Home

WT310/WT310HC/WT332/WT333 Digital Power Meter

1. 7654312 1 0 Service request enable register i amp OR 1 ME A MSS 7 6 1 0 Status byte 4 Y Service request occurrence Output Error queue queue 71651431 2 1 0 Standard event enable register o A 5 i o i 75 en 3 1 et A A 716151413 2 1 0 Standard event register 15 14 13 12 14 1019876543 2 1 0 Extended event enable 4 register I 4 4 OR 4 15 14 13 12 11 1019876543201 0 Extended event register A 15 14 13 12 41 101 9 8 7 6 5 4 2 1 0 Transition filter A 15 14 13 12 41 1019187651413 2 1 0 Condition register IM WT310 17EN 7 1 About Status Reports Overview of Registers and Queues Name Function Write Read Status byte Serial polling ROS STB MSS Service request enable Status byte mask SRE SRE register Standard event register Indicates device status changes ESR Standard event enable Standard event register mask ESE ESE register Extended event Indicates device status changes STATus EESR register Extended event enable Extended event register mask STATus EES
2. Program header nu Space Program Header The program header indicates the command type For details see page 5 3 Program Data Attach program data if there are conditions that are required to execute a command Separate the program data from the header with a space ASCII code 20H If there are multiple sets of program data separate each Set with a comma For details see page 5 6 Example INPut CFACtor 3 lt PMT gt Data Response Messages The response message syntax is as follows Response message unit jJ lt RMT gt lt Response Message Unit gt A response message consists of one or more response message units Each unit corresponds to one response Separate each response message unit with a semicolon For details on the response message syntax see the next page Example INPUT FILTER LINE 0 FREQUENCY 0 lt gt Unit Unit lt RMT gt RMT is a response message terminator It is NL END IM WT310 17EN Buruiure1604gd 5 1 Messages Response Message Unit Syntax The response message unit syntax is as follows Response data BE Response header Space Response Header A response header sometimes precedes the response data Separate the data from the header with a space For details see page 5 5
3. Data reception control using handshaking When handshaking is in use and lt 256 bytes gt the free space in the buffer drops to 64 bytes because the data in A the internal program fast Used Free 64 bytes enough data reception stops Data continues to be passed to the OM internal program If the free space hz CES in the buffer reaches 192 bytes Used Free 192 bytes data reception resumes Regardless of the handshaking method if the buffer becomes full excessive data will be discarded Used Note You must design PC programs so that the receive buffers of both the WT300 series and PC do not become full IM WT310 17EN 3 7 ZEZ SH B 3 4 Configuring the WT300 Series RS 232 Settings Data Format The WT300 series RS 232 interface performs communication using start stop synchronization In start stop synchronization characters are transmitted one at a time Each character consists of a start bit data bits a parity bit and a stop bit see the following figure Baud rate Terminator Circuit 1 character idle state lt Data bits 7 or 8 bits d Parity bit Start bit Even odd 1or2 or none 2 Select the data length and parity stop bit from the following options 8 NO 1 7 EVEN 1 7 ODD 1 7 NO 2 The circuit returns to the idle state dotted line or is activated solid line if the start bit of the next piece of data is ava
4. 1 eiaeaen iii Chapter 1 USB Interface Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 1 1 Component Names and nnne 1 1 1 2 USB Interface Features and 1 2 1 3 Connecting tothe USB Interface uenerit eene ttn pene Yous etx 1 3 1 4 Configuring the WT300 Series USB 95 1 4 GP IB Interface 2 1 Component Names and 2 1 2 2 GP IB Interface Features and 2 2 2 3 Connecting to the GP IB Interface nionem nennen 2 4 24 Configuring the WT300 Series GP IB Settings 2 6 2 5 Responses to Interface 2 7 RS 232 Interface 3 1 Component Names and 3 1 3 2 RS 232 Interface Features and 3 2 3 3 Connecting to the RS 232 3 3 3 4 Configuring the WT300 Series RS 232 Settings 3 5 Ethernet Interface 4 1 Component Names and 4 1 4 2 Ethernet Interface Features and Specifications esse 4 2 4 3 Connecting to the Ethernet Interface eee cerne 4 3 44 C
5. 67 89 DELC J9PAF 13L6 or equivalent Pin No Signal Name Input or Output Function 2 RD Received Data Input Data received from the PC 3 SD Send Data Output Data sent to the PC 5 SG Signal Ground Signal ground 7 RS Request to Send Output Handshaking signal for receiving data from the PC 8 CS Clear to Send Input Handshaking signal for sending data to the PC Pins 1 4 6 and 9 are not used 9 pin to 25 pin Adapter and Signal Names 9 3 27 8 5 2 3 4 5 7 Numbers in parentheses are pin numbers for the 25 pin connector Signal Direction The following figure shows the directions of the signals of the WT300 series RS 232 interface RS Request to send CS Clear to send 8 wT300 lt SD Send data series RD Receive data PC IM WT310 17EN 3 3 o2ej19ju ZEZ SH B 3 3 Connecting to the RS 232 Interface RS 232 Standard Signals and Their JIS and CCITT Abbreviations Pin No Abbreviation 9 pin connector 85 232 CCITT 5 GND M02 55 fSignalground BA TXD Transmitted data BB RXD 4 Reauestto send Signal Wiring Example The pin numbers are for the 9 pin connector In general use a crossover cable OFF OFF XON XON CTS RTS CS RS PC WT PC SD 3 n 3 SD SD 3 RD 2 2 RD RD 2 RS 7 7 RS RS 7 CS 8 L 8 CS cs 8
6. Response Data Response data contains the content of the response If there are multiple sets of response data separate each Set with a comma For details see page 5 5 Example 100 00E 03 RMT RMS lt RMT gt Data Header Data Fl M If there are multiple queries in a program message responses are returned in the same order that the queries were received in In most cases a single query returns a single response message unit but there are a few queries that return multiple units The first response message unit always corresponds to the first query but the nth response unit may not necessarily correspond to the nth query Therefore if you want to make sure that every response is retrieved divide the program messages into individual messages Precautions to Be Taken when Sending and Receiving Messages If the controller sends a program message that does not contain a query the controller can send the next program message at any time e If the controller sends a program message that contains a query the controller must finish receiving the response message before it can send the next program message If the controller sends the next program message before receiving the response message in its entirety an error will occur A response message that is not received in its entirety will be discarded If the controller tries to receive a response message when there is none an error will
7. Pattern 3 lt gt Function Element 1 U 1 2 il 3 P 1 4 S 1 5 Q 1 6 LAMBda 1 7 1 8 1 9 FI 1 10 UPPeak 1 11 UMPeak 1 12 IPPeak 1 13 IMPeak 1 14 PPPeak 1 15 1 16 to 30 U to PMPeak 2 31 to 45 U to PMPeak 3 46 to 60 U to PMPeak SIGMA 61 to 255 NONE Pattern 4 lt gt Function Element 1 U 1 2 1 3 P 1 4 S 1 5 Q 1 6 LAMBda 1 7 1 8 1 9 FI il 10 UPPeak 1 11 UMPeak 1 12 IPPeak 1 13 IMPeak 1 14 TIME 1 15 WH 1 16 WHP 1 17 WHM 1 18 AH 1 19 AHP 1 20 AHM 1 21 to 40 U to AHM 2 41 to 60 U to AHM 3 61 to 80 U to AHM SIGMA 81 to 255 NONE 6 26 IM WT310 17EN 6 11 NUMeric Group 2 Preset Patterns for Harmonic Measurement Numeric List Data Output Items These patterns apply to the NUMeric LIST PRI Pattern 1 lt gt Function Element 1 U 1 2 1 3 P 1 4to6 UtoP 2 7109 Uto P 3 10 to 32 NONE Pattern 2 lt gt Function Element 1 U 1 2 1 3 P 1 4 PHIU 1 5 PHII 1 6 to 10 U to PHII 2 11 to 15 U to PHII 3 16 to 32 NONE Pattern 3 lt gt Function Element 1 U 1 2 1 1 4 UHDF 1 5 IHDF 1 6 PHDF 1 7 to 12 U to PHDF 2 13 to 18 U to PHDF 3 19 to 32 NONE Pattern 4 lt gt Function Element 1 U 1 2 1 3 P 1 4 PHIU 1 5 PHII 1 6 UHDF 1 7 IHDF 1 8 PHDF 1 9 to 16 U to PHDF 2 17 to 24 U to PHDF 3 25 t
8. INPUT SYNCHRONIZE VOLTAGE INPUT SYNCHRONIZE INPUT SYNCHRONIZE VOLTAGE Example IM WT310 17EN 6 13 6 7 INPut Group INPut FILTer Function Queries all input filter settings Syntax INPut FILTer INPut FILTer LINE Function Sets or queries the line filter Syntax INPut FILTer LINE Boolean INPut FILTer LINE Example INPUT FILTER LINE OFF INPUT FILTER LINE gt INPUT FILTER LINE 0 INPut FILTer FREQuency Function Sets or queries the frequency filter Syntax INPut FILTer FREQuency Boolean INPut FILTer FREQuency Example INPUT FILTER FREQUENCY OFF INPUT FILTER FREQUENCY gt INPUT FILTER FREQUENCY 0 INPut POVer Function Queries the peak over range information Syntax INPut POVer Example INPUT POVER gt 0 Description The peak over range information of each element is mapped as shown below For the response the sum of the values of each bit is returned in decimal format For example a response of 16 indicates that a peak over range is occurring at U3 7654 32 10 13 U3 I2 U2 11 U1 INPut CRANge Function Sets or queries the check range status Syntax INPut CRANge Example INPUT CRANGE gt 0 Description The CHECK RANGE LED status is mapped as shown below For the response the sum of the values of each bit is returned in decimal format For example
9. OLI 1888888 wu mA LOCAL key Press this key to switch to local mode In local mode remote mode remote control using communication commands is cleared and key operation becomes possible This key is disabled when local lockout see page 4 2 has been activated by a controller Rear Panel 9 i ANS AWARNING amp amp So VOLTAGE 4 En E CURRENT A ETHERNET Ethernet port This port is for connecting the WT300 series to a controller such as a PC using an Ethernet cable For details on how to connect see page 4 3 4 1 IM WT310 17EN 39UJ9U13 gt 4 2 Ethernet Interface Features and Specifications Ethernet Interface Features Reception Feature You can use the reception feature to specify the same settings that you specify by using the front panel keys Output requests for measured and computed data panel setup parameters and error codes can be received Transmission Feature The WT300 series can transmit measured and co
10. NUMeric NORMal VALue PMT Read the response to NUMeric NORMal VALue STATus EESR PMT Read the response to STATus EESR Return to Loop For a description STATus FILTerl FALL and STATus EESR see the previous section about the extended event register The COMMunicate WAIT 1 command specifies that the program will wait for bit 0 in the extended event register to be set to 1 NUMeric NORMal VALue is not executed until bit O in the extended event register becomes 1 IM WT310 17EN Chapter 6 Commands 6 1 List of Commands Command Function Page AOUTput Group AOUTput Queries all D A output settings 6 5 AOUTput NORMal PRESet Sets the D A output items to their default values 6 5 AOUTput NORMal 1 lt gt Sets or queries a D A output item function or element 6 5 AOUTput NORMal IRTime Sets or queries the rated integration time that is used in the D A output of the 6 5 integrated value COMMunicate group COMMunicate Queries all communication settings 6 6 COMMunicate HEADer Sets or queries whether headers are attached to query responses 6 6 COMMunicate LOCKout Sets clears local lockout 6 6 COMMunicate REMote Sets the WT300 series to remote or local mode ON is remote mode 6 6 COMMunicate STATus Queries the line specific status 6 6 COMMu
11. Resets settings to their AOUTput PRESet defaults Function IM WT310 17EN 8 1 ejqneduio o Z LWOLZ LM 8 1 WT210 W230 Compatible Mode COMMunicate group Function WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode A o Sets or queries whether COMMunicate HEADer headers are attached to response data Sets clears local lockout COMMunicate LOCKout Sets remote or local mode COMMunicate REMote Queries the line specific status COMMunicate STATus Sets or queries whether query COMMunicate VERBose responses are returned in full or abbreviated form Waits for the specified COMMunicate WAIT extended event to occur Creates a response for the COMMunicate WAIT specified extended event CONFigure Group Function WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode Queries all averaging settings CONFigure AVERaging A MEASure AVERaging Sets or queries the averaging CONFigure AVERaging type TYPE Sets or queries the on off state CONFigure AVERaging A MEASure AVERaging STATe of averaging STATe ing A Po MEASure AVERaging TYPE Sets or queries the crest factor CONFigure CFACtor Al Queries all current range CONFigure CURRent A settings A gt PPP gt MEASure AVERaging COUNt INPut CFACtor INPut CURRent INPut CURRent AUTO
12. pect remote and local modes switching 1 2 2 3 3 2 4 2 zero level compensation essen 6 33 REN Remote Enable zr m messages ccce Ee RR ORA responses without headers RS 232 CE Sample ii 6 29 eet Cm 6 13 SDC Selected Device 2 7 self test gt 6 32 Seral MOWING 6 30 Service request enable register setup parameters single measurement iu SPD Serial Poll SPE Serial Poll Enable eee standard event enable register standard event 9145 neni n PER EG SET Status byte aceite tpe a RC DOM eR status reports Stofa gE AERE TE Storage Interval a neni ceret ur Asana te SUING nete a ctr tp nest subnet mask cicer et U Page UPper leVell QUENY e M 5 4 WSB Cable 1 3 1 3 USB interage i e er rtr ecc ec 1 2 USB TMG nib tnter ntn ee P eee vs 1 4 Index 2 IM WT310 17EN
13. ERE LOCAL key Press this key to switch to local mode In local mode remote mode remote control using communication commands is cleared and key operation becomes possible This key is disabled when local lockout see page 1 2 has been activated by a controller Rear Panel vormat SOYMAN VOLTAGE Ss T wx VALS 1 n AN WARNING amp amp fume JI USB port This port is for connecting the WT300 series to a controller such as a PC using a USB cable For details on how to connect see page 1 3 IM WT310 17EN 1 1 e eyieju JSN USB Interface Features and Specifications USB Interface Features Reception Feature You use the reception feature to specify the same settings that you specify by using the front panel keys Output requests for measured and computed data panel setup parameters and error codes can be received Transmission Feature The WT300 series can transmit measured and computed data The WT300 series can transmit panel setup parameters and the status byte The WT300 series can transmit error
