF1947/WF1948 Instruction Manual (External Control)
Page 276: Pss
•CH 2 Overload event status register WF1948 •CH 2 Warning event status register WF1948 Also, the setting status set by the following command changes. AFM, HLE, TRE Parameters None Type 2 (For reference) Settings: :SYSTem:PRESet Query: None Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 277: Puw/?Puw
When setting with Type 2 (For reference), "DEFault" is handled as being equivalent to "SEC". Type 2 (For reference) Settings: [:SOURce]:PULSe:WIDTh:UNIT {SEC|USER|DEFault} Query: [:SOURce]:PULSe:WIDTh:UNIT? Setting example Set the unit of pulse width as s. Type 1: PWU 0 Type 2 (For reference):PULS:WIDT SEC Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 278: Rcl
When the RST command is executed, the output is set to off. 6.3.107 SEC/?SEC (WF1948) Description Selects/queries the external trigger channel of CH 2 while the single sweep and gated sweep. Parameters Channel number (1 to 2) WF1947/WF1948 Instruction Manual (External Control)
Page 279: Ses/?Ses
Compatibility support 6.3.109 SFC/?SFC Description Selects/queries the sweep function. Parameters Select (0 to 1) Sweep function Type 1 Type 2 (For reference) : TRIangle (triangular waveform sweep) : RAMP (ramp waveform sweep) Type 2 (For reference) WF1947/WF1948 Instruction Manual (External Control)
Page 280: Sgs/?Sgs
Selection and query of the rectangular and sine waveform sweep in WF194x series are not supported. Consider other approach. Followings are commands in WF1947/WF1948 that are available for the sweep. [Sweep function ] Modulation: specify a sweep function for corresponding each oscillation mode of FSK, PSK, FM, PM, AM, and AM(DSB-SC).
Page 281: Sig/?Sig
The resolution less than 1ms has been changed from the previous WF194x series. ( 1µs  0.1µs ) 6.3.113 SLS/?SLS Description Selects/queries the stop level to stop oscillation for the gated sweep. For the duty sweep, this command is disabled. WF1947/WF1948 Instruction Manual (External Control)
Page 282: Slv/?Slv
Selects/queries the sweep mode. Parameters Selects sweep mode (0 to 2) Type 1 Type 2 (For reference) : SINGle (single sweep) : CONTinuous (continuous sweep) : GATed (gated sweep) Type 2 (For reference) Settings: [:SOURce]:SWEep:MODE {SINGle|CONTinuous|GATed} WF1947/WF1948 Instruction Manual (External Control)
Page 283: Sna/?Sna
DC offset span (the range changes based on the unit and the LOAD settings) When the range is 10 V, the load is open, the unit is V: 0 (0 V) 20 (20 V) Type 2 (For reference) Settings: [:SOURce]:VOLTage[:LEVel][:IMMediate]:OFFSet:SPAN {<offset>|MINimum|MAXimum} Query: [:SOURce]:VOLTage[:LEVel][:IMMediate]:OFFSet:SPAN? [MINimum|MAXimum] Setting example WF1947/WF1948 Instruction Manual (External Control)
Page 284: Snf/?Snf
Type 2 (For reference) Settings: [:SOURce]:PHASe:SPAN {<phase>|MINimum|MAXimum} Query: [:SOURce]:PHASe:SPAN? [MINimum|MAXimum] Setting example Sets the span value for the phase sweep to 180 deg. Type 1: SNP 180 Type 2 (For reference):PHAS:SPAN 180 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 285: Snu/?Snu
Sets the stop value for the amplitude sweep to 10 Vp-p/open. It is assumed that the amplitude unit is Vp-p, and LOAD is set to OPEN in advance. Type 1: SPA 10 Type 2 (For reference):VOLT:STOP 10 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 286: Spc/?Spc
Sets the stop value of the DC offset sweep to +10V. It is assumed that the unit of DC offset is V, and LOAD is set to OPEN in advance. Type 1: SPE 10 Type 2 (For reference):VOLT:OFFS:STOP 10 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 287: Spf/?Spf
Type 2 (For reference) Settings: [:SOURce]:PHASe:STOP {<phase>|MINimum|MAXimum} Query: [:SOURce]:PHASe:STOP? [MINimum|MAXimum] Setting example Sets the stop value for the phase sweep to +90deg. Type 1: SPP +90 Type 2 (For reference):PHAS:STOP +90 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 288: Spu/?Spu
: LOGarithmic (Log sweep) Type 2 (For reference) Settings: [:SOURce]:SWEep:SPACing {LINear|LOGarithmic} Query: [:SOURce]:SWEep:SPACing? Setting example Sets the sweep function to the log sweep. Type 1: SSC 1 Type 2 (For reference):SWE:SPAC LOG Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 289: Sta/?Sta
