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Performing Measurement Tasks - Programming Examples

R&S

NRPxxA(N)

132

User Manual 1177.6017.02 ─ 05

// All 17 physical measurement have been executed.
// That means, buffer is full and can be read
SENSOR.query( "FETCH?", szBuf, sizeof( szBuf ) );
printf( szBuf );
}

Performing a Buffered Continuous Average Measurement

Содержание NRP18A

Страница 1: ...R S NRPxxA N Average Power Sensors User Manual User Manual Version 05 1177601702 A2...

Страница 2: ...en Germany Phone 49 89 41 29 0 Fax 49 89 41 29 12 164 Email info rohde schwarz com Internet www rohde schwarz com Subject to change Data without tolerance limits is not binding R S is a registered tra...

Страница 3: ...ographical Conventions 11 2 Key Features 12 3 Preparing for Use 13 3 1 Unpacking and Checking the Power Sensor 13 3 2 Operating Conditions 13 3 3 Important Aspects for Test Setup 13 3 4 Connecting to...

Страница 4: ...Remote Control 34 5 4 R S NRPV 34 5 5 R S Power Viewer 36 5 6 R S Power Viewer Mobile 39 5 7 R S NRX 39 5 8 R S NRP2 40 6 Browser Based User Interface 43 6 1 Main Dialog of the Web User Interface 43...

Страница 5: ...5 Controlling the Measurement 71 9 5 1 Starting and Ending a Measurement 71 9 5 2 Triggering 72 9 5 2 1 Trigger States 73 9 5 2 2 Waiting for a Trigger Event 73 9 5 2 3 Trigger Sources 73 9 5 2 4 Dro...

Страница 6: ...lling the ENABle Part 126 9 12 5 Controlling the Negative Transition Part 126 9 12 6 Controlling the Positive Transition Part 127 10 Performing Measurement Tasks Programming Examples 128 10 1 Performi...

Страница 7: ...ionable Power Status Register 150 11 3 6 2 Questionable Calibration Status Register 150 11 3 7 Standard Event Status and Enable Register ESR ESE 151 11 3 8 Operation Status Register 152 11 3 8 1 Opera...

Страница 8: ...Contents R S NRPxxA N 8 User Manual 1177 6017 02 05...

Страница 9: ...re grouped according to subjects For example one subject is electrical safety The Basic Safety Instructions are delivered with the R S NRPxxA N in different languages in print Throughout the documenta...

Страница 10: ...1 2 6 Data Sheets and Brochures The data sheet contains the technical specifications of the R S NRPxxA N It also lists the firmware applications and their order numbers and optional accessories The b...

Страница 11: ...boxes menus options buttons and softkeys are enclosed by quotation marks Keys Key and knob names are enclosed by square brackets Filenames commands program code Filenames commands coding samples and s...

Страница 12: ...s are available with an additional Gigabit Ethernet interface with Power over Ethernet PoE power supply The power sensors with networking capabili ties the R S NRP LAN power sensors are marked with a...

Страница 13: ...d to ensure accurate measurements and to avoid damage to the power sensor and connected devices Before switching on the power sensor observe the information on appropriate operating conditions provide...

Страница 14: ...ing limit can damage the sen sor head To avoid this risk make sure not to exceed the test limit The test limits specified on the type label are valid only for the supplied attenuator For operation wit...

Страница 15: ...he connection using one of the following interfaces Host interface LAN interface if the power sensor is a LAN power sensor Contents Setting Up a USB Connection 15 Setting Up a LAN Connection 18 3 5 1...

Страница 16: ...for Use on page 13 1 Connect the cables as shown in Figure 3 1 a Connect the R S NRP ZKU cable to the power sensor b Connect the R S NRP ZKU cable to the computer c Connect the power sensor to the si...

Страница 17: ...with USB host interface 7 8 BNC cable optional not supplied 9 Trigger source optional 10 Triggered device optional 11 14 R S NRP ZK6 cable 15 Host interface connector 16 R S NRPxxA N power sensor 17 S...

Страница 18: ...o the trigger device optional 2 On the computer start a software application to view the measurement results See Chapter 5 Operating Concepts on page 29 3 5 2 Setting Up a LAN Connection Requires powe...

Страница 19: ...orting PoE power delivery e g R S NRP ZAP1 7 Computer 1 Connect the RF connector of the sensor to the DUT 2 NOTICE Risk of sensor damage Use only PoE power sourcing equipment PSE according to IEEE sta...