14. INPut CURRent SRATio INPut CURRent SRATio ALL Sets or queries the current CONFigure CURRent AUTO auto range on off state Queries all external sensor CONFigure CURRent scaling constant settings ESCaling Sets the external sensor CONFigure CURRent You can set the external scaling constant on all ESCaling ALL sensor scaling constant elements at once using the A FS mV form Sets or queries the external CONFigure CURRent just like the WT210 WT230 sensor scaling constant ofan ESCaling ELEMent lt x gt computation method element Sets or queries the current RANGe Sets or queries the frequency CONFigure FILTer A filter on off state pepe MEE C Sets or queries the line filter CONFigure LFILter A Sets or queries the MAX hold CONFigure MHOLd STATe i A i ing A INPut CURRent SRATio ELEMent lt x gt INPut CURRent RANGe FS External sensor range rating INPut FILTer LINE MEASure MHOLd INPut MODE measurement mode Queries all scaling settings CONFigure SCALing 2201 Sets or queries the CONFigure MODE INPut SCALing INPut SCALing VT CT SFACtor INPut SCALing VT CT SFACtor constant on all elements at ALL once INPut SCALing VT CT SFACtor ELEMent lt x gt B INPut FILTer F REQuency 8 2 IM WT310 17EN 8 1 WT210 W230 Compatible Mode WT210 W230 Command WT300 Series Command WT210 W230
15. NUMeric NORMa1 NUMber is set to 3 NUMERIC NORMAL HEADER gt 0 1 1 1 The data name header of the output item is generated If lt NRf gt is specified only the data name for the specified item number is output If lt NRf gt is omitted the data names of the items from 1 to the number specified by the NUMeric NORMal NUMber command are output in order IM WT310 17EN 6 11 NUMeric Group NUMeric LIST Function Queries all harmonic measurement numeric list data output settings Syntax NUMeric LIST Description This is only valid on models with the harmonic measurement G5 option The number of numeric list data items output by NUMeric LIST ITEM lt x gt is determined by NUMeric LIST NUMber NUMeric LIST VALue Function Queries the harmonic measurement numeric list data Syntax NUMeric LIST VALue lt NRf gt lt gt 1 to 32 item number Example When is specified NUMERIC LIST VALUE 1 gt 103 58 00 103 53 00 0 09E 00 2 07E 00 0 04E 00 omitted 0 01E 00 0 01E 00 up to 52 data values When lt gt is omitted when NUMeric LIST NUMber is set to 5 NUMERIC LIST VALUE gt 103 58E 00 NAN 103 53E 00 0 09E 00 2 07E 00 0 04E 00 omitted 0 00E 00 0 00E 00 up to 52 5 260 data values When NUMeric FORMat is set to FLOat NUMERIC LIST VALUE N
16. Other company and product names are registered trademarks or trademarks of their respective holders Revisions e 1st Edition January 2013 2nd Edition June 2013 2nd Edition June 2013 YMI All Rights Reserved Copyright 2013 Yokogawa Meters amp Instruments Corporation IM WT310 17EN i About the USB Interface and Ethernet Interface Touse the USB communication features your PC must have the following WT300 series library TMCTL USB device driver for connecting the WT300 series to the PC Touse the Ethernet communication features your PC must have the following WT300 series library TMCTL You can download the library and driver from the following web page http tmi yokogawa com If you install WTViewerFreePlus in your PC the above library and driver will be installed automatically Sample Programs You can download sample programs for the WT300 series from the following web page http tmi yokogawa com WTViewerFreePlus WTViewerFreePlus is a dedicated software application for the WT300 series It is included in the accompanying CD By using WTViewerFreePlus you can display measured data on a dedicated window save measured data to the PC and change the WT300 series settings from the PC For information on how to install and use WTViewerFreePlus see the WTViewerFreePlus User s Manual IM 760121 02 Example of a Window for Configuring the WT Example of a Window Showing the Mea
17. U Voltage U Current I IP Active power P PHIU Phase difference between harmonic voltage U k and the fundamental wave U 1 qU PHII Phase difference between harmonic current and the fundamental wave 1 1 l k UHDF Harmonic distortion factor of voltage Uhdf IHDF Harmonic distortion factor of current Ihdf PHDF Harmonic distortion factor of active power Phdf Numeric Data Format 1 Normal Data Integrated values WH WHP WHM AH AHP and AHM ASCII lt NR3 gt format mantissa up to 6 digits exponent 2 digits Example 123 456E 00 FLOAT IEEE single precision floating point 4 byte format Elapsed integration time TIME ASCII lt 1 gt format in units of seconds Example 3600 for 1 hour 1 00 00 FLOAT IEEE single precision floating point 4 byte format in units of seconds Example 0x45610000 for 1 hour 1 00 00 Noitems NONE ASCII NAN Not A Number FLOAT Ox7E951BEE 9 91E 37 Other ASCII lt NR3 gt format mantissa up to 5 digits exponent 2 digits Example 123 45 456E 00 FLOAT IEEE single precision floating point 4 byte format 2 Error Data Data does not exist the display shows ASCII NAN Not A Number FLOAT Ox7E951BEE 9 91E 37 Over range the display shows O L e Overflow the display shows O F Data over the display shows ASCII INF INFinity FLOAT Ox7E94F56A 9 9E 37 Note Error In 180
18. Voltage 25 50 100 250 mV 0 5 1 V EX2 Example INPUT CURRENT RANGE 20A INPUT CURRENT RANGE gt INPUT CURRENT RANGE 20 0 00 INPUT CURRENT RANGE EXTERNAL 10V INPUT CURRENT RANGE gt INPUT CURRENT RANGE EXTERNAL 10 0E 00 Description EXTernal and lt Voltage gt can only be selected on models with the external current sensor input EX1 or EX2 option INPut CURRent AUTO Function Sets or queries the current auto range on off state Syntax INPut CURRent AUTO lt 1 gt INPut CURRent AUTO INPUT CURRENT AUTO ON INPUT CURRENT AUTO gt INPUT CURRENT AUTO 1 Example INPut CURRent CONFig Function Sets or queries the valid current range Syntax INPut CURRent CONFig ALL lt Current gt Current Current INPut CURRent CONFig ALL All ranges are valid Current See INPut CURRent RANGe Example INPUT CURRENT CONFIG ALL INPUT CURRENT CONFIG gt INPUT CURRENT CONFIG ALL INPUT CURRENT CONFIG 20 5 1 INPUT CURRENT CONFIG gt INPUT CURRENT CONFIG 20 0E 00 5 0E 00 1 0E 00 Description In the parameters list the current ranges that you want to enable To enable all the ranges specify the parameter ALL INPut CURRent POJump Function Sets or queries the jump destination range that is used when a current peak over range occurs Syntax INPut CURRent POJump
19. 4 5 6 7 Of the IEEE 488 1 interface functions the subsets that are supported See section 2 2 GP IB Interface Features and Specifications The operation of the device when it is assigned an address outside the 0 to 30 range The address of this instrument cannot be set to an address outside the 0 to 30 range Reaction of the device when the user changes the address The address change is detected when the user presses INTERFACE and changes the address on the GPib menu The new address is valid until the next time it is changed Device settings at power up The commands that can be used at power up As a basic rule the previous settings the settings that were in use when the WT300 series was turned off are used There are no limitations on the commands that can be used at power up Message exchange options a Input buffer size 1024 bytes b Queries that return multiple response messages See the example of the commands given in chapter 6 c Queries that create response data when the command syntax is being analyzed queries create response data when the command syntax is analyzed d Queries that create response data during reception There are no queries of which the response data are created upon receiving a send request from the controller e Commands that have parameters that restrict one another See the example of the commands given in chapter 6 Items that are included in th
20. 6 30 6 15 STORG GUP iit eer rrt P EC Ehe e EXE 6 31 6 16 SYSTem Group redeo ERE EDO E PRU ae e 6 32 6 17 Common Command 6 33 Chapter7 Status Reports 7 1 About Status Reports ea e EE ro de 7 1 7 2 Status BVIE xx seine eue 7 3 7 3 Standard Event 7 4 7 4 Extended Event Iegistet 26 n denn i d fne Pe ce ES He reet 7 5 7 5 Output and Error QUGUCS pe E oi naai 7 6 Chapter 8 WT210 WT230 Compatible Commands 8 1 WT210 WT230 Compatible Command Mode sme 8 1 Appendix Appendix 1 Error 5 5 nennen testten nns App 1 Appendix 2 About the IEEE 488 2 1992 Standard sss App 5 Index vi IM WT310 17EN Chapter 1 USB Interface 1 1 Component Names and Functions Front Panel INTERFACE key page 1 4 Press this key to view the serial number that is used in USB TMC communication YOKOGAWA 4 wrsao ren masa IBBBBBBI eR DOG BBBBBB zc BAABB ee 888888 HAARAAN IBRBBBBHB KE
21. GP IB RS 232 or Ethernet If you send commands simultaneously from more than one communication interface the WT300 series will not execute the commands properly Install the YOKOGAWA USB Test and Measurement Class driver on your PC For information about how to obtain the YOKOGAWA USB TMC driver contact your nearest YOKOGAWA dealer You can also access the YOKOGAWA USB driver download web page and download the driver http tmi yokogawa com Do not use USB TMC drivers or software supplied by other companies 1 4 IM WT310 17EN Chapter2 Interface 2 1 Component Names and Functions Front Panel INTERFACE key page 2 6 Press this key to set the GP IB address YOKOGAWA 4 wrsao rmen 8888 IH IBBBBBB BARBER 5S Ss BRBBHB BEBBBBICO cc ES wef Q Ee 177 LOCAL key Press this key to switch to local mode In local mode remote mode remote control using communication commands is cleared and key operation becomes possible This key is disabled when local lockout see page 2 3 has been activate
22. INPUT CURRENT EXTSENSOR POJUMP 2 00E 00 Example INPut CURRent SRATio Function Queries the external current sensor conversion ratios of all elements Syntax INPut CURRent SRATio Description This command is only valid on models with the external current sensor input EX1 or EX2 option INPut CURRent SRATio ALL Function Collectively sets the external current sensor conversion ratios of all elements Syntax INPut CURRent SRATio ALL lt NRf gt lt gt 0 001 to 9999 Example INPUT CURRENT SRATIO ALL 10 INPut CURRent SRATio ELEMent lt x gt Function Sets or queries the external current sensor conversion ratio of the specified element Syntax INPut CURRent SRATio ELEMent lt x gt lt NR gt INPut CURRent SRATio ELEMent lt x gt lt gt 1403 element lt gt 0 001 to 9999 INPUT CURRENT SRATIO ELEMENT1 10 INPUT CURRENT SRATIO ELEMENT1 gt INPUT CURRENT SRATIO ELEMENT1 10 00 Example INPut RCONfig Function Sets or queries the on off state of the range configuration valid range selection feature Syntax INPut RCONfig Boolean INPut RCONfig INPUT RCONFIG OFF INPUT RCONFIG gt INPUT RCONFIG 0 Example Description The following commands are enabled only when this command is set to ON Measurement range can be skipped INPut VOLTage CONFig INPut VOLTage POJump INPut CURRent C
23. INPUT MODE RMS INPut VOLTage Function Queries all voltage measurement settings Syntax INPut VOLTage INPut VOLTage RANGe Function Syntax Example Sets or queries the voltage range INPut VOLTage RANGe Voltage INPut VOLTage RANGe When the crest factor is set to 3 Voltage 15 30 60 150 300 600 V When the crest factor is set to 6 Voltage 7 5 15 30 75 150 300 V INPUT VOLTAGE RANGE 600V INPUT VOLTAGE RANGE gt INPUT VOLTAGE RANGE 600 0 00 INPut VOLTage AUTO Function Syntax Example Sets or queries the voltage auto range on off state INPut VOLTage AUTO lt Boolean gt INPut VOLTage AUTO INPUT VOLTAGE AUTO ON INPUT VOLTAGE AUTO INPUT VOLTAGE AUTO 1 INPut VOLTage CONFig Function Syntax Example Description Sets or queries the valid voltage range INPut VOLTage CONFig ALL Voltage Voltage lt gt INPut VOLTage CONFig ALL All ranges are valid Voltage See INPut VOLTage NGe INPUT VOLTAGE CONFIG ALL VOLTAGE CONFIG gt INPUT VOLTAGE CONFIG ALL PUT VOLTAGE CONFIG 600 150 15 INPUT VOLTAGE CONFIG gt INPUT VOLTAGE CONFIG 600 0E 00 150 0E 00 15 0E 00 In the parameters list the voltage ranges that you 3 2 want to enable To enable all the ranges specify the parameter ALL IM WT
24. Lead Lag display the phase differences PHI of elements 1 to 3 are output in the range between 180 0 to 180 0 with lead D and lag G set to negative and positive values respectively 6 24 IM WT310 17EN 6 11 NUMeric Group Preset Patterns for Numeric Data Items The Function Option List contains a list of the function names used in commands and their corresponding functions and panel LED indicators Note This list indicates the measurement function and element that are assigned to each item number ITEM lt gt Items that are not set to be measured are displayed or output in the same fashion as when the data does not exist For example if frequency FI of the current of element 2 is not set to be measured the output of ITEM19 in pattern 2 is the same as the output when the data does not exist NAN if the data format is ASCII 1 Preset Patterns for Numeric Data Items These patterns apply to the NUMeric NORMal PRESet command Pattern 1 lt gt Function Element 1 U 1 2 1 3 P 1 4to6 Uto P 2 7109 Uto P 3 10 to 12 U to P SIGMA 13 to 255 Pattern 2 lt gt Function Element 1 U 1 2 1 3 P 1 4 S 1 5 Q 1 6 LAMBda 1 7 1 8 1 9 1 10 11 to 19 U to FI 2 20 NONE 21 to 29 U to FI 3 30 NONE 31 to 39 U to FI SIGMA 40 NONE 41 to 255 NONE IM WT310 17EN 6 25 6 11 NUMeric Group
25. N digit byte number data byte sequence Description This is only valid on models with the harmonic measurement G5 option Asingle numeric list data item consists of up to 52 items of numeric data in the following order TOTal DC 1st harmonic NUMeric LIST ORDer f lt NRf gt is specified only the numeric list data of the specified item number is output up to 52 items of data If lt NRf gt is omitted the numeric list data of item numbers from 1 to NUMeric LIST NUMber is output in order up to 52 times the number specified by NUMeric LIST NUMber Forthe formats of each individual numeric data output item see Numeric Data Formats at the end of this group of commands page 6 24 The WT300 series does not measure data for the DC component It is always NUMeric LIST NUMber Function Sets or queries the number of numeric list data items that are transmitted by NUMeric LIST VALue Syntax NUMeric LIST NUMber lt NRf gt ALL NUMeric LIST NUMber lt gt 1 to 32 ALL NUMERIC LIST NUMBER 5 NUMERIC LIST NUMBER NUMERIC LIST NUMBER 5 Description This is only valid on models with the harmonic measurement G5 option Ifthe parameter is omitted from the NUMeric LIST VALue command the numeric list data items from 1 to the specified value are output in order By default the number of numeric data items is set to 1 Example NUMeric LIST ORDer
26. Select IP address Display B Display B Set the IP address Set the IP address 8 9 Display C 12 Display D 15 5 ser gt 92 168 sr gt 0100 J f 10 Press V and set the number 43 Same as step 10 11 Press SHIFT V to move the digit 14 2 and 11 L gt Select subnet mask Display B 16 Set the subnet mask Set the subnet mask 4 17 Display C 20 Display D 23 vase gt 255255 gt str Jn 255 0 ser AAS 255 f tS tep 10 and 11 2 rs tep 10 and 11 19 ame as step an 22 ame as step an Select default gateway Display B Set the default gateway Set the default gateway 25 Display C 28 Display D 31 ij GAEE gt set J 255255 set gt 0 22 7 ys tep 10 and 11 10 11 27 ame as step an 30 ame as step an Select to apply the settings Display B Apply the settings 33 Display C 34 35 ESC bind str gt EEL gt set gt HOLD Close menu 4 4 IM WT310 17EN 4 4 Configuring the WT300 Series Ethernet Settings Note Only use one communication interface USB GP IB RS 232 or Ethernet If you send commands simultaneously from more than one communication interface the WT300 series will not execute the commands properly You can view the IP address that has been assigned by the DHCP server or the IP address that you specified by followin