Sets the start value of the DC offset sweep to -10V. It is assumed that the unit of DC offset is V, and LOAD is set to OPEN in advance. Type 1: STE -10 Type 2 (For reference):VOLT:OFFS:STAR –10 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 290: Stf/?Stf
Sweep time setting: 1E-3 (1ms) 10E3 (10000s) Resolution: 1E-3 (1ms) Type 2 (For reference) Settings: [:SOURce]:SWEep:TIME {<seconds>|MINimum|MAXimum} Query: [:SOURce]:SWEep:TIME? Setting example Sets the sweep time to 0.5s. Type 1: STM 0.5 Type 2 (For reference):SWE:TIME 0.5 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 291: Sto
Type 2 (For reference) Settings: [:SOURce]:PHASe:STARt {<phase>|MINimum|MAXimum} Query: [:SOURce]:PHASe:STARt? [MINimum|MAXimum] Setting example Sets the start value for the phase sweep to -90deg. Type 1: STP -90 Type 2 (For reference):PHAS:STAR -90 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 292: Sts
32KW → 0~32767, 64KW → 0~65535 Type 2 (For reference) Settings: :DATA:DAC:ADDRess [<start address>] Query: :DATA:DAC:ADDRess? Setting example Transfers the arbitrary waveform data from the address 2048. Type 1: STT 2048 Type 2 (For reference):DATA:DAC:ADDR 2048 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 293: Stu/?Stu
Compatibility support 6.3.138 SWO/?SWO (WF1948) Description Sets/inquires whether to operate start/stop/pause of sweep from the panel key and the external control separately for each channel, or common to both channels. Parameters Operation status selection (0/1) WF1947/WF1948 Instruction Manual (External Control)
Page 294: Syn
If you set different frequency or amplitude for each channel, set as 0 or OFF once, and then set the frequency and/or amplitude. 6.3.139 SYN Description Performs the phase synchronization. Parameters None Type 2 (For reference) Settings: :OUTPut:PSYNc Query: None Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 295: Syt/?Syt
Selection/query of SYNC OUT for the modulation of FSK, PSK, and AMSC is not supported. To Select/query SYNC OUT for the modulation of FSK, PSK, and AMSC, the command needs to be replaced with the WF1947/WF1948 command. [SYNC OUT] Modulation...
Page 296: Trd/?Trd
Type 1: TRE 1 Type 2 (For reference):TRIG:EIN:STAT ON Compatibility Information It is not support oscillation mode except for the sweep and burst. A trigger source of the SWEEP IN connector signal is not supported. WF1947/WF1948 Instruction Manual (External Control)
Page 297: Trg/?Trg
Type 2 (For reference):TRIG:SOUR STOP Note While executing the sweep or the modulation, when the oscillation mode is changed on the other channel, the sweep/modulation is aborted. Compatibility Information The gate oscillation is not supported. WF1947/WF1948 Instruction Manual (External Control)
Page 298: Trs/?Trs
Type 2 (For reference) Settings: None Query: *TST? Response example TST 0 Compatibility Information In previous WF194x, the memory was saved through the battery backup. In WF1947/WF1948, the memory is saved by the non-volatile memory. WF1947/WF1948 Instruction Manual (External Control)
Page 299: Uau/?Uau
The name of the amplitude user-defined unit is "km/h". LOG is not used. The scale is 10. The offset is set to 0. Type 1: UAU “km/h”,0,10,0 Type 2 (For reference):VOLT:USER “km/h”,NONE,10,0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 300: Udu/?Udu
The name of the duty user-defined unit is "INTN". LOG is not used. The scale is 100. The offset is set to 0. Type 1: UDU “INTN”,0,100,0 Type 2 (For reference):PULS:DCYC:USER “INTN”,NONE,100,0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 301: Ufu/?Ufu
The name of the frequency user-defined unit is "rpm". LOG is not used. The scale is 60. The offset is set to 0. Type 1: UFU “rpm”,0,60,0 Type 2 (For reference):FREQ:USER “rpm”,NONE,60,0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 302: Uhu/?Uhu
The name of the phase unit is "W". LOG is not used. The scale is 3.141592654. The offset is set to 0. Type 1: UHU “W”,0,3.141592654,0 Type 2 (For reference):PHAS:USER “W”,NONE,3.141592654,0 Note When LOG is used, negative values cannot be set as the phase. Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 303: Uou/?Uou