Страница 20: ...PoE Ethernet switch 10 Computer 1 Connect the RF connector of the sensor to the DUT 2 NOTICE Risk of sensor damage Use only PoE power sourcing equipment PSE according to IEEE standards 802 3af or IEEE...

Страница 21: ...at Otherwise your power sensor can get damaged Connect the RJ 45 Ethernet connector of the sensor to the output of the PoE injec tor 3 Connect the PoE injector to a power supply 4 Connect the computer...

Страница 22: ...r sensor 3 Check that the remaining main network adapter has been assigned an IP address starting with 169 254 The IANA Internet assigned numbers authority has reserved the range 169 254 0 0 to 169 25...

Страница 23: ...wer sensor try the default hostname as well as the hostname extended with local as shown in the example below All communica tion for resolving names in the top level domain TLD local are defined to be...

Страница 24: ...ctively if a network or a point to point connection is used 3 6 Connecting to a USB Host For connecting the power sensor to a USB host use the host interface of the power sensor For details see Chapte...

Страница 25: ...or see Chapter 4 1 RF Connector on page 25 2 Trigger I O connector see Chapter 4 2 Trigger I O Connector on page 26 3 Host interface connector see Chapter 4 3 Host Interface on page 26 4 Status LED se...

Страница 26: ...a connection between the power sensors and a USB host or a supported Rohde Schwarz instrument For this pur pose an external cable is needed Two types of cables are available R S NRP ZKU cable with a...

Страница 27: ...nnector is used to connect the Ethernet interface of the power sensors to a Local Area Network LAN Ethernet interface requires PoE Power over Ethernet When using the Ethernet interface of the power se...

Страница 28: ...power sensor The network status LED shows whether the LAN connection to the network is estab lished properly or not Color State Green The power sensor is correctly connected to the network It has bee...

Страница 29: ...power sensors The components of the R S NRP Toolkit depend on the operating system 5 1 1 Versions and Downloads The R S NRP Toolkit is available for the Microsoft Windows operating systems listed unde...

Страница 30: ...the release notes available at www rohde schwarz com software nrp tool kit Installing on a computer 1 Start the R S NRP Toolkit installer on the Windows based computer In the NRP Toolkit Setup dialog...

Страница 31: ...ishing a LAN connection with an R S NRP LAN power sensor The tool provides the following functions Configuring the network settings by temporary connecting the selected sensor to the computer using US...

Страница 32: ...ser Interface Requires a power sensor with networking capabilities a R S NRP LAN power sensor With the integrated browser based graphical user interface of the LAN power sensor you can easily configur...

Страница 33: ...S NRPxxA N power sensors can damage the power sensors or lead to erroneous results Ensure that you connect disconnect your power sensor as described in Chapter 3 Preparing for Use on page 13 Starting...

Страница 34: ...y The change to remote control occurs on the fly and has no influence on the manual operation Further information Chapter 9 Remote Control Commands on page 63 Chapter 11 Remote Control Basics on page...

Страница 35: ...interface connector 4 R S NRP ZKU cable 5 USB connector 6 Computer with installed R S NRPV Incorrectly connecting disconnecting the R S NRPxxA N power sensors can damage the power sensors or lead to e...

Страница 36: ...easure Continuous The Continuous measurement window appears It shows the measurement results numerically and the control panel for accessing further dialogs with param eters for measurement evaluation...

Страница 37: ...For details see Chapter 5 6 R S Power Viewer Mobile on page 39 Setup Figure 5 3 Setup with the R S Power Viewer 1 Signal source 2 R S NRPxxA N power sensor 3 Host interface connector 4 R S NRP ZKU cab...

Страница 38: ...average measurement select Measurement Continuous The Continuous measurement window appears It shows the measurement results numerically and some parameters that can be configured 6 To start the measu...

Страница 39: ...the R S NRX uses all sensor dependent measurement functions and displays the results Thus you can configure both the measurement and the power sensor Required equipment R S NRPxxA N power sensor R S...

Страница 40: ...In the Measurement Settings dialog select the Measurement Type for example Continuous Average b Tap Quick Setup Auto Set 4 Switch on the signal source The measurement starts and the result is display...