27. asterisk at the beginning of a common command 7 Common command example CLS Compound Header Commands other than common commands that are specific to the WT300 series are classified and arranged in a hierarchy according to their functions The compound header syntax is shown below Be sure to use a colon to specify a lower hierarchical level lt gt Compound header example INPut MODE Simple Header These commands are functionally independent and are not contained within a hierarchy The format of a simple header is shown below Rud d 2 Simple header example HOLD Note A lt gt is an alphanumeric character string When Concatenating Commands Command Groups A command group is a group of commands that have common compound headers arranged in a hierarchy A command group may contain sub groups Example portion of the commands from the integration command group INTEGrate INTEGrate MODE INTEGrate TIMer INTEGrate STARt INTEGrate STOP INTEGrate RESet When Concatenating Commands of the Same Group The WT300 series stores the hierarchical level of the command that is currently being executed and processes the next command on the assumption that it belongs to the same level Therefore the common header section can be omitted for commands that belong to the same group Example
28. commands the execution of the next command is held until the execution of the previous command is finished even if multiple commands are sent consecutively All WT300 series commands are sequential commands Even when only sequential commands are available there are times when it is necessary to achieve synchronization to properly query the measured data For example if you want to query the most recent numeric data each time that the measured data is updated you can attempt to do this by sending the NUMeric NORMal VALue command with some arbitrary timing However because the WT300 series returns the current measured data regardless of whether the measured data has been updated since the previous query this method may return data that is the same as the previous data If this happens you must use the following method to synchronize with the end of measured data updating Using the STATus CONDition Query STATus CONDition is used to query the contents of the condition register see page 6 5 You can determine whether the measured data is being updated by reading bit 0 of the condition register If bit O of the condition register is 1 the measured data is being updated If it is O the measured data can be queried However in the case of the WT300 series it is difficult to determine the updating of measured data with STATus CONDition because the period during which bit O of the condition register remains at 1 is very s
29. 0 55 Bits 0 1 and 7 Not used always 0 Bit 2 EAV Error Available This bit is 1 when the error queue is not empty In other words this bit is set to 1 when an error occurs For details see page 7 6 Bit 3 EES Extend Event Summary Bit This bit is set to 1 when the logical AND of the extended event register and the extended event enable register is 1 In other words this bit is set to 1 when a certain event takes place inside the instrument For details see page 7 5 Bit 4 MAV Message Available This bit is 1 when the output queue is not empty In other words this bit is set to 1 when there is data to be transmitted in response to a query For details see page 7 6 e Bit 5 ESB Event Summary Bit This bit is set to 1 when the logical AND of the standard event register and the standard event enable register is 1 In other words this bit is set to 1 when a certain event takes place inside the instrument For details see page 7 4 Bit 6 RQS Request Service MSS Master Status Summary This bit is 1 when the logical AND of the status byte excluding bit 6 and the service request enable register is 1 In other words this bit is set to 1 when the instrument requests service from the controller RQS is set to 1 when the MSS bit changes from 0 to 1 and is cleared when serial polling is carried out or when the MSS bit changes to 0 Bit Masking To mask a bit in the status byte so tha
30. 7 GPIB USB HS Driver NI 488 2M Version 2 8 1 and later Electrical and mechanical Conforms to IEEE St d 488 1978 Functional specifications See the table below Protocol Conforms to IEEE St d 488 2 1992 Code ISO ASCII codes Mode Addressable mode Address setting Press INTERFACE and then select the GPIB menu Set the address to a value between 0 and 30 Clear remote mode Press SHIFT LOCAL to clear remote mode This is not possible when local lockout has been activated by the controller Functional Specifications Function Subset Name Description Source handshaking SH1 Full source handshaking capability Acceptor handshaking AH1 Full acceptor handshaking capability Talker T6 Basic talker capability serial polling and untalk on MLA My Listen Address No talk only capability Listener 14 Basic listener capability unlisten My Talk Address No listen only capability Service request SR1 Full service request capability Remote local RL1 Full remote local capability Parallel polling PPO No parallel polling capability Device clear DC1 Full device clear capability Device trigger DT1 Device trigger capability Controller CO No controller capability Electric characteristics E1 Open collector IM WT310 17EN 2 2 GP IB Interface Features and Specifications Switching between Remote and Local Modes When Switching from Local to Remote Mode The WT300 series switches to remote mode when it
31. Block data cannot be used 5 7 and chapter 6 168 Block data not allowed Block data cannot be used 5 7 and Chapter 6 171 Missing Right Mathematical operations cannot be used 172 Invalid expression Mathematical operations cannot be used Chapter 6 178 Expression data not allowed Mathematical operations cannot be used Chapter 6 181 Invalid outside macro definition The WT300 series does not support the IEEE 488 2 macro specifications Communication Execution Errors 200 to 299 Error in communication execution Code Message Corrective Action Page 221 Setting conflict Check settings that are related to each other Chapter 6 222 Data out of range Check the ranges of the settings Chapter 6 223 Too much data Check data byte lengths Chapter 6 224 Illegal parameter value Check the ranges of the settings Chapter 6 225 OverFlow Keep program messages to 1024 bytes or less in length 5 2 including lt gt 226 Out Of Memory Keep program messages to 1024 bytes or less in length 5 2 including lt gt 241 Hardware missing Check that the specified options are all installed 260 Expression error Mathematical operations cannot be used 270 Macro error The WT300 series does not support the IEEE 488 2 macro specifications 272 Macro execution error The WT300 series does not support the IEEE 488 2 macro specifications 273 Illegal macro label The WT300 series does not support the IEEE 488 2 macro speci
32. FU FI WH WHP WHM AH AHP AHM MATH UPeak IPeak Element lt NRf gt SIGMA lt gt 1 to 3 Example AOUTPUT NORMAL CHANNEL1 0 1 AOUTPUT NORMAL CHANNEL 1 gt AOUTPUT NORMAL CHANNEL1 0 1 Description For details on Function see Function Option List 1 on page 6 23 f Element is omitted the element is set to 1 For MATH Element does not need to be specified In responses Element is omitted AOUTput 1 IRTime Function Sets or queries the rated integration time that is used in the D A output of the integrated value Syntax AOUTput NORMal IRTime lt NRf gt lt NRf gt lt NRf gt AOUTput NORMal IRTime lt gt lt gt lt gt 0 0 0 to 10000 0 0 First NR 0 to 10000 hour Second lt gt 0 to 59 minute Third lt gt 0 to 59 second Example AOUTPUT NORMAL IRTIME 1 0 0 AOUTPUT NORMAL IRTIME AOUTPUT IRTIME 1 0 0 IM WT310 17EN 63 COMMunicate group The commands in this group deal with communications There are no front panel keys that correspond to the commands in this group COMMunicate Function Queries all communication settings Syntax COMMunicate COMMunicate HEADer Function Sets or queries whether headers are attached to query responses Syntax COMMunicate HEADer Boolean COMMunicate HEADer Example COMMUNICATE
33. Function Sets or queries the maximum output harmonic order of the harmonic measurement numeric list data Syntax NUMeric LIST ORDer lt NRf gt ALL NUMeric LIST ORDer lt gt 1 to 50 ALL NUMERIC LIST ORDER 50 NUMERIC LIST ORDER gt NUMERIC LIST ORDER 50 Description This is only valid on models with the harmonic measurement G5 option Example NUMeric LIST SELect Function Sets or queries the output components of the harmonic measurement numeric list data Syntax NUMeric LIST SELect EVEN ODD ALL NUMeric LIST SELect NUMERIC LIST SELECT ALL NUMERIC LIST SELECT NUMERIC LIST SELECT ALL Description This is only valid on models with the harmonic measurement G5 option The available options are explained below EVEN Outputs the components of TOTal DC and even order harmonics ODD Outputs the components of TOTal DC and odd order harmonics ALL Outputs all components Example 6 20 IM WT310 17EN 6 11 NUMeric Group NUMeric LIST ITEM lt x gt Function Sets or queries the output item function and element of the specified harmonic measurement numeric list data item NUMeric LIST ITEM x NONE lt Function gt lt Element gt Syntax NUMeric LIST ITEM lt x gt x 1 to 32 item number NONE No output item Function U IHDF PHDF Element NR lt gt 1 to 3 NUMERIC LIST ITEMI 0 1 NUMERIC LIST ITEM1 gt NU
34. SG 5 5 SG SG 5 Ll n Connection Procedure Connect the cable as shown below WT310 WT310HC 3 2 8 CA RTS 106 CS Clear to send WT 3 SD 2 RD 7 RS 8 CS 5 SG 3 4 IM WT310 17EN 3 4 Configuring the WT300 Series RS 232 Settings This section explains the following setting for controlling the WT300 series remotely through a RS 232 interface Procedure Follow the procedure indicated by the thick lines in the following menu Select the communication function Set the handshaking Set the data format 1 Display B 3 Display A 5 Display B T INTERFACE gt gt _ SET pr WO Ter 0 SET 2 EHAnd WL 2 2 Set the baud rate Set the terminator Display C 9 Display D 11 gro 1200 ST A h A Set close menu 800 ij b 9500 f 5 19200 3 Note Only use one communication interface USB RS 232 or Ethernet If you send commands simultaneously from more than one communication interface the WT300 series will not execute the commands properly IM WT310 17EN 3 5 262 54 B 3 4 Configuring the WT300 Series RS 232 Settings Explanation Handshaking To use the RS 232 interface to communicate with a PC the devices on both sides must negotiate a set of rules to ensure the proper transfer of
35. Switching from Local to Remote Mode The WT300 series switches to remote mode when it is in local mode and it receives a COMMunicate REMote ON command from the PC The REMOTE indicator illuminates All keys except the SHIFT LOCAL key are disabled Settings entered in local mode are retained even when the WT300 series switches to remote mode When Switching from Remote to Local Mode When the WT300 series is in remote mode and you press SHIFT LOCAL the WT300 series switches to local mode However this does not work if the WT300 series has received a COMMunicate LOCKout ON command from the WT300 series switches to local mode when it receives a COMMunicate REMote OFF command from the PC regardless of the local lockout state The REMOTE indicator turns off Key operations are enabled Settings entered in remote mode are retained even when the WT300 series switches to local mode Note You cannot use the RS 232 interface simultaneously with other communication interfaces USB and Ethernet interfaces 3 2 IM WT310 17EN 3 3 Connecting to the RS 232 Interface To connect the WT300 series to a PC use an interface cable that is compatible with the WT300 series specifications Be sure to align the handshaking data transfer rate data format and so on with the PC For the settings see section 3 4 Connector and Signal Names WT310 WT310HC WT332 WT333 123 4 5
36. decimal number as shown in the table below Decimal values are written in the NR form as specified in ANSI X3 42 1975 Symbol Meaning Example NR1 Integer 125 1 1000 NR2 Fixed point number 125 0 90 001 NR3 Floating point number 125 0 0 9 1 1 4 lt NRf gt Any of the forms lt NR1 gt to lt NR3 gt The WT300 series can receive decimal values that are sent from the controller in any of the forms lt 1 gt to lt NR3 gt This is expressed as lt NRf gt The WT300 series returns a response to the controller in one of the forms from NR1 to NR3 depending on the query The same form is used regardless of the size of the value For the lt NR3 gt form the plus sign after the E can be omitted You cannot omit the minus sign Ifa value outside the range is entered the value is adjusted to the closest value within the range Ifa value has more significant digits than available the value will be rounded Voltage Current and Time Voltage Current and Time indicate decimal values that have physical significance A lt Multiplier gt or Unit can be attached to the form that was described earlier The following types of expressions are possible Form Example lt NRf gt lt Multiplier gt lt Unit gt SMV lt NRf gt lt Unit gt 5E 3V lt NRf gt lt Multiplier gt 5M lt NRf gt 5E 3 lt Multiplier gt Multipliers that you c
37. details Discards OPC and OPC commands that are being executed Immediately aborts WAI and COMMunicate WAIT commands GET Group Execute Trigger The same operation as the TRG command PPC Parallel Poll Configure and TCT Take Control are not supported Responses to Multi Line Messages Universal commands LLO Local Lockout Prohibits switching to local mode by disabling the LOCAL key on the front panel DCL Device Clear The same operation as the SDC message SPE Serial Poll Enable Sets the talker function on all devices on the bus to serial polling mode The controller will poll each device one by one SPD Serial Poll Disable Clears the serial polling mode of the talker function on all devices on the bus PPU Parallel Poll Unconfigure is not supported What Are Interface Messages Interface messages are also referred to as interface commands or bus commands They are commands that are issued by the controller They are classified as follows Uni line Messages A single control line is used to transmit uni line messages The following three types are available IFC Interface Clear REN Remote Enable IDY Identify IM WT310 17EN 2 7 2 5 Responses to Interface Messages Multi line Messages Eight data lines are used to transmit multi line messages The messages are classified as follows Address Commands Some address commands are valid w