The name of the DC offset unit is "kgf". LOG is not used. The scale is 9.8. The offset is set to 0. Type 1: UOU “kgf”,0,9.8,0 Type 2 (For reference):VOLT:OFFS:USER “kgf”,NONE,9.8,0 Note When LOG is used, negative values cannot be set as the phase. Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 304: Upu/?Upu
The name of the period user-defined unit is "PW". LOG is not used. The scale is 1/2. The offset is set to 0. Type 1: UPU “PW”,0,0.5,0 Type 2 (For reference):PULS:PER:USER “PW”,NONE,0.5,0 Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 305: Uss
When over occurs, Bit0 is set. When overload disappears, Bit0 is cleared. Response format CH 1 Overload event status register value (0 to 65535) Type 2 (For reference) Settings: None Query: STATus:OVERload:CH1:CONDition? Response example VC1 0 ☞ See "3. Status System." WF1947/WF1948 Instruction Manual (External Control)
Page 306: Vc2 (Wf1948)
☞ See "3. Status System." Compatibility Information It is not supported. It is necessary to replace with the corresponding command of WF1947/WF1948. Questionable data status event register related command :STATus:QUEStionable:CONDition? :STATus:QUEStionable:ENABle :STATus:QUEStionable[:EVENt]?] For details, see "3. Status System." WF1947/WF1948 Instruction Manual (External Control)
Page 307: Ve1/?Ve1
Type 2 (For reference) Settings: :STATus:OVERload:CH2:ENABle <Value> Query: :STATus:OVERload:CH2:ENABle? Setting example Sets the CH2 overload event status enable register to 1 (CH2 overload). Type 1: VE2 1 Type 2 (For reference):STAT:OVER:CH2:ENAB 1 ☞ See "3. Status System." WF1947/WF1948 Instruction Manual (External Control)
Page 308: Ver
•The PST(:SYSTem:PRESet) command is executed Response format The value of the overload event status register (0 to 65535) Type 2 (For reference) Settings: None Query: STATus:OVERload: CONDition? Response example VSC 0 ☞ See "3. Status System." WF1947/WF1948 Instruction Manual (External Control)
Page 309: Vse/?Vse
☞ See "3. Status System." Compatibility Information It is not supported. It is necessary to replace with the corresponding command of WF1947/WF1948. Questionable data status event register related command :STATus:QUEStionable:CONDition? :STATus:QUEStionable:ENABle :STATus:QUEStionable[:EVENt]?] For details, see "3. Status System." WF1947/WF1948 Instruction Manual (External Control)
Page 310: Wai
Response format The value of the CH1 warning event status register (0 to 65535) Type 2 (For reference) Settings: None Query: STATus:WARNing:CH1:CONDition? Response example WC1 0 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 311: Wc2 (Wf1948)
Query: :STATus:WARNing:CH1:ENABle? Setting example Sets the CH1 warning event status enable register to 16 (bit 4:unit forced change). Type 1: WE1 16 Type 2 (For reference):STAT:WARN:CH1:ENAB 16 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 312: We2/?We2 (Wf1948)
•The PST(:SYSTem:PRESet) command is executed Response format The value of the warning event status register (0 to 65535) Type 2 (For reference) Settings: None Query: STATus:WARNing:CONDition? Response example WSC 0 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 313: Wse/?Wse
Sets the warning event status enable register to 3 (both bit 0: CH1 warning event status register and bit 1: CH 2 warning event status register). Type 1: WSE 3 Type 2 (For reference):STAT:WARN:ENAB 3 ☞ See "3. Status System." Compatibility Information Compatibility support WF1947/WF1948 Instruction Manual (External Control)
Page 314 Should you notice anything suspicious, error, or erroneous omission, please contact us or our agent from whom you purchased the product. Multifunction Generator WF1947/WF1948 Instruction Manual (External Control) NF Corporation 6-3-20 Tsunashima Higashi, Kohoku-ku, Yokohama 223-8508, Japan Phone: +81-45-545-8128 ( Main ) http://www.nfcorp.co.jp/ Copyright 2012-2014, NF Corporation ◯...
Page 316 NF Corporation http://www.nfcorp.co.jp/ 6-3-20 Tsunashima Higashi, Kohoku-ku, Yokohama 223-8508, Japan +81-45-545-8128 Phone: (Main)

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NF WF1947 Instruction Manual

1 Preparations before Use

2 Command Descriptions

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