Страница 41: ...r as described in Chapter 3 Preparing for Use on page 13 Starting a measurement 1 Connect the cables as shown in Figure 5 5 a Connect the R S NRP ZK6 cable to the host interface connector of the senso...

Страница 42: ...opriate softkey to select a specific sen sor for zeroing 4 Press the FREQ hardkey and enter the carrier frequency of the applied signal if the specified measurement accuracy is to be reached 5 Switch...

Страница 43: ...1 Explanation of the web user interface 1 Title bar 2 Common settings see Chapter 6 3 Common Settings on page 45 3 Parameters pane 4 Result pane 5 Navigation pane Measurements see Chapter 6 4 Measure...

Страница 44: ...ions are available Unit Keyboard key Decibel d Hertz h Second s Volt v Watt w Unit multiples Keyboard key Giga g Mega m Kilo k milli m micro u nano n Example To set the unit to 1 GHz enter 1g For cert...

Страница 45: ...odes Access main dialog of the web user interface top pane System Status 45 Measurement 45 Frequency 45 Offset 45 State 46 Value 46 S Parameter 46 Averaging 46 System Status Displayed in the title bar...

Страница 46: ...ctional coupler connected ahead of the sensor Averaging See Averaging Mode on page 50 6 4 Measurement Modes Describes the parameters for the available measurement modes Continuous Average Mode 46 6 4...

Страница 47: ...lowpass filter The filter reduces result fluctuations caused by modulation Remote command SENSe Sensor POWer AVG SMOothing STATe on page 90 6 5 Settings Describes the parameters for general sensor co...

Страница 48: ...a Corrections on page 98 State Correction Enables or disables the use of the complex reflection coefficient of the signal source source Remote command SENSe Sensor SGAMma CORRection STATe on page 99 M...

Страница 49: ...causes an error Remote command CALibration Channel ZERO AUTO on page 110 Diagnostics Triggers a selftest of the sensor Note Do not apply a signal to the sensor while the selftest is running If the se...

Страница 50: ...aging mode manual Disables auto averaging Enter the average count under Value on page 50 auto 1 dB auto 0 1 dB auto 0 01 dB auto 0 001 dB Uses an automatic averaging filter with the respective resolut...

Страница 51: ...that a measurement result is not output until the entire mea surement has been completed This means that the number of mea surement cycle repetitions is equal to the set averaging factor If the avera...

Страница 52: ...e Trigger Source Sets the polarity of the active slope of the trigger signal that is externally or internally applied Positive The rising edge of the trigger signal is used for triggering Negative The...

Страница 53: ...ff on page 80 Hysteresis Sets the hysteresis in dB A trigger event occurs if the trigger level Falls below the set value on a rising slope Rises above the set value on a falling slope Thus you can use...

Страница 54: ...router is on the same network as the instrument Remote command SYSTem COMMunicate NETWork IPADdress GATeway on page 114 DHCP Selects the mode for assigning the IP address Auto Assigns the IP address a...

Страница 55: ...re update For further information see Chapter 7 2 2 Using the Web User Interface on page 59 Alternatively you can the Firmware Update for NRP Family program See Chap ter 7 2 1 Using the Firmware Updat...

Страница 56: ...ail able at www rohde schwarz com en firmware nrp_a_an If the rsu file is packed in a zip archive extract it before updating If you use the Firmware Update for NRP Family program further requirements...

Страница 57: ...not interrupted 1 Check the prerequisites see Checking the prerequisites on page 57 2 Connect the power sensor to the computer as described in Chapter 3 5 Connect ing to a Computer on page 15 3 Start...

Страница 58: ...ending on the sensor model and the size of the selected file 8 Check if the update was successful The firmware version in the Identification field must match the version you selected in the Firmware f...

Страница 59: ...stem 4 Click Firmware Update 5 In the Firmware Update dialog click Select RSU file 6 In the file browser select the rsu file for upload The selected rsu is displayed for example NRPxAN_17 11 27 03 rsu...

Страница 60: ...FWUPdate on page 117 The size of the file is 10242884 This number has 8 digits Thus the block_data consist of the following 8 How many digits follow to specify the file size 10242884 Number that spec...

Страница 61: ...st firmware version 8 1 Most Important Differences The new and the old sensors are compatible as far as possible However there are some differences The state of the sensors is indicated by an LED see...