38. following menu Select the command mode 1 Display B Display D 5 LonAnd gt SET SET Inn A n Set close menu C gt Many of the WT300 series functions can be controlled with the legacy model WT210 WT230 communication commands For these functions WT210 WT230 communication programs can be used on the WT300 series Command Mode WT300 Command mode in which WT300 series communication commands are used These commands are not compatible with WT210 W230 communication commands WT200 Command mode in which the commands are compatible with WT210 W230 communication commands Compatibility with WT210 W230 communication commands is as follows Symbols used in tables A Compatible B Partial limitation C Command accepted but does not work D Command not accepted Note For details on WT210 W230 communication commands see the WT210 WT230 User s Manual AOUTput Group WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode D A output item during normal AOUTput CHANnel x NONE No output item measurement lt gt Function U I P S Q LA 1 to 12 for DA12 MBda PHI FU FI WH WHP WH 1 to 4 for DA4 CMP M AH AHP AHM MATH UPeak Element 1 to Sets or queries the rated AOUTput IRTime Cannot be set with a string al be set with a string integration time
39. front panel NUMeric Function Queries all numeric data output settings Syntax NUMeric NUMeric FORMat Function Sets or queries the numeric data format Syntax NUMeric FORMat ASCii FLOat NUMeric FORMat NUMERIC FORMAT ASCII NUMERIC FORMAT NUMERIC FORMAT ASCII Description The format of the numeric data that is output varies depending on how this command is set The different formats are explained below 1 ASCii Physical values are output in the lt NR3 gt format Only the elapsed integration time TIME is output in lt NR1 gt format The data items are separated by commas 2 FLOat A header for example 240 or 3208 is added in front of each numeric data block A physical value in IEEE single precision floating point 4 byte format follows the header The byte order of the data of each item is MSB First Forthe formats of each individual numeric data Example item see Numeric Data Formats at the end of this group of commands page 6 24 NUMeric NORMal Function Queries all numeric data output settings Syntax NUMeric NORMal Description The number of numeric data items output by NUMeric NORMal ITEM lt x gt is determined by NUMeric NORMal NUMber NUMeric NORMal1 VALue Function Queries the numeric data Syntax NUMeric NORMal VALue lt NRf gt lt gt 1 to 255 item number Example When lt gt is specified NUMERIC NORMA
40. gt ALL Clear all items First lt gt 1 to 255 the number of the first item to clear Second lt gt 1 to 255 the number of the last item to clear NUMERIC NORMAL CLEAR ALL Description If the 2nd lt NRf gt is omitted the output item NUMeric NORMal DELete Function Syntax Example Deletes numeric data output items NUMeric NORMal DELete lt gt lt gt 1st lt gt 1 to 255 the number of the first item to delete Second lt gt 1 to 255 the number of the last item to delete NUMERIC NORMAL DELETE 1 Deletes ITEM1 and shifts ITEM2 and subsequent items forward NUMERIC NORMAL DELETE 1 3 Deletes ITEM1 to ITEMS and shifts ITEM4 and subsequent items forward Description When output items are deleted subsequent items shift forward to fill the empty positions Clears numeric data output items sets the items to NONE specified by the first and all following output items up to number 255 are cleared Empty positions at the end are set to NONE If the second is omitted only the output item specified by the first number is deleted NUMeric NORMal HEADer Queries the numeric data header NUMeric NORMal HEADer lt NRf gt lt gt 1 to 255 item number Function Syntax Example Description When lt gt is specified NUMERIC NORMAL HEADER 1 gt 0 When lt gt is omitted when
41. occur If the controller tries to receive a response message before the transmission of the program message is complete an error will occur If the controller sends a program message containing multiple message units but the message contains incomplete units the WT300 series will try to execute the ones that are believed to be complete However these attempts may not always be successful In addition if such a message contains queries the WT300 series may not necessary return responses Deadlock The WT300 series can store at least 1024 bytes of messages in its transmit and receive buffers the number of available bytes varies depending on the operating conditions If both the transmit and receive buffers become full at the same time the WT300 series will no longer be able to operate This condition is called a deadlock If this happens you can resume operation by discarding response messages Deadlock will not occur if the program message including the lt PMT gt is kept below 1024 bytes Program messages that do not contain queries never cause deadlocks WT310 17EN 5 2 Commands Commands There are three types of commands program headers that a controller may send to the WT300 series The commands differ in their program header formats Common Command Header Commands that are defined in IEEE 488 2 1992 are called common commands The common command header syntax is shown below Be sure to include an
42. one of the bits in this register becomes 1 and the corresponding bit of the standard event enable register is also 1 bit 5 ESB in the status byte is set to 1 Example 1 A query error occurs 2 Bit 2 QYE is set 1 3 When bit 2 of the standard event enable register is 1 bit 5 ESB in the status byte is set to 1 You can also check what type of event occurred in the WT300 series by reading the contents of the standard event register Reading the Standard Event Register You can use the ESR command to read the contents of the standard event register The register is cleared after it is read Clearing the Standard Event Register The standard event register is cleared in the following three cases When the contents of the standard event register are read using the ESR command When CLS command is received When the WT300 series is restarted 7 4 WT310 17EN 7 4 Extended Event Register The extended event register receives information about changes in the condition register which indicates the instrument s internal condition The information is the result of edge detection performed by the transition filter lt gt 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Condition register 15 114 13 112 1441098765432 1 0 STATus CONDition 0 POV3 OVR3 2 POV2 OVR2 POA1 POV1 OVR1 STR FOV OVRS ITM ITG UPD Transition filter 15 14 1
43. quotation marks Aresponse message is always enclosed in double quotation marks String data is any character string Therefore the instrument assumes that the remaining program message units are part of the character string if no closing single or double quotation mark is encountered As a result no error is detected if a quotation mark is omitted Block Data Block data contains 8 bit values It is only used in response messages on the WT300 series The syntax is as follows Form Example N lt N digit decimal number 800000010ABCDEFGHIJ Data byte sequence N Indicates that the data is Block data indicates the number of succeeding data bytes digits in ASCII code e N digit decimal number Indicates the number of bytes of data example 00000010 10 bytes Data byte sequence Expresses the actual data example ABCDEFGHIJ Data is comprised of 8 bit values 0 to 255 This means that the ASCII code which stands for NL can also be included in the data Hence care must be taken when programming the controller IM WT310 17EN 5 5 Synchronization with the Controller Overlap and Sequential Commands There are two types of commands overlap and sequential With overlap commands the execution of the next command may start before the execution of the previous command is finished With sequential
44. the bus IM WT310 17EN Chapter 3 5 232 Interface 3 1 Component Names and Functions Front Panel INTERFACE key page 3 5 Press this key to set the handshaking data format baud rate or terminator YOKOGAWA WT330 rouen YOKOGAWA WT310 e 888 pem Gc 5 888888 e BBBBBH 888888 C erBBBBBHI eS LOCAL key Press this key to switch to local mode In local mode remote mode remote control using communication commands is cleared and key operation becomes possible This key is disabled when local lockout see page 3 2 has been activated by a controller Rear Panel vormat 27 O LZ 119 VOLTAGE SER AE 9 5 i M 3 Al AA m AN A WARNING e RS 232 connector This port is for connecting the WT300 series to a controller such as a P
45. the following cases When new message is received from the controller When a deadlock occurs see page 5 2 When a device clear command DCL or SDC is received When the WT300 series is restarted The CLS command does not clear the output queue You can determine whether or not the output queue is empty by checking bit 4 MAV in the status byte gt gt D2 gt D1 D1 D2 D1 Error Queue When an error occurs the error queue stores the error number and message For example if the instrument receives an incorrect program message from the controller the error number 113 and the error message Undefined header are stored in the error queue when the instrument displays the error message You can use the STATus ERRor query to read the contents of the error queue Like the output queue the messages in the error queue are read from the oldest one first If the error queue overflows the last message is replaced with the following message 350 Queue overflow The error queue is cleared in the following cases e When CLS command is received When the WT300 series is restarted You can determine whether or not the error queue is empty by checking bit 2 EAV in the status byte IM WT310 17EN Chapter8 WT210 WT230 Compatible Commands 8 1 WT210 WT230 Compatible Command Mode Procedure Follow the procedure indicated by the thick lines in the
46. the peak over range information 6 14 NPut CRANge Sets or queries the check range status 6 14 INTEGrate Group INTEGrate Queries all integration settings 6 15 INTEGrate MODE Sets or queries the integration mode 6 15 INTEGrate TIMer Sets or queries the integration timer value 6 15 INTEGrate STARt Starts integration 6 15 INTEGrate STOP Stops integration 6 15 INTEGrate RESet Resets the integrated value 6 15 INTEGrate STATe Queries the integration status 6 15 MATH Group MATH Sets or queries the MATH equation 6 16 MEASure Group MEASure Queries all measured and computed data output settings 6 17 MEASure AVERaging Queries all averaging settings 6 17 MEASure AVERaging STATe Sets or queries the on off state of averaging 6 17 MEASure AVERaging TYPE Sets or queries the averaging type 6 17 MEASure AVERaging COUNt Sets or queries the averaging coefficient 6 17 MEASure MHOLd Sets the MAX hold on off state 6 17 NUMeric Group NUMeric Queries all numeric data output settings 6 18 NUMeric FORMat Sets or queries the numeric data format 6 18 NUMeric NORMal Queries all numeric data output settings 6 18 NUMeric NORMal VALue Queries the numeric data 6 18 NUMeric NORMal NUMber Sets or queries the number of numeric data items that are transmitted by the 6 18 NUMeric NORMal VALue command NUMeric NORMal ITEM x Sets or queries the specified numeric data output item function element 6 19 and harmo
47. transmission It resumes the operation when it receives a X ON code The CS signal received from the PC is ignored Data Reception Control Software handshaking is performed between the WT300 series and the PC When the free area of the receive buffer falls to 64 bytes the WT300 series sends an code to the PC When the free area reaches 192 bytes the WT300 series sends an X ON code RS is fixed to true 3 6 IM WT310 17EN 3 4 Configuring the WT300 Series RS 232 Settings CS RS Data Transmission Control Hardware handshaking is performed between the WT300 series and the PC If CS is set to false while the WT300 series is sending data it stops the data transmission Then if CS is set to true it resumes the operation The X OFF and signals are treated as data Data Reception Control Hardware handshaking is performed between the WT300 series and the PC When the free area of the receive buffer falls to 64 bytes the WT300 series sets RS to false When the free area reaches 192 bytes the WT300 series sets RS to true Notes on Data Reception Control When handshaking is used to control the reception of data data may still be received from the PC even when the free space in the receive buffer drops below 64 bytes In such cases if the receive buffer becomes full excessive data will be discarded regardless of the handshaking method When more space becomes available data storage resumes
48. when a peak over range is detected in the element 2 Element2 current peak over current Bit12 OVR3 Set to 1 when the voltage or current of element 3 exceeds its Element3 mesured data over range Bit13 Set to 1 when a peak over range is detected in the element 3 Element3 voltage peak over voltage Bit14 Set to 1 when a peak over range is detected in the element 3 Element3 current peak over current The transition filter parameters detect changes in the specified condition register bits numeric suffixes 1 to 16 and overwrite the extended event register in the following ways RISE The specified extended event register bit is set to 0 when the corresponding condition register bit changes from 1 to 1 FALL The specified extended event register bit is set to 1 when the corresponding condition register bit changes from 0 to 1 BOTH The specified extended event register bit is set to 1 when the corresponding condition register bit changes from 0 to 1 or from 1 to 0 NEVer Always zero IM WT310 17EN 7 5 syodey snjejs E Output and Error Queues Output Queue The output queue stores query response messages For example if you send a NUMeric 1 VALue command which requests for the transmission of measured data the data is stored in the output queue until it is read As shown below data is stored in order and read from the oldest message first The output queue is cleared in
49. 16 Example STATUS FILTER2 RISE STATus FILTER2 STATUS FILTER2 RISE Description Set how each bit in the condition register must change to trigger the setting of an event If a bit is set to RISE an event is set when the bit changes from 0 to 1 For information about the transition filter see chapter 7 Status Reports STATus QENable Function Sets or queries whether messages other than errors will be stored to the error queue ON or not OFF Syntax STATus QENable lt Boolean gt STATus QENable Example STATUS QENABLE ON STATus QENABLE gt STATus QENABLE 1 STATus OMESsage Function Sets or queries whether message information will be attached to the response to the STATus ERRor query ON OFF Syntax STATus QMESsage lt Boolean gt STATus QMESsage Example STATUS QMESSAGE ON STATus QMESSAGE gt STATus QMESSAGE 1 STATus SPOL1 Function Executes serial polling Syntax STATus SPOL1 Example STATUS SPOLL gt STATUS SPOLL 0 6 30 IM WT310 17EN 6 15 STORe Group The commands in this group deal with storing measured data and saving setup parameters You can make the same settings and queries that you can by pressing the UTILITY key on the front panel and then using the StorE menu or by pressing the SAVE LOAD key and then using the SAVE menu STORe Function Queries all storage settings Syntax STORe STORe STATe Function Sets or queri
50. 3 12 44 10 9876 543 2 STATus FlLTer lt x gt RISE FALL BOTHI NEVer x Extended event register STATus EESR The condition register bits are described below Bit 0 UPD Set to 1 when the measured data is being updated Updating UPD changing from 1 to 0 indicates that updating has been completed Bit 1 ITG Set to 1 during integration Integrate Busy Bit 2 ITM Set to 1 when the integration timer is operating Integrate Timer Busy Bit 3 OVRS Set to 1 when the computed result of 2 overflows 5 results overflow Bit 4 FOV Set to 1 when the frequency is outside the measurement range Frequency Over Bit 5 STR Set to 1 during storage Store busy Bit 6 OVR1 Set to 1 when the voltage or current of element 1 exceeds its Element1 mesured data over range Bit 7 POV1 Set to 1 when a peak over range is detected in the element 1 Element1 voltage peak over voltage Bit 8 POA1 Set to 1 when a peak over range is detected in the element 1 Element1 current peak over current Bit 9 OVR2 Set to 1 when the voltage or current of element 2 exceeds its Element2 mesured data over range Bit10 2 Set to 1 when a peak over range is detected in the element 2 Element2 voltage peak over voltage Bit11 POA2 Set to 1
51. 310 17EN 6 11 6 7 INPut Group INPut VOLTage POJump Function Sets or queries the jump destination range that is used when voltage peak over range occurs Syntax INPut VOLTage POJump OFF Voltage INPut VOLTage POJump OFF No jump destination voltage range Voltage See INPut VOLTage RANGe INPUT VOLTAGE POJUMP 600V INPUT VOLTAGE POJUMP gt INPUT VOLTAGE POJUMP 600 0E 00 Example INPut CURRent Function Queries all electric current measurement settings Syntax INPut CURRent INPut CURRent RANGe Function Sets or queries the current range Syntax INPut CURRent RANGe lt Current gt EXTernal lt Voltage gt INPut CURRent RANGe For direct current input When the crest factor is set to 3 Current 5 10 20 50 100 200 500 mA 1 2 5 10 20 A WT310 Current 1 2 5 10 20 40 A WT310HC Current 0 5 1 2 5 10 20 A WT332 WT333 When the crest factor is set to 6 Current 2 5 5 10 25 50 100 250 0 5 1 2 5 5 10 A WT310 Current 0 5 1 2 5 5 10 20 A WT310HC lt Current gt 0 25 0 5 1 2 5 5 10 A WT332 WT333 For external current sensor input When the crest factor is set to 3 Voltage 2 5 5 10 V EX1 Voltage 50 100 200 500 mV 1 2 V EX2 When the crest factor is set to 6 Voltage 1 25 2 5 5 V EX1
52. 4 3 Connecting to the Ethernet Interface Connection Procedure Connect a UTP Unshielded Twisted Pair or STP Shielded Twisted Pair cable that is connected to a hub or other network device to the Ethernet port on the WT300 series rear panel Hub or router that supports 1000BASE T 100BASE TX PC WT310 WT310HC a Network card UTP or STP cable straight cable WT310 WT310HC WT332 WT333 Ethernet port RJ 45 modular jack Notes on Connection To connect the WT300 series to a PC be sure to use straight cables and to connect through a hub or router Proper operation is not guaranteed for a one to one connection using a crossover cable Use a network cable that supports the data rate of your network IM WT310 17EN 39UJ9U13 4 4 Configuring the WT300 Series Ethernet Settings This section explains the following setting for remotely controlling the WT300 series via the Ethernet interface Procedure Follow the procedure indicated by the thick lines in the following menu Select Ethernet 1 Display B SHIFT SETUP 2 UTILITY A A Select DHCP 3 Display B 5 Display 7 8 ESC gt Jagr dHLP set jog p gt L ar a a setting Close menu i aF F SET ii 0 User settings
53. Address Select the communication function Set the address 1 Display B 3 Display D 6 INTERFACE gt GP b gt _SET gt Addr 1 Set close menu 4 Press to set the number ij L 5 Press to move the digit Note Only use one communication interface USB GP IB or Ethernet If you send commands simultaneously from more than one communication interface the WT300 series will not execute the commands properly When the controller is communicating with the WT300 series or with other devices through GP IB do not change the address Each device that is connected by GP IB has its own unique address in the GP IB system This address is used to distinguish between different devices Therefore you must assign a unique address to the WT300 series when connecting it to a PC or other device 2 6 IM WT310 17EN 2 5 Responses to Interface Messages Responses to Interface Messages Responses to Uni Line Messages IFC Interface Clear Clears the talker and listener functions Stops data transmission if it is in progress REN Remote Enable Switches between the remote and local modes IDY Identify is not supported Responses to Multi Line Messages Address commands GTL Go To Local Switches the instrument to local mode SDC Selected Device Clear Clears the program message command being received and the output queue see page 7 6 for
54. C using an RS 232 cable For details on how to connect see page 3 4 9o5ej19ju ZEZ SH B IM WT310 17EN 3 1 3 2 RS 232 Interface Features and Specifications RS 232 Interface Features Reception Feature You can use the reception feature to specify the same settings that you specify by using the front panel keys Output requests for measured and computed data panel setup parameters and error codes can be received Transmission Feature The WT300 series can transmit measured and computed data The WT300 series can transmit panel setup parameters and the status byte The WT300 series can transmit error codes when errors occur RS 232 Interface Specifications Item Specifications Electrical specifications Complies with EIA 574 EIA 232 RS 232 standard for 9 pin Connection Point to point Transmission mode Full duplex Synchronization Start stop synchronization Baud rate 1200 2400 4800 9600 19200 38400 57600 Start bit 1 bit fixed Data length 7 or 8 bits Parity Even odd no parity Stop bits 1 or 2 bits Connector DELC J9PAF 13L6 JAE or equivalent Hardware handshaking Select whether to use the CA and CB signals as controller lines or assume that they are always true Software handshaking Transmission and reception can be controlled with and X OFF signals X ON ASCII 11H X OFF ASCII 13H Receive buffer size 256 bytes Switching between Remote and Local Modes When
55. Compatible WT300 Series Mode Mode bene we on off state STATe Sets or queries the CONFigure SYNChronize A INPut SYNChronize measurement synchronization source Queries all voltage range CONFigure VOLTage A INPut VOLTage settings Sets or queries the voltage CONFigure VOLTage AUTO INPut VOLTage AUTO auto range on off state Sets or queries the voltage CONFigure VOLTage A INPut VOLTage RANGe range RANGe Sets or queries the wiring CONFigure WIRing A INPut WIRing System DISPlay Group WT210 W230 Command WT210 W230 Compatible WT300 Series Mode Mode Sets or queries the element DISPlay lt x gt ELEMent Normal measurement data be displayed lt gt 1103 DISPlay NORMal ITEM lt x gt lt Function gt lt Element gt 3 Display C Harmonic measurement data Sets or queries the function DISPlay lt x gt FUNCtion A When you set the following DISPlay HARMonics ITEM lt x gt be displayed x 21103 functions the content of lt Function gt lt Element gt 1 Display A display D changes 2 Display B During normal 3 Display C measurement VHZ AHZ During harmonic measurement VTHD ATHD Sets or queries the content to DISPlay lt x gt MODE Supports VALue RANGe be displayed Sets or queries the number of DISPlay lt x gt RESolution A SYSTem RESolution lt NRf gt displayed digits HARMonics Group WT210 W230 Command W
56. E STATus EESE register Condition register Current device status STATus CONDition Transition filter Conditions that change the extended event register STATus FILTer lt x gt STATus FILTer lt x gt Output queue Stores response messages for Query commands queries Error queue Stores error numbers and STATus ERRor messages Registers and Queues That Affect the Status Byte The following registers affect the status byte bits Register Affected Status Byte Bit Standard event register Sets bit 5 ESB to 1 Output queue Sets bit 4 to 1 Extended event register Sets bit EES to 1 Error queue Sets bit 2 EAV to 1 or 0 Enable Registers The following registers are used to mask a bit so that the bit will not affect the status byte even when it is set to 1 Masked Register Mask Register Status byte Service request enable register Standard event register Standard event enable register Extended event register Extended event enable register Reading and Writing to Registers For example use the ESE command to set the standard event enable register bits to 1 and 0 You can use the ESE command to query whether the standard event enable register bits are ones or zeros For details on these commands see chapter 6 IM WT310 17EN 7 2 Status Byte Status Byte RQS 7 6 ESBMAVEESEAV 1
57. G SHIFT HOLD key on the front panel Performs a self test and IST queries the result 8 6 IM WT310 17EN 8 1 WT210 W230 Compatible Mode Correspondence Table of WT210 WT230 Functions and WT300 series Functions Function expressions are shown below For the WT210 WT230 compatible command mode see the WT210 WT230 column WT210 WT300 MM MEN Normal measurement U o _ O LA PH a 5 7 9555 m m O 2 gt lt I N I T H WHE AH A B 4 sss als Preston IPeak The ore vanes saca OO of the absolute values IPPeak and IMPeak 4 1 Harmonic measurement 4 VHZ FU a 79 1 New functions on the WT300 series IM WT310 17EN 8 7 ejqeduio ogz LWOLZ LM Appendix Appendix 1 Error Messages This section explains communication error messages Error messages that are read from a PC such as through the STATus ERRor command output in English If servicing is necessary to solve the problem indicated by a message contact your nearest YOKOGAWA dealer Only communication error messages are listed h
58. HD ITHD Element NRf DISPLAY HARMON DISPLAY HARMON P P lt x gt P P ORDer lt x gt 2 UHDF IHDF PHDF 3 lt gt 4 LAMBda FU FI lt gt 1 to 3 CS ITEM2 I 1 CS ITEM2 gt DISPLAY HARMONICS ITEM2 I 1 For details on lt Function gt see Numeric Data Display Functions on the next page f Element is omitted the element is set to 1 For ORDer Element does not need to be specified In responses Element is omitted IM WT310 17EN 6 4 DISPlay Group Numeric Data Display Functions Applicable command DISPlay NORMal ITEM x lt Function gt lt Element Function Function WT Indicator Element WT Displays A B D 1 2 3 4 U Voltage U V Yes Yes Yes Yes Yes Current I A Yes Yes Yes Yes Yes P Active power P W Yes Yes Yes Yes Yes S Apparent power S VA Yes Yes Q Reactive power Q var Yes Yes LAMBda Power factor PF Yes Yes Yes PHI Phase difference Yes Yes FU Voltage frequency fU V Hz Yes Yes FI Current frequency fl A Hz Yes Yes UPPeak Maximum voltage U pk V pk Yes Yes UMPeak Minimum voltage U pk V pk Yes Yes IPPeak Maximum current A pk Yes Yes IMPe
59. HEADER ON COMMUNICATE HEADER COMMUNICATE HEADER 1 Description Example of a response with a header INPUT VOLTAGE RANGE 150 0E 00 Example of a response without a header 150 0E 00 COMMunicate LOCKout Function Sets clears local lockout Syntax COMMunicate LOCKout lt Boolean gt COMMunicate LOCKout Example COMMUNICATE LOCKOUT COMMUNICATE LOCKOUT COMMUNICATE LOCKOUT 1 COMMunicate REMote Function Sets the WT300 series to remote or local mode ON is remote mode Syntax COMMunicate REMote lt Boolean gt COMMunicate REMote Example COMMUNICATE REMOTE COMMUNICATE REMOTE 1 COMMunicate STATus Function Queries the line specific status Syntax COMMunicate STATus Example COMMUNICATE STATUS gt 0 Description The meaning of each status bit is as follows Bit RS 232 0 Parity error 1 Framing error 2 Break character detection 3 and higher Always zero When an event occurs the corresponding bit is set in the status When the bit is read it is cleared Zero is returned for interfaces other than RS 232 COMMunicate VERBose Function Sets or queries whether the response to a query is returned fully spelled out or in its abbreviated form Syntax COMMunicate VERBose lt Boolean gt COMMunicate VERBose Example COMMUNICATE VERBOSE ON COMMUNICATE VERBOSE COMMUNICATE VERBOSE 1 Description Example of a respon
60. HOLD Group HOLD Sets or queries the on off state of the output hold feature for display 6 10 communication and other types of data INPut Group INPut Queries all input settings 6 11 INPut CFACtor Sets or queries the crest factor 6 11 INPut WIRing Sets or queries the wiring system 6 11 INPut MODE Sets or queries the voltage and current measurement mode 6 11 INPut VOLTage Queries all voltage measurement settings 6 11 Put VOLTage RANGe Sets or queries the voltage range 6 11 INPut VOLTage AUTO Sets or queries the voltage auto range on off state 6 11 INPut VOLTage CONFig Sets or queries the valid voltage range 6 11 INPut VOLTage POJump Sets or queries the jump destination range that is used when a voltage peak 6 12 over range occurs INPut CURRent Queries all electric current measurement settings 6 12 INPut CURRent RANGe Sets or queries the current range 6 12 IM WT310 17EN 6 1 6 1 List of Commands Command Function Page INPut CURRent AUTO Sets or queries the current auto range on off state 6 12 INPut CURRent CONFig Sets or queries the valid current range 6 12 INPut CURRent POJump Sets or queries the jump destination range that is used when a current peak 6 12 over range occurs INPut CURRent EXTSensor Sets or queries the valid external current sensor range 6 12 CONFig INPut CURRent EXTSensor Sets or quer
61. INTEGrate MODE NORMal TIMer 1 0 0 PMT When Concatenating Commands of Different Groups If the subsequent command does not belong to the same group place a colon in front of the header this colon cannot be omitted Example INTEGrate MODE NORMal INPut MODE RMS lt PMT gt When Concatenating Simple Headers If a simple header follows another command place a colon in front of the simple header this colon cannot be omitted Example INTEGrate MODE NORMal HOLD lt gt When Concatenating Common Commands Common commands that are defined in IEEE 488 2 1992 are independent of hierarchy A colon is not needed before a common command Example INTEGrate MODE NORMal CLS INTEGrate TIMer 1 0 0 PMT When Separating Commands with lt gt If you separate two commands with a terminator two program messages will be sent Therefore the common header must be specified for each command even when commands belonging to the same command group are being concatenated Example INTEGrate MODE NORMal lt PMT gt INTEGrate TIMer 1 0 0 PMT IM WT310 17EN 5 3 5 2 Commands Upper level Query An upper level query is a query that is made by appending a question mark to the highest level command of a group The controller can receive all of the settings in a group collectively by executing an upper level query Some upper l