Страница 62: ...erequisites R S NRPV See the release notes and the manual of the R S NRPV R S Power Viewer See the release notes and the manual of the R S Power Viewer R S NRP2 Install firmware version 7 11 or higher...

Страница 63: ...r setting are indicated as Setting parameters Parameters required only to refine a query are indicated as Query parameters Parameters that are only returned as the result of a query are indicated as R...

Страница 64: ...the SCPI standard Some com mands are considerably shortened by these optional mnemonics Therefore not only is there a short and a long form for the commands distinguished here by uppercase and lowerc...

Страница 65: ...rameters in braces may be included in the command once several times or not at all 9 3 Common Commands The common commands are taken from the IEEE 488 2 IEC 625 2 standard The headers of these command...

Страница 66: ...the version number of the installed firmware is indicated Usage Query only IST Individual STatus query Returns the current value of the IST flag in decimal form The IST flag is the status bit which is...

Страница 67: ...ted list of installed options Usage Query only PRE register Parallel poll Register Enable Sets the parallel poll enable register to the specified value or queries the current value Parameters register...

Страница 68: ...ch conditions a service request is triggered Parameters register Range 0 to 255 RST 0 STB STatus Byte query Returns the contents of the status byte in decimal form Usage Query only TRG TRiGger Trigger...

Страница 69: ...rement Path 69 Selecting a Measurement Mode 70 9 4 1 Selecting the Reference Source The ROSCillator subsystem contains commands for configuring the reference source SENSe Sensor ROSCillator SOURce sou...

Страница 70: ...RST ON Manual operation See Range on page 48 SENSe Sensor RANGe CLEVel level Reduces the transition range between the measurement paths 0 1 and 1 2 by the set value Thus you can improve the measuremen...

Страница 71: ...ant to start a single measurement cycle or a sequence of measurement cycles Do you want to output each new average value as a measurement result or do you want to bundle more measured values into one...

Страница 72: ...measurement mode In continuous measurement mode the power sensor does not go into the idle state after a measurement has been completed but immediately executes another measurement cycle See also Cha...

Страница 73: ...rig ger state Depending on the required number of measurement cycles you use one of the following commands INITiate CONTinuous A new measurement cycle is started automatically after the previous one h...

Страница 74: ...gnificance of the dropout time The RF power between the slots is below the threshold defined by the trigger level and the trigger hysteresis Therefore the trigger hysteresis alone cannot prevent trigg...

Страница 75: ...ement time can be very long Useful if you expect slow changes in the results and you want to avoid outputting redundant data Moving termination control Outputs intermediate values to facilitate early...

Страница 76: ...nt Due to the chopper phases one measurement lasts twice the defined aperture time As defined by the average count after 4 measurements the result is averaged and available During the whole mea sureme...

Страница 77: ...ents when the average count is reached settled data are available When the trigger count is reached TRIGger COUNt on page 79 the power sensor returns to the idle state 8 6 3 4 5 2 7 1 6 6 7 1 Start of...

Страница 78: ...ment Parameters delay Range 0 1 to 5 0 RST 0 3 Default unit Seconds TRIGger ATRigger EXECuted Queries the number of measurements that were triggered automatically since TRIGger ATRigger STATe was set...

Страница 79: ...ter 10 3 Performing a Buffered Continuous Average Measurement on page 130 TRIGger DELay delay Sets the delay between the trigger event and the beginning of the actual measurement integration Parameter...

Страница 80: ...HIGH LOW HIGH 10 k LOW 50 k RST HIGH TRIGger HOLDoff holdoff Sets the hold off time seeChapter 9 5 2 5 Hold Off Time on page 74 Parameters holdoff Range 0 00 to 10 00 RST 0 00 Default unit Seconds Man...

Страница 81: ...obal offset in front of the sensor is considered the currently effective trigger threshold and a trig ger threshold to be input are referenced to the appropriately shifted sensor data If the S paramet...

Страница 82: ...ger MASTer PORT Typically the trigger master uses its internal trigger source But you can also trigger the trigger master externally because the power sensor has got two external trigger con nectors I...

Страница 83: ...xternal trigger bus as long as the sensor remains in the mea surement state Thus ensures that a new measurement is only started after all sen sors have completed their measurements Make sure that the...

Страница 84: ...of bytes in 32 bit or 64 bit binary data Parameters border NORMal SWAPped NORMal The 1st byte is the least significant byte the 4th 8th byte the most significant byte Fulfills the Little Endian littl...