62. L VALUE 1 gt 103 79E400 e When lt gt is omitted NUMERIC NORMAL VALUE gt 103 79E 00 1 0143E 00 105 27E 0 0 omitted 50 001E 00 When NUMeric FORMat is set to FLOat NUMERIC NORMAL VALUE N N digit byte number data byte Sequence Description If lt NRf gt is specified only the numeric data for the specified item is output e If NRf is omitted the numeric data items from 1 to the number specified by the NUMeric NORMal NUMber command are output in order Forthe formats of each individual numeric data output item see Numeric Data Formats at the end of this group of commands page 6 24 NUMeric NORMal NUMber Function Sets or queries the number of numeric data items that are transmitted by the NUMeric NORMal VALue command Syntax NUMeric NORMal NUMber lt NRf gt ALL NUMeric NORMal NUMber NRf 1 to 255 ALL NUMERIC NORMAL NUMBER 10 NUMERIC NORMAL NUMBER NUMERIC NORMAL NUMBER 10 Description If the parameter is omitted from the NUMeric NORMal VALue command the numeric data items from 1 to the specified value are output in order By default the number of numeric data items is set to 10 Example 6 18 IM WT310 17EN 6 11 NUMeric Group 1 lt gt Function Sets or queries the specified numeric data output item function element and harmonic order Syntax NUM
63. MERIC LIST ITEM1 0 1 P PHIU PHII UHDF Example Description This is only valid on models with the harmonic measurement G5 option For details on Function options see Function Option List 2 at the end of this group of commands page 6 23 NUMeric LIST PRESet Function Presets the harmonic measurement numeric list data output item pattern Syntax NUMeric LIST PRESet NRf lt NRf gt 1 to 4 Example NUMERIC LIST PRESET 1 Description This is only valid on models with the harmonic measurement G5 option For information about the output items that are preset see 2 Preset Patterns for Harmonic Measurement Numeric List Data Output Items on page 6 27 at the end of the commands for this group By default the output items of Pattern 2 are selected NUMeric LIST CLEar Function Clears harmonic measurement numeric list data output items sets the items to NONE NUMeric LIST CLEar ALL lt NRf gt lt NRf gt Syntax ALL Clear all items First NR 1 to 32 the number of the first item to clear Second lt gt 1 to 32 the number of the last item to clear Example NUMERIC LIST CLEAR ALL Description This is only valid on models with the harmonic measurement G5 option Ifthe 2nd lt NRf gt is omitted the output item specified by the first number and all following output items up to number 32 are cleared NUMeric LIST DELete Function Del
64. OFF Current INPut CURRent POJump OFF No jump destination current range Current See INPut CURRent RANGe INPUT CURRENT POJUMP 20A INPUT CURRENT POJUMP gt INPUT CURRENT POJUMP 20 0E 00 INPut CURRent EXTSensor CONFig Function Sets or queries the valid external current sensor range Syntax INPut CURRent EXTSensor CONFig ALL lt Voltage gt Voltage 1 lt gt 1 INPut CURRent EXTSensor CONFig ALL All ranges are valid Voltage See INPut CURRent RANGe Example INPUT CURRENT EXTSENSOR CONFIG ALL INPUT CURRENT EXTSENSOR CONFIG gt INPUT CURRENT EXTSENSOR CONFIG ALL INPUT CURRENT EXTSENSOR CONFIG 2 0 5 0 1 INPUT CURRENT EXTSENSOR CONFIG gt INPUT CURRENT EXTSENSOR CONFIG 2 00E 00 500 0E 03 100 0E 03 6 12 IM WT310 17EN 6 7 INPut Group Description In the parameters list the external current sensor ranges that you want to enable To enable all the ranges specify the parameter ALL INPut CURRent EXTSensor POJump Function Sets or queries the jump destination range that is used when current peak over range occurs Syntax INPut CURRent EXTSensor POJump OFF Voltage INPut CURRent EXTSensor POJump OFF No jump destination current range Voltage See INPut CURRent RANGe INPUT CURRENT EXTSENSOR POJUMP 2V INPUT CURRENT EXTSENSOR POJUMP gt
65. ONFig INPut CURRent POJump INPut CURRent EXTSensor CONFig INPut CURRent EXTSensor POJump INPut SCALing Function Queries all scaling settings Syntax INPut SCALing INPut SCALing STATe Function Sets or queries the scaling on off state Syntax INPut SCALing STATe lt 1 gt INPut SCALing STATe INPUT SCALING STATE OFF INPUT SCALING STATE gt INPUT SCALING STATE 0 INPut SCALing VT CT SFACtor Function Queries the VT ratios CT ratios or power coefficients of all elements Syntax INPut SCALing VT CT SFACtor INPut SCALing VT CT SFACtor ALL Function Collectively sets the VT ratio CT ratio or power coefficient of all elements Syntax INPut SCALing VT CT SFACtor ALL lt gt 20 001 to 9999 Example INPUT SCALING VT ALL 1 INPut SCALing VT CT SFACtor ELEMent lt x gt Function Sets or queries the VT ratio CT ratio or power coefficient of the specified element Syntax INPut SCALing VT CT SFACtor ELEMent x lt gt INPut SCALing VT CT SFACtor ELEMent x x 110 3 element lt gt 20 001 to 9999 Example INPUT SCALING VT ELEMENT1 1 INPUT SCALING VT ELEMENT 1 gt INPUT SCALING VT ELEMENT1 1 000 INPut SYNChronize Function Sets or queries the synchronization source Syntax INPut SYNChronize VOLTage CURRent OFF
66. OPT Queries the installed options 6 34 RST Initializes the settings 6 34 SRE Sets or queries the service request enable register value 6 34 STB Queries the Status Byte Register value 6 34 TRG Executes single measurement the same operation as when SINGLE 6 34 SHIFT HOLD is pressed TST Executes a self test and queries the result 6 35 Holds the execution of the subsequent command until the completion of the 6 35 specified overlap command 6 4 IM WT310 17EN 6 2 AOUTput Group The commands in this group deal with D A output You can make the same settings and queries that you can by pressing the UTILITY key on the front panel and then using the dA menu or by pressing the INTEG SET key and then using the dAtimE menu The commands in this group are only valid on models with the D A output DA4 or DA12 option AOUTput Function Queries all D A output settings Syntax AOUTput AOUTput NORMal PRESet Function Sets the D A output items to their default values Syntax AOUTput NORMal PRESet NORMal INTEGrate Example AOUTPUT NORMAL PRESET NORMAL AOUTput 1 CHANnel lt x gt Function Sets or queries a D A output item function or element Syntax AOUTput NORMal CHANnel x NONE lt Function gt lt Element gt AOUTput NORMal CHANnel lt x gt lt gt 1 to 12 output channel NONE no output item lt Function gt U P S Q LAMBda PHI
67. T210 W230 Compatible WT300 Series Mode Mode Sets or queries the harmonic HARMonics DISPlay ORDer A order of the harmonic component that is shown in display B for the harmonic measurement data display Sets or queries the harmonic A All elements are subject to measurement source element harmonic measurement so setting this is not necessary Sets or queries the on off state HARMonics STATe A HARMonics DISPlay STATe of harmonic measurement mode Sets or queries the PLL source HARMonics SYNChronize A 0 HARMonics PLLSource Sets or queries the equation HARMonics THD A HARMonics THD used to compute the THD total FUNDamental TOTal harmonic distortion IM WT310 17EN 8 3 ejqneduio OEZTLM OLZLM 8 1 WT210 W230 Compatible Mode INTEGrate Group NN Sets or queries the integration INTEGrate MODE A mode WT300 Series Command WT210 W230 Compatible Resets the integrated value INTEGrate RESet A 2 Starts integration INTEGrate STARt Stops integration INTEGrate STOP A Sets or queries the integration INTEGrate TIMer timer value WT300 Series Mode MATH Group Function Sets or queries the equation of MATH ARIThmetic A four arithmetic operations A Sets or queries the average active power computation while integration is in progress Sets or queries the crest factor MATH CFACto
68. TEM COMMUNICATE ETHERNET MACADDRESS 000064 809 413 Description This command is only valid on models with the Ethernet interface C7 option 6 32 IM WT310 17EN 6 17 Common Command Group The commands in this group are defined in IEEE 488 2 1992 and are independent from the instrument s individual functions There are no front panel keys that correspond to the commands in this group CAL Function Syntax Example Description CLS Function Syntax Example Description ESE Function Syntax Example Description Executes zero calibration zero level compensation the same operation as pressing CAL SHIFT SET and queries the result CAL CAL gt 0 If the zero level compensation ends normally 0 is returned If an error is detected 1 is returned Clears the standard event register extended event register and error queue CLS CLS Ifthe CLS command is located immediately after the program message terminator the output queue is also cleared For information about each register and queue see chapter 7 Sets or queries the standard event enable register ESE lt gt ESE 010255 ESE 251 ESE gt 251 Specify the value as a sum of the values of each bit in decimal format For example specifying ESE 251 will cause the standard enable register to be set to 11111011 In this case bit 2 of the standard event register is disabled This mean
69. WT310 WT310HC WT332 WT333 Digital Power Meter Communication Interface USER S MANUAL YOKOGAWA Yokogawa Meters amp Instruments Corporation IM WT310 17EN 2nd Edition Thank you for purchasing the WT310 WT310HC WT332 WT333 Digital Power Meter hereinafter WT300 series will refer to all of these products This Communication Interface User s Manual explains the following interface features and commands USBinterface GP IB interface RS 232 interface Ethernet interface To ensure correct use please read this manual thoroughly before beginning operation After reading this manual keep it in a safe place The following manuals including this one are provided as manuals for the WT300 series Please read all manuals Manual Title Manual No Description WT310 WT310HC WT332 WT333 IM WT310 01EN The manual explains all the WT300 series features Digital Power Meter User s Manual except for the communication interface features and how to use them WT310 WT310HC WT332 WT333 IM WT310 02EN Provided as a printed manual The manual Digital Power Meter explains the handling precautions and basic Getting Started Guide operations of the WT300 series and provides an overview of its features WT310 WT310HC WT332 WT333 WT310 17EN This guide This manual explains the WT300 Digital Power Meter series communication interface features and how Communication Interface User s Manual to use them PDF files o
70. a response of 0 indicates appropriate range A response of 64 indicates that a current over range is occurring 7654 3210 API AOAH AL VPIVOVH VL VL The voltage is at 3096 of the rated range or less VOLTAGE LED color cyan VH The voltage exceeds 130 of the rated range VOLTAGE LED color yellow VO The voltage is over range exceeds 14096 of the rated range VOLTAGE LED color magenta VP The voltage is peak over range VOLTAGE LED color red AL The current is at 3096 of the rated range or less CURRENT LED color cyan The current exceeds 130 of the rated range CURRENT LED color yellow The current is over range exceeds 140 of the rated range CURRENT LED color magenta AP The current is peak over range CURRENT LED color red 1 On the WT310HC the current is determined to be over range when it exceeds 100 of the maximum current range 40 A range 2 On the WT310HC the current is determined to be over range when it exceeds 11096 of the maximum current range 40 A range 6 14 IM WT310 17EN 6 8 INTEGrate Group The commands in this group deal with integration You can make the same settings and queries that you can make by pressing INTEG SET START STOP and RESET on the front panel INTEGrate Function Queries all integration settings Syntax INTEGrate INTEGrate MODE Function Sets or queries the integra
71. ak Minimum current I pk A pk Yes Yes PPPeak Maximum power P pk W pk Yes Yes PMPeak Minimum power P pk W pk Yes Yes TIME Integration time TIME No Yes WH Watt hour WP Wh Yes Yes WHP Positive watt hour WP W hz Yes Yes WHM Negative watt hour WP W hz Yes Yes AH Ampere hour q Ah Yes Yes AHP Positive ampere hour q A h4 Yes Yes AHM Negative ampere hour q A hx Yes Yes MATH Computed value such as efficiency MATH No Yes UTHD Total harmonic distortion of voltage Uthd THD V 96 Yes Yes ITHD Total harmonic distortion of current Ithd THD A Yes Yes Yes Required No Not required Applicable command DISPlay HARMonics ITEM x lt Function gt lt Element gt lt Function gt Function WT Indicator lt Element gt WT Displays A B D 1 2 3 4 ORDer Harmonic order or 01 No Yes U Voltage U IV Yes Yes Current I A Yes Yes Yes P Active power P Yes Yes PHIU Phase difference between harmonic voltage U k and the V Yes Yes fundamental wave U 1 PHII Phase difference between harmonic current and the A Yes Yes fundamental wave 1 1 UHDF Harmonic voltage distortion factor Uhdf V Yes Yes IHDF Harmonic current distortion factor Ihdf A Yes Yes PHDF Harmonic active power distortion factor Phdf W 96 Yes Yes LAMBda Power factor of fundamental signal 1 PF Yes Yes FU Voltage frequency fU V Hz Yes Y
72. an use are indicated in the following table Symbol Word Multiplier EX Exa 1018 PE Peta 1015 T Tera 1072 G Giga 109 108 Kilo 103 M Milli 103 U Micro 105 10 9 10 72 Femto 1075 lt Unit gt Units that you can use are indicated in the following table Symbol Word Meaning V Volt Voltage A Ampere Current 5 Multiplier and Unit are not case sensitive U is used to indicate micro is used for Mega to distinguish it from Milli However is interpreted as milliampere for current If both lt Multiplier gt and Unit are omitted the basic unit V A or S is used Response messages are always expressed in the lt NR3 gt form Additionally they are returned in the basic form without a multiplier or unit attached 5 6 IM WT310 17EN 5 4 Data Register Register indicates an integer and can be expressed in hexadecimal octal or binary as well as a decimal number This is used when each bit of the value has a particular meaning The following types of expressions are possible Form Example lt NRf gt 1 H lt Hexadecimal value made up of 0 to 9 and A to F gt HOF Q lt Octal value made up of 0 to 7 0777 B lt Binary value made up of 0 and 1 18001100 Register is not case sensitive Response messages are always expressed in the lt 1 gt f
73. ation IM WT310 17EN How to Use This Manual Symbols and Conventions Used in Procedural Explanations In chapters 1 to 4 the contents of the procedural explanations are indicated using the following symbols 11 Operations are explained using flowcharts See the example below for an explanation of how various operations are indicated All procedures are written under the assumption that you are starting operation at the beginning of the procedure so you may not need to carry out all the steps in a procedure when you are changing the settings Example Operations for setting the GP IB address Select the communication function Set the address Display B 3 Display D 6 INTERFACE 5 LP h SET Adde SET A m Set close menu _ 4 Press and A to set the number 5 Press SHIFT to move the digit The above flow chart indicates the following operations You can configure items that are blinking 7 Press INTERFACE A menu appears in display B Use A or to select GPib Pressing either key cycles through 4 menu items Press SET to confirm the selection of GPib The GPib function menu that you selected in step 2 appears in display D Use A or V to select the GP IB address If necessary press the SHIFT key so that it illuminates and then press to move the input digit Press SET to confirm the setting and return the menu displ