Страница 85: ...ata length ASCii 0 to 12 ASCii List of comma separated readable values 0 to 12 Defines the number of decimal places The reset value 0 does not restrict the number of decimal pla ces Example for ASCii...

Страница 86: ...FETCh Sensor SCALar POWer AVG command sends use the CALCulate FEED command before the measurement is ini tiated Depending on the measurement mode the following settings are possible SENS FUNC Possibl...

Страница 87: ...ated signals When measuring modulated signals in continuous average mode the measurement can show fluctuation due to the modulation If that is the case adapt the size of the sampling window exactly to...

Страница 88: ...pter 10 2 Performing the Fastest Measure ment in Continuous Average Mode on page 128 Remote commands SENSe Sensor POWer AVG APERture 88 SENSe Sensor POWer AVG BUFFer CLEar 88 SENSe Sensor POWer AVG BU...

Страница 89: ...ry only SENSe Sensor POWer AVG BUFFer SIZE count Sets the size of the result buffer in continuous average mode You can enable the buffer using SENSe Sensor POWer AVG BUFFer STATe Parameters count Rang...

Страница 90: ...lation period the filter reduces result fluctuations caused by modulation Parameters state ON OFF RST OFF Example SMO STAT OFF Manual operation See Smoothing on page 47 9 8 Configuring Basic Measureme...

Страница 91: ...e mode for determining the average count Parameters state ON Auto averaging the averaging factor is continuously determined and set depending on the level of power and other parameters OFF Fixed filte...

Страница 92: ...n Defines the number of significant places for linear units and the number of decimal pla ces for logarithmic units which should be free of noise in the measurement result The setting is only taken in...

Страница 93: ...mode Defines how the measurement results are output This is called termination control See also Chapter 9 5 Controlling the Measurement on page 71 Parameters mode MOVing REPeat MOVing Outputs intermed...

Страница 94: ...asurement result The center frequency is set for broadband signals e g spread spectrum signals multi carrier signals Parameters frequency Range 0 0 to 110 0e9 RST 50 0e6 Default unit Frequency Example...

Страница 95: ...rs state RST OFF Manual operation See Duty Cycle on page 47 9 8 3 2 Offset Corrections The offset accounts for external losses by adding a fixed level offset in dB The attenuation of an attenuator loc...

Страница 96: ...allow compensating for the influence of any 2 port device between the signal source and the sensor input As a result the firmware can calculate the power that the signal source actually delivers Examp...

Страница 97: ...s match the used hardware configuration NRP 3 Path Diode Power Sensor MHz to GHz 100 pW to 200 mW 70 dBm to 23 dBm SMART SENSOR TECHNOLOGY Figure 9 2 Operation with 2 port device between signal source...

Страница 98: ...GNitude SENSe Sensor SGAMma PHASe The complex reflection coefficient sensor of the sensor which is also required for the correction is prestored in the calibration data memory for many frequencies Sen...

Страница 99: ...or disables the use of the complex reflection coefficient to correct the interac tions of power sensor and signal source Parameters state RST OFF Manual operation See State on page 48 SENSe Sensor SG...

Страница 100: ...ters tool is part of the R S NRP Toolkit see Chapter 5 1 R S NRP Toolkit on page 29 To start the S Parameters tool In the Windows start menu select NRP Toolkit S Parameter Update Multi User Interface...

Страница 101: ...data directly from or to the sensor see To load a calibration data set from a power sensor on page 104 To save the calibration data to the sensor on page 107 Device Menu bar Provides functions for ed...

Страница 102: ...9 6 Example Global Flags Groups the settings for the power sensor behavior regarding S parameter corrections S Parameter Correction ON by Default Global Flags If this option is enabled the S paramete...

Страница 103: ...upports two different calibration data sets Factory calibration data set containing all factory calibration data User calibration data set that contains the S parameter devices you have loaded Note Af...

Страница 104: ...ect Sensor Load Calibration Data The Upload Calibration Data dialog opens It shows a list of the available sen sors 3 If you cannot find your power sensor in the list for example because of reconnect...

Страница 105: ...re you can select the location to save the calibration data To change the S parameter data 1 In the device table double click an entry See also Device table on page 103 2 Select File Import S2P 3 Sele...

Страница 106: ...sensor itself and the minimum attenuation of the S parameter device If the Upper Power Limit W entry is higher than the power dissipation rating of the attenuator reduce it accordingly 6 Click OK to...

Страница 107: ...e data to the power sensor a confirmation message is displayed The sensor can be used with the new S parameter data S2P Measurement Data Files S2P files are human readable text files that contain head...

Страница 108: ...ement frequencies The measurement frequencies are listed in ascending order and are specified as follows fi s11 fi s21 fi s12 fi s22 fi where fi is the i th frequency and sjk fi is the display format...

Страница 109: ...ws As extended absolute uncertainty k 2 for the magnitude of reflection parameters s11 and s22 As extended uncertainties k 2 in dB for the magnitude of transmission parameters s21 and s12 Comments Any...

Страница 110: ...use this information to deter mine the capacity of the buffer memory required Example CAL DATA LENG Query 57392 Response Usage Query only CALibration USER DATA caldata Accesses the user calibration da...

Страница 111: ...veral seconds SYST SERR Query 240 Response Warning Zero Calibration failed Results Degrading Manual operation See Zero Calibration on page 49 9 10 Testing the Power Sensor The selftest allows a test o...

Страница 112: ...4 SYSTem COMMunicate NETWork IPADdress INFO 115 SYSTem COMMunicate NETWork IPADdress MODE 115 SYSTem COMMunicate NETWork IPADdress SUBNet MASK 115 SYSTem DFPRint Channel 115 SYSTem ERRor ALL 116 SYSTe...

Страница 113: ...e LAN network settings to the default values Usage Event SYSTem COMMunicate NETWork STATus Effective only for the R S NRP LAN power sensors Queries the network configuration state Example SYST COMM NE...

Страница 114: ...efault hostname to avoid prob lems with the network connection However if you change the hostname be sure to use a unique name Parameters hostname Example SYST COMM NETW COMM HOST powersensor 2nd floo...

Страница 115: ...he IP address automatically provided the network sup ports DHCP STATic Enables assigning the IP address manually RST AUTO Example SYST COMM NETW IPAD MODE AUTO The IP address is assigned automatically...

Страница 116: ...by the SCPI standard Example SYST ERR ALL Query 0 No error Response Usage Query only SYSTem ERRor CODE ALL Queries all unread entries in the error event queue and removes them from the queue Only the...

Страница 117: ...s new operating firmware into the power sensor Rohde Schwarz provides the update file For further details see Chapter 7 Firmware Update on page 56 If you want to integrate a firmware update function i...

Страница 118: ...em block_data Usage Query only SYSTem HELP SYNTax Item Queries the relevant parameter information for the specified SCPI command Query parameters Item Example SYST HELP SYNT sens aver coun Usage Query...

Страница 119: ...ress Domain Subnetmask Gateway Mode Status Sensor Name Technology Function MinPower MaxPower MinFreq MaxFreq Resolution Impedance Coupling Uptime Cal Misc Cal Abs Cal Refl Cal Temp Cal Lin Cal S Para...

Страница 120: ...r and the flash code of the system status LED if the operating mode of the LED is set to USER SYSTem LED MODE Parameters color Hexadecimal code described as 0x0krrggbb with k 0 steady on k 1 slowly fl...

Страница 121: ...for the result display near the lower measurement limit Usage Query only SYSTem PARameters Lists all commands with default values limits and ranges Usage Query only SYSTem PARameters DELTa Lists all c...

Страница 122: ...ult from for example unknown commands or syntax errors and gen erally affect a single parameter or setting Static errors as a rule prevent the execution of normal measurements Usage Query only SYSTem...

Страница 123: ...s update_time Range 0 0 to 10 0 RST 10e 3 Default unit Seconds SYSTem TLEVels Queries the possible power test levels of the sensor Usage Query only SYSTem TRANsaction BEGin Starts a series of settings...

Страница 124: ...ERS Query 1999 0 Response SCPI version from 1999 Usage Query only 9 12 Using the Status Register Further information Chapter 11 3 Status Reporting System on page 143 Contents General Status Register C...

Страница 125: ...n CALibrating CONDition STATus OPERation CONDition STATus OPERation LLFail CONDition STATus OPERation MEASuring CONDition STATus OPERation SENSe CONDition STATus OPERation TRIGger CONDition STATus OPE...