74. ax MEASure AVERaging STATe lt 1 gt MEASure AVERaging STATe Example MEASURE AVERAGING STATE ON MEASURE AVERAGING STATE MEASURE AVERAGING STATE 1 MEASure AVERaging TYPE Function Sets or queries the averaging type Syntax MEASure AVERaging TYPE LINear EXPonent MEASure AVERaging TYPE Example MEASURE AVERAGING TYPE LINEAR MEASURE AVERAGING TYPE MEASURE AVERAGING TYPE LINEAR Description The averaging of harmonic measurement functions option is only valid when the type is set to EXPonent For details see the User s Manual IM WT310 01EN AVERaging COUNt Function Sets or queries the averaging coefficient Syntax MEASure AVERaging COUNt lt NRf gt MEASure AVERaging COUNt lt gt 8 16 32 64 moving average count or attenuation constant Example MEASURE AVERAGING COUNT 8 MEASURE AVERAGING COUNT MEASURE AVERAGING COUNT 8 Description The averaging of harmonic measurement functions option is only valid when TYPE is set to EXPonent attenuation constant For details see the User s Manual IM WT310 01EN IM WT310 17EN 6 17 6 11 NUMeric Group The command in this group deal with numeric data output There are no front panel keys that correspond to the commands in this group The commands the DISPlay group are used to make the same settings and queries as the FUNCTION and ELEMENT keys on the
75. ay to the measurement data display The selected or set item is confirmed when you press SET When you are making a number positive no sign or negative or setting a number when the digit in the display that the input will be added to is blank an underscore flashes at the position of the digit While you are performing menu operations to leave the menu display press HOLD ESC All setting changes that you have confirmed by pressing the SET key will be reflected in the settings This section describes the setup items and the limitations regarding the Symbol procedures s Used in the Syntax The following table contains the symbols that are used in the syntax discussed mainly in chapters 5 and 6 These symbols are referred to as BNF Backus Naur Form symbols For details on how to write data using these symbols see pages 5 6 and 5 7 Symbol Meaning Example Example of Input lt gt A defined value ELEMent x x 1103 ELEMENT2 Select an option in MODE RMS VMEan DC MODE RMS Exclusive OR 0 Can be omitted NUMeric NORMal VALue NUMERIC VALUE IM WT310 17EN Contents About the USB Interface and Ethernet Interface ii Sample Prodgratris iiir c re Lee ier e ee de Ra REL FR LY dde ga ii WT ViewerFreePlliS tome sau tva p ven ii Conventions Used in This
76. codes when errors occur USB Interface Specifications Item Specifications Number of ports 1 Connector Type B connector receptacle Electrical and mechanical Complies with USB Rev 2 0 Supported transfer modes HS High Speed 480 Mbps and FS Full Speed 12 Mbps Supported protocols USBTMC USBA88 USB Test and Measurement Class Ver 1 0 PC system requirements running Windows 7 32 bit 64 bit Vista 32 bit XP SP2 and later 32bit English and Japanese and with a USB port Switching between Remote and Local Modes When Switching from Local to Remote Mode The WT300 series switches to remote mode when it is in local mode and it receives a COMMunicate REMote ON command from the PC The REMOTE indicator illuminates All keys except the SHIFT LOCAL key are disabled Settings entered in local mode are retained even when the WT300 series switches to remote mode When Switching from Remote to Local Mode When the WT300 series is in remote mode and you press SHIFT LOCAL the WT300 series switches to local mode However this does not work if the WT300 series has received a COMMunicate LOCKout ON command from the PC The WT300 series switches to local mode when it receives a COMMunicate REMote OFF command from the PC regardless of the local lockout state The REMOTE indicator turns off Key operations are enabled Settings entered in remote mode are retained even when the WT300 series switches to
77. d by a controller Rear Panel mar X vomer G2 E TW mema WARNING GP IB port This port is for connecting the WT300 series to a controller such as a PC using a GP IB cable For details on how to connect see page 2 4 IM WT310 17EN 2 1 GP IB Interface Features and Specifications GP IB Interface Features Reception Feature You can use the reception feature to specify the same settings that you specify by using the front panel keys Output requests for measured and computed data panel setup parameters and error codes can be received Transmission Feature The WT300 series can transmit measured and computed data The WT300 series can transmit panel setup parameters and the status byte The WT300 series can transmit error codes when errors occur Note Talk only listen only and controller capabilities are not available GP IB Interface Specifications Item Specifications Supported devices National Instruments Corporation PCI GPIB or PCI GPIB PCle GPIB or PCle GPIB PCMCIA GPIB or PCMCIA GPIB not supported on Windows Vista or Windows
78. data This negotiation is called handshaking Because there are many handshaking methods that can be used between the WT300 series and the PC you must make sure that the same method is chosen by both the WT300 series and the PC You can choose any of handshaking methods shown below NO NO XON XON CS RS Sending data to the PC Receiving data from the PC Software Hardware No Software Hardware No Handshaking Handshaking handshaking Handshaking Handshaking handshaking Stop sending when Stop sending when Send X OFF when Set CA RTS to X OFF is received CB CTS is false the receive buffer is false when the resume when X ON resume when it is 3 4 full send X ON receive buffer is is received when it is 1 4 full 3 4 full set CA RTS to it is 1 4 full Hano s Hand 0 SS Hannz Ys 2 OFF OFF Data Transmission Control There is handshaking between the WT300 series and the PC The X OFF and signals are treated as data and the CS signal is ignored Data Reception Control There is no handshaking between the WT300 series and the PC When the receive buffer is full excessive data is discarded RS is fixed to true XON XON Data Transmission Control Software handshaking is performed between the WT300 series and the PC When the WT300 series receives an X OFF code from the PC while it is sending data it stops the data
79. e SRE lt gt SRE lt gt 0 to 255 SRE 239 SRE 175 because the bit 6 MSS setting is ignored Specify the value as a sum of the values of each bit in decimal format For example specifying SRE 239 will cause the standard enable register to be set to 11101111 In this case bit 4 of the service request enable register is disabled This means that bit 4 MAV of the status byte register is not set to 1 even if the output queue is not empty Bit 6 MSS of the status byte register is the MSS bit itself and is therefore ignored The default value is 0 all bits disabled Aquery using SRE will not clear the contents of the service request enable register For information about the service request enable register see page 7 3 Queries the Status Byte Register value STB STB gt 4 Asum of the values of each bit is returned as a decimal value Because the register is read without executing serial polling bit 6 is an MSS bit not an ROS bit For example if a value of 4 is returned this indicates that the status byte register is set to 00000100 This means that the error queue is not empty in other words an error occurred Aquery using STB will not clear the contents of the status byte register For information about the status byte register see page 7 3 Executes single measurement the same operation as when SINGLE SHIFT HOLD is pres
80. e P M Queries the communication MEASure NORMaI NUMeric NORMal output setting of the specified lt measurement normal measurement function function gt WT300 Series Mode NUMeric NORMal PRESet NUMeric NORMal ITEM lt x gt 1 NUMeric FORMat ASCii FLOat been set with commands that start with MEASure 2 NUMeric NORMal VALue RECall Group Function WT210 W230 Command WT300 Series Command WT210 W230 Compatible Mode D The function for recalling D to the WT300 series screen is not available Loads a setup parameter file _ RECall PANel Sets or queries the recall RECall S TATe The function for recalling on off state to the WT300 series Screen is not available RELay Group WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode Sets or queries the comparator RELay No comparator function function SAMPle Group WT300 Series Mode Sets or queries the recall RECall INTerval interval WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode n D Sets or queries the output data SAMPlIe HOLD display communication etc hold state Sets or queries the display SAMPIe RATE A A RATE update interval IM WT310 17EN 8 5 OEZTLM OLZLM 8 1 WT210 W230 Compatible Mode STATus Group Function WT210 W230 Comma
81. e Where the syntax contains lt NR3 gt make the exponent 5 6 that follows E smaller Chapter 6 124 Too many digits Limit numeric values to 255 digits or less 5 6 and Chapter 6 128 Numeric data not allowed Use a data type other than lt NRf gt 5 6 and Chapter 6 131 Invalid suffix Check the unit of Voltage Current Time or 5 6 lt Frequency gt 134 Suffix too long Check the unit of lt Voltage gt lt Current gt lt Time gt or 5 6 lt Frequency gt 138 Suffix not allowed Only the following units can be used lt Voltage gt 5 6 lt Current gt lt Time gt lt Frequency gt 141 Invalid character data Be sure to select one of the listed choices when the Chapters 5 syntax contains and 6 144 Character data too long Check the spelling of the strings when the syntax Chapter 6 contains 148 Character data not allowed Use a data type other than Chapter 6 150 String data error Enclose parameters with single or double quotation 5 7 marks where the syntax contains String IM WT310 17EN App 1 xipueddy Appendix 1 Error Messages Code Message Corrective Action Page 151 Invalid string data The parameter is either too long or it contains an Chapter 6 unusable character 158 String data not allowed Use a data type other than String Chapter 6 161 Invalid block data
82. e functional or composite header elements constituting a command See chapters 5 and 6 Buffer sizes that affect block data transmission When block data is being transmitted the output queue is expanded to match the size of the data that is being transmitted 8 9 10 11 12 A list of program data elements that can be used in equations and their nesting limitations Equations cannot be used Syntax of the responses to queries See the example of the commands given in chapter 6 Communication between devices that do not follow the response syntax Not supported Size of the response data block 0 to 24576 bytes A list of supported common commands See section 6 17 Command Group 13 Device condition after a successful calibration 14 15 16 17 18 19 20 21 22 23 The device will be performing measurements The maximum length of block data that can be used for the DDT trigger macro definition Not supported The maximum length of the macro label for defining macros the maximum length of block data that can be used for the macro definition and the process when recursion is used in macro definitions Macro functions are not supported Reply to the IDN query See section 6 17 Command Group Size of storage area for protected user data for PUD and PUD PUD and PUD are not supported The length of the RDT and RDT r
83. e reet eae 6 5 DA o tputitems te der xr hn ne 6 5 WETTER 5 6 data ONMa ss ccce eet cer 3 8 data update interval zs DOL Device Clear iru et e eere deadlOGK rrr cn herb t renes 5 2 default gateway 4 5 DHCP 4 5 6 7 display resolution e cct Pe 6 32 ii E Page Emor MOSSaQ S ie casae te eet App 1 error queue Ethernet interface criteri tane nasse en G Page GET Group Execute Trigget 2 2 rice 2 7 GP3IB addre85 crc e eee eats 2 6 EE 2 4 2 2 handshaklng eee pore ea mee pd 3 6 harmonic 22 6 9 harmonic order IFC Interface Clear 2 aret treat 2 7 rene 6 34 input filter integration iio ioi eco cimo Pe e ens integration Stant integration cc ette sexes integration mode x integration timer porca rae eoe ree odds IP addres Sirrin men ener er t eir K Page key n iege 6 32 L library line filter local lockout ineens eei rro ree 6 6 M Page MAG address iret et eret re
84. e sent from the controller to the WT300 series are called program messages and messages that are sent from the WT300 series back to the controller are called response messages If a program message contains a command that requests a response a query the WT300 series returns a response message upon receiving the program message The WT300 series returns a single response message in response to a single program message Program Messages The program message format is shown below O lt Program message unit gt lt PMT gt lt Program Message Unit gt A program message consists of one or more program message units Each unit corresponds to one command The WT300 series executes the commands in the order that they are received Separate each program message unit with a semicolon For details on the program message syntax see the next section Example INPut MODE ub CFACtor 3 PMT Unit Unit PMT This is a program message terminator The following three types are available NL new line Same as LF line feed ASCII code END The END message as defined by IEEE 488 1 The data byte that is sent with the END message is the last data byte of the program message NL with an END message attached NL is not included in the program message NL END Program Message Unit Syntax The program message unit syntax is shown below Program data
85. ent at the same point in time use the following commands NUMeric HOLD NUMeric NORMal ITEM1 U 1 ITEM2 1 13 Set the numeric data items of element 1 NUMeric NORMal VALue Receive the numeric data of element 1 NUMeric NORMal ITEM1 U 2 ITEM2 1 2 Set the numeric data items of element 2 NUMeric NORMal VALue Receive the numeric data of element 2 NUMeric NORMal ITEM1 U 3 ITEM2 1 3 Set the numeric data items of element 3 NUMeric NORMal VALue Receive the numeric data of element 3 NUMeric HOLD OFF If NUMeric HOLD is set to ON after having already been set to ON before the numeric data is cleared and the most recent numeric data is held internally When retrieving numeric data continuously this method can be used to circumvent the need to repeatedly set NUMeric HOLD to OFF 6 22 IM WT310 17EN 6 11 NUMeric Group Function Option List Settings That Can Be Used for lt Function gt 1 Numeric data functions Applicable commands NUMeric NORMal ITEM x NONE lt Function gt lt Element gt lt Order gt AOUTput NORMal CHANnel lt x gt NONE lt Function gt lt Element gt lt Function gt Function WT Indicator Element lt Order gt U Voltage U V Yes No Current A Yes N