Страница 126: ...Stionable CALibration ENABle value STATus QUEStionable ENABle value STATus QUEStionable POWer ENABle value STATus QUEStionable WINDow ENABle value Parameters value RST 0 9 12 5 Controlling the Negativ...

Страница 127: ...STATus OPERation PTRansition value STATus OPERation LLFail PTRansition value STATus OPERation MEASuring PTRansition value STATus OPERation SENSe PTRansition value STATus OPERation TRIGger PTRansition...

Страница 128: ...e the following sequence of commands RST INITiate FETCh The RST sets the Continuous Average mode INITiate initiates the measurement After RST the trigger system is set to TRIGger SOURce IMMediate so t...

Страница 129: ...not be fetched too fast Therefore a sleep time between two consecutive SENS POW AVG BUFF DATA queries is meaningful Since the sensor reaches approximately 50000 measurements per second in this setup...

Страница 130: ...ment This example written in pseudo code shows how to setup and execute a buffered continuous average measurement Select whether using BUS Trigger true or EXT Trigger false bool bUseBUSTrigger true Us...

Страница 131: ...sical measurements have been triggered SENSOR write INIT IMM The end of a physical measurement can be recognized by a transistion to NOT MEASURING which is a negative transistion on bit 1 SENSOR write...

Страница 132: ...mples R S NRPxxA N 132 User Manual 1177 6017 02 05 All 17 physical measurement have been executed That means buffer is full and can be read SENSOR query FETCH szBuf sizeof szBuf printf szBuf Performin...

Страница 133: ...ocol IVI 6 1 TCPIP host address hislip0 INSTR VISA Socket communication LAN Ethernet TCPIP host address LAN device name port SOCKET VISA is a standardized software interface library providing input an...

Страница 134: ...S NRPxxA N power sensor USB product ID R S NRP6A 0x0178 R S NRP6AN 0x0179 R S NRP18A 0x014E R S NRP18AN 0x014F Example USB 0x0AAD 0x0178 100001 0x0AAD is the vendor ID for Rohde Schwarz 0x0178 is the...

Страница 135: ...sponding interface protocols The string of the LAN device name is emphasized in ital ics HiSLIP TCPIP IP address or hostname hislip0 INSTR hislip0 is the HiSLIP device name designates that the interfa...

Страница 136: ...nfigured TCP IP ensures connection oriented communication where the order of the exchanged messages is adhered to and interrupted links are identified With this proto col messages cannot be lost 11 1...

Страница 137: ...on a specially defined port The socket address is a combination of the IP address or hostname of the sensor and the number of the port configured for remote control The power sensors use port number...

Страница 138: ...plied to multiple instances of an object e g specific channels or sources the required instances can be specified by a suffix added to the command Numeric suffixes are indicated by angular brackets 1...

Страница 139: ...ent to INIT Parameters in curly brackets are optional and can be inserted once or several times or omitted 11 2 3 SCPI Parameters Many commands are supplemented by a parameter or a list of parameters...

Страница 140: ...t is called by the RST com mand UP DOWN UP DOWN increases or reduces the numeric value by one step The step width can be specified via an allocated step command for each parameter which can be set via...

Страница 141: ...hich is suitable for the transmission of large amounts of data A command using a block data parameter has the following structure Example SYSTem HELP SYNTax ALL Response 45168xxxxxxxx The ASCII charac...

Страница 142: ...Command Line A command line can consist of one or several commands It is terminated by one of the following a New Line a New Line with EOI an EOI together with the last data byte Several commands in a...

Страница 143: ...output without a unit Physical quantities are referred to the basic units or to the units set using the Unit command The response 3 5E9 for example stands for 3 5 GHz Truth values Boolean values are...

Страница 144: ...r ESR ESE on page 151 5 Chapter 11 3 8 Operation Status Register on page 152 The highest level is formed by the status byte register STB and the associated ser vice request enable SRE register The sta...

Страница 145: ...part The two transition register parts define which state transition of the CONDition part none 0 to 1 1 to 0 or both is stored in the EVENt part The Positive TRansition part acts as a transition fil...

Страница 146: ...he sum bit for each register Thus an event can lead to a service request throughout all levels of the hierarchy 11 3 3 Status Byte STB and Service Request Enable Register SRE The status byte register...