86. ere For details on other error messages see the User s Manual IM WT310 02EN Communication syntax errors Communication execution errors Device specific and other errors Communication query errors System errors communication Information 1 to 99 Execution Errors 600 to 899 System Errors 100 to 199 200 to 299 300 to 399 400 to 499 300 399 J 1 to 99 B 600 to 899 900 to 999 7 Listed below gt Listed in section 6 2 of the User s Manual IM WT310 02EN Communication Syntax Errors 100 to 199 Error in communication command Code Message Corrective Action Page 102 Syntax error A syntax error not covered by error codes 100 to 199 Chapters 5 and 6 103 Invalid separator Separate data values with a comma 5 1 104 Data type error See page 5 6 and 5 7 and use the correct data type for 5 6 and each parameter 5 7 108 Parameter not allowed Check the number of data values 5 6 and chapter 6 109 Missing parameter Be sure to include all necessary data values 5 6 and chapter 6 111 Header separator error Use comma to separate each header from its data 5 1 112 Program mnemonic too long Check the command length Chapter 6 113 Undefined header Check the header Chapter 6 114 Header suffix out of range Check the header Chapter 6 120 Numeric data error A value must be specified where the syntax contains 5 6 123 Exponent too larg
87. eric NORMal ITEM x NONE lt Function gt lt Element gt lt Order gt NUMeric NORMal ITEM lt x gt lt x gt 1 to 255 item number NONE No output item Function UIIIPISIQI Element NRf SIGMA lt NRf gt 1 to 3 Order TOTal DC lt NR gt lt NRf gt 1 to 50 Example NUMERIC NORMAL ITEM1 0 1 NUMERIC NORMAL ITEM1 gt NUMERIC NORMAL ITEM1 0 1 NUMERIC NORMAL ITEM1 UK 1 1 NUMERIC NORMAL ITEM1 NUMERIC NORMAL ITEM1 UK 1 1 Description For details on Function options see Function Option List 1 at the end of this group of commands page 6 23 f Element is omitted the element is set to 1 f Order is omitted the order is set to TOTal Element and Order are omitted from responses to functions that do not need them The WT300 series does not measure data for Order DC NUMeric NORMal PRESet Function Presets the numeric data output item pattern Syntax NUMeric NORMal PRESet lt NRf gt lt gt 21104 Example NUMERIC NORMAL PRESET 1 Description For information about the output items that are preset see 1 Preset Patterns for Numeric Data Items on page 6 25 at the end of the commands for this group By default the output items of Pattern 2 are selected NUMeric NORMal CLEar Function Syntax Example NUMeric NORMal CLEar ALL lt NRf gt lt NRf
88. es Current frequency fl A Hz Yes Yes UTHD Total harmonic distortion of voltage Uthd THD V 96 Yes Yes ITHD Total harmonic distortion of current Ithd THD A 96 Yes Yes Yes Required No Not required 6 8 IM WT310 17EN 65 HARMonics Group The commands in this group deal with harmonic measurement You can make the same settings and queries that you can make by pressing HARMONICS on the front panel The commands in this group are valid only on models with the harmonic measurement G5 option HARMonics Function Queries all harmonic measurement settings Syntax HARMonics HARMonics PLLSource Function Sets or queries the PLL source Syntax HARMonics PLLSource U lt x gt I lt x gt HARMonics PLLSource lt gt 1403 element HARMONICS PLLSOURCE 01 HARMONICS PLLSOURCE gt HARMONICS PLLSOURCE 01 Example HARMonics ORDer Function Sets or queries the maximum and minimum harmonic orders that are analyzed Syntax HARMonics ORDer lt gt lt gt HARMonics ORDer First NR 1 minimum harmonic order that is analyzed fixed at 1 Second NR 1 1050 maximum harmonic order that is analyzed HARMONICS ORDER 1 50 HARMONICS ORDER gt HARMONICS1 ORDER 1 50 Example HARMonics THD Function Sets or queries the equation used to compute the THD total harmonic distortion Syntax HARMonics THD TOTa
89. es the storage on off state Syntax STORe STATe lt 1 gt STORe STATe Example STORE STATE ON STORE STATE STORE STATE 1 STORe INTerval Function Sets or queries the storage interval Syntax STORe INTerval lt gt lt gt lt gt STORe INTerval lt NRf gt lt NRf gt lt NRf gt 0 0 0 to 99 59 59 First NR 0 to 99 hours Second NR 0 to 59 minutes Third NR 0 to 59 seconds Example STORE INTERVAL 0 0 0 STORE INTERVAL gt STORE INTERVAL 0 0 0 STORe 1 Function Saves setup parameters to file Syntax STORe PANel lt gt lt gt 1 to 4 file number Example STORE PANEL 1 IM WT310 17EN 6 31 6 16 SYSTem Group The commands in this group deal with the system You can make the same settings and queries that you can by pressing the UTILITY key on the front panel and then using the inFo or rESo menu or by pressing the KEY PROTECT or INTERFACE key SYSTem Function Queries all system settings Syntax SYSTem SYSTem MODe1 Function Queries the model code Syntax SYSTem MODel Example SYSTEM MODEL SYSTEM MODEL WT310 Description Returns the Model item of the Utility gt Info menu SYSTem SUFFix Function Queries the suffix code Syntax SYSTem SUFFix Example SYSTEM SUFFIX gt SYSTEM SUFFIX D C1 C7 EX1 G5 DA4 Description Retu
90. esource names RDT and RDT are not supported The change in the status due to RST LRN RCL SAV and RST See section 6 17 Command Group LRN RCL and SAV These common commands are not supported The extent of the self test using the TST command See section 6 17 Command Group The structure of the extended return status See chapter 7 Whether each command is processed in an overlapped manner or sequentially See section 5 5 Synchronization with the Controller and chapter 6 The description of the execution of each command See the explanations of each command s function in chapter 6 and the User s Manual WT310 WT310 17EN 5 xipueddy H Index A Page abbreviated eer een rtr oco ie 5 5 5 ERES 2 2 addressable mode can 2 2 AUTO IIR 6 11 6 12 averaging asi esee ae 6 17 B Page ALC RR UCM 3 8 block data trn x vitas rn era 5 7 5 7 check range 6 14 COMMAND ees command mode 2191191 072 ess RE common command 2 5 3 Computation function eter tege ce eae 6 16 condition register ecce tte rye en pe e 6 30 crest factor D Page D A iine oe i
91. ete 6 32 MAX hold deme n 6 17 measurement mode 6 11 messages 6 1 model 6 32 6 33 model COG 6 32 extended event 2 2 external event enable register external sensor conversion ratio m external sensor tange F Page Page fil Tia a etie cec Hr tetro RH e ect 6 32 3 6 frequency filter 6 14 option 6 34 front panel 1 1 2 1 3 1 4 1 output queue 7 6 Tunction selection oce ree emnes 6 23 overlap command eee one te rec e a 5 8 IM WT310 17EN Index 1 v o Index P Page V Page ovet range cce itera ci ere 6 14 redire iere 6 32 25 5 6 power factor voltage range 6 11 m 6 13 Q EVE TID 6 11 eg 5 1 WT210 W230 itn et ep cor 8 1 WTViewerFreePlus reni rin tes ii R Page range configuration tte ce tert eter 6 13 range skip 6 19 XONEXOD ndn eee tcr dere ze 3 6 rear panel 1 1 2 1 3 1 4 1 Registered i ene ae 5 7 7 gb
92. etes harmonic measurement numeric list data output items NUMeric LIST DELete NRf NRf 1st lt gt 1 to 32 the number of the first item to delete Second lt gt 1 to 32 the number of the last item to delete NUMERIC LIST DELETE 1 Deletes ITEM1 and shifts ITEM2 and subsequent items forward NUMERIC LIST DELETE 1 3 Deletes ITEM1 to ITEM3 and shifts ITEM4 and subsequent items forward Description This is only valid on models with the harmonic measurement G5 option When output items are deleted subsequent items shift forward to fill the empty positions Empty positions at the end are set to NONE If the second is omitted only the output item specified by the first number is deleted Syntax Example IM WT310 17EN 6 21 6 11 NUMeric Group NUMeric HOLD Function Syntax Example Sets or queries the on off hold release status of the numeric data hold feature NUMeric HOLD lt Boolean gt NUMeric HOLD NUMERIC HOLD NUMERIC HOLD NUMERIC HOLD 1 Description If NUMeric HOLD is set to ON before NUMeric NORMal VALue or NUMeric LIST VALue is executed all the numeric data at that point in time can be held internally As long as NUMeric HOLD is set to ON numeric data is held even when the numeric data on the screen is updated For example if you wish to retrieve various types of numeric data from each elem
93. evel queries of a group which may be comprised of more than three hierarchical levels can cause the WT300 series to transmit all the lower level settings Example INTEGrate PMT INTEGRATE MODE NORMAL TIMER 0 0 0 RMT The response to an upper level query can be sent back to the WT300 series as a program message This enables the settings that were present when the upper level query was made to be reproduced later on However some upper level queries do not return setup parameters that are not currently in use Exercise caution because not all of a group s information is necessarily returned in a response Header Interpretation Rules The WT300 series interprets the header that it receives according to the rules below Mnemonics are not case sensitive Example INPut can also be written as input or INPUT The lower case characters can be omitted Example INPut can also be written as INPu or INP The question mark at the end of a header indicates that it is a query You cannot omit the question mark Example The shortest abbreviation for INPut is If the x value the end of a mnemonic is omitted it is interpreted as a 1 Example If ELEMent is written as ELEM it means ELEMent1 Parts of commands and parameters enclosed in square brackets can be omitted Example INPut SCALing STATe ON can be w
94. f all the manuals above are included in the accompanying CD Notes The contents of this manual are subject to change without prior notice as a result of continuing improvements to the instrument s performance and functionality The figures given in this manual may differ from those that actually appear on your screen Every effort has been made in the preparation of this manual to ensure the accuracy of its contents However should you have any questions or find any errors please contact your nearest YOKOGAWA dealer Copying or reproducing all or any part of the contents of this manual without the permission of YOKOGAWVA is strictly prohibited e Safety precautions are provided in the Getting Started Guide WT310 02EN Be sure to observe the safety precautions The TCP IP software of this product and the documents concerning it have been developed created by YOKOGAWA based on the BSD Networking Software Release 1 that has been licensed from the Regents of the University of California Trademarks Microsoft Internet Explorer MS DOS Windows Windows NT Windows XP Windows Vista and Windows 7 are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Adobe and Acrobat are either registered trademarks or trademarks of Adobe Systems Incorporated nthis manual the and symbols do not accompany their respective registered trademark or trademark names
95. fications 275 Macro definition too long The WT300 series does not support the IEEE 488 2 macro specifications 276 Macro recursion error The WT300 series does not support the IEEE 488 2 macro specifications 277 Macro redefinition not allowed The WT300 series does not support the IEEE 488 2 macro specifications 278 Macro header not found The WT300 series does not support the IEEE 488 2 macro specifications App 2 IM WT310 17EN Appendix 1 Error Messages Communication Query Errors 400 to 499 Error in communication Query Code Message Corrective Action Page 410 Query INTERRUPTED Check the transmission and reception order 5 2 420 Query UNTERMINATED Check the transmission and reception order 5 2 430 Query DEADLOCKED Keep program messages to 1024 bytes or less in length 5 2 including lt gt 440 Query UNTERMINATED after indefinite response Do not write a query after IDN or OPT System Communication Errors 300 and 399 Error in System Operation Code Message Corrective Action Page 300 Communication device specific error Servicing is required 399 Fatal error in the communication driver Servicing is required Communication Warning 50 Warning Code Message Corrective Action Page 50 OPC exists in message Write OPC or OPC at the end of program messages Other Errors 350 390 Code Message Corrective Action Page 350 Queue ove
96. g the procedure below Select the communication function 1 Display B INTERFACE or 2 3 ESC ELHEF 9 Displays gt HOLD show the IP address Close menu Configuring the TCP IP Settings To use the Ethernet interface you must specify TCP IP settings DHCP DHCP is a protocol that temporarily allocates necessary information to a device so that it can connect to the Internet ON If you are connecting the WT300 series to a network with a DHCP server you can turn on the DHCP setting If you do the IP address will be automatically assigned to the WT300 series when it is connected to the network so you do not have to set the address OFF If you set DHCP to OFF set the appropriate IP address subnet mask and default gateway for your network IP Address Subnet Mask and Default Gateway The IP address subnet mask and default gateway appear in the following positions on the WT300 series displays IP address display example IP address 192 168 0 100 Applying the Settings The TCP IP settings are applied when You select EXEC on the Bind menu and press SET You restart the WT300 series IM WT310 17EN 4 5 39UJ9U13 Chapter 5 5 1 Messages Programming Overview Messages Messages are used to exchange information between the controller and the WT300 series Messages that ar
97. ge on off state 6 31 STORe INTerval Sets or queries the storage interval 6 31 STORe 1 Saves setup parameters to file 6 31 SYSTem Group SYSTem Queries all system settings 6 32 SYSTem MODel1 Queries the model code 6 32 SYSTem SUFFix Queries the suffix code 6 32 SYSTem SERial Queries the serial number 6 32 SYSTem VERsion FIRMware Queries the firmware version 6 32 SYSTem Sets or queries the on off state of the key protection 6 32 SYSTem RESolution Sets or queries the numeric data display resolution 6 32 SYSTem COMMunicate COMMand Sets or queries the command type 6 32 SYSTem COMMunicate ETHernet Sets or queries the Ethernet MAC address 6 32 MACaddress IM WT310 17EN spueululo2 6 1 List of Commands Command Function Page Common Command Group CAL Executes zero calibration zero level compensation the same operation as 6 33 pressing CAL SHIFT SET and queries the result CLS Clears the standard event register extended event register and error queue 6 33 ESE Sets or queries the standard event enable register 6 33 ESR Queries and clears the standard event register 6 33 IDN Queries the instrument model 6 33 OPC Sets bit 0 the OPC bit of the standard event register to 1 upon the 6 33 completion of the specified overlap command OPC Returns ASCII code 1 if the specified overlap command has finished 6 34
98. he WT300 series so that full headers are returned Use the COMMunicate VERBose command for this purpose The sections enclosed in square brackets 1 are also omitted in the abbreviated form WT310 17EN Buruiure1604gd 5 4 Data Data Data contains conditions and values that are written after the header A space separates the data from the header Data is classified as follows Data Description Decimal A value expressed in decimal notation Example VT ratio