Страница 147: ...sor into the controller 5 ESB Standard event status register summary bit This bit is set if one of the bits in the standard event status register is set and enabled in the event status enable register...

Страница 148: ...ERRor Table 11 5 Meaning of bits used in the device status register Bit No Meaning 0 Sum of SERR bits The sum combination of SERR bits 1 to 4 1 SERR measurement not possible Static error SERR exists c...

Страница 149: ...her close the application which opened the NRP legacy channel or close at least the connection to the sensor 8 Reference PLL locked state This bit signals whether the PLL for the clock reference is sy...

Страница 150: ...9 POST failure The built in test of the R S NRPxxA N carried out automatically upon power up has generated an error 10 to 15 Not used 11 3 6 1 Questionable Power Status Register The CONDition registe...

Страница 151: ...3 4 5 6 7 Standard Event Status Operation Complete 0 Query Error Device Dependent Error Execution Error Command Error User Request Power On Table 11 9 Meaning of bits used in the standard event status...

Страница 152: ...the error in greater detail is entered in the error queue 6 User request This bit is set when the sensor is switched over to manual control 7 Power on This bit is set when the sensor is switched on 1...

Страница 153: ...it This bit is set if a sensor is initialized See Chapter 11 3 8 4 Operation Sense Status Register on page 155 11 Lower limit fail status register This bit is set if a displayed value has dropped belo...

Страница 154: ...uring status register Bit No Meaning 0 Not used 1 Sensor measuring The sensor is performing a measurement 5 to 15 Not used 11 3 8 3 Operation Trigger Status Register The CONDition register contains in...

Страница 155: ...t Table 11 14 Meaning of bits used in the operation sense status register Bit No Meaning 0 Not used 1 Sensor initializing The sensor is being initialized 5 to 15 Not used 11 3 8 5 Operation Lower Limi...

Страница 156: ...register indicates whether a limit value was exceeded since the last readout of the Operation Upper Limit Fail Status Register Querying the register STATus OPERation ULFail CONDition STATus OPERation...

Страница 157: ...nsors with networking capabilities the R S NRP LAN power sensors The position of the status icon is indicated in Figure 6 1 The colors are explained in Chapter 4 4 Status LED on page 26 12 2 Performin...

Страница 158: ...the firmware update problems can occur 1 Perform the firmware update again Sometimes a further update fixes the prob lems 2 If the power sensor is not accessible any more contact the service 12 4 Cann...

Страница 159: ...AUTO RESolution 92 SENSe Sensor AVERage COUNt AUTO TYPE 93 SENSe Sensor AVERage RESet 92 SENSe Sensor AVERage TCONtrol 93 SENSe Sensor AVERage STATe 94 SENSe Sensor CORRection DCYCle 95 SENSe Sensor C...

Страница 160: ...ating NTRansition 126 STATus OPERation CALibrating PTRansition 127 STATus OPERation CALibrating SUMMary EVENt 125 STATus OPERation CONDition 125 STATus OPERation ENABle 126 STATus OPERation LLFail CON...

Страница 161: ...Wer NTRansition 126 STATus QUEStionable POWer PTRansition 127 STATus QUEStionable POWer SUMMary EVENt 126 STATus QUEStionable PTRansition 127 STATus QUEStionable WINDow CONDition 125 STATus QUEStionab...

Страница 162: ...T 122 SYSTem SERRor 122 SYSTem SUTime 123 SYSTem TLEVels 123 SYSTem TRANsaction BEGin 123 SYSTem TRANsaction END 123 SYSTem VERSion 124 SYSTem SENSor NAME 123 TEST SENSor 111 TRIGger ATRigger DELay 78...

Страница 163: ...10 Diagnostics Selftest 157 Disconnecting Host interface 24 RF 15 Documentation overview 9 Download R S NRP Toolkit 29 Dropout time Trigger 74 DUT Connecting 14 Disconnecting 14 E Electromagnetic inte...

Страница 164: ...bile 39 Release notes 10 Remote control Common commands 65 Ethernet interface 134 HiSLIP protocol 136 Interfaces 133 Protocols 133 Socket communication 137 USB interface 133 VISA resource strings 134...

Страница 165: ...interface Remote control 133 USB product ID 134 USB resource string 134 USB sensor hub 16 User manual 9 V Versions of R S NRP software 32 VISA Resource string 134 VXI 11 Protocol 136 Resource string 1...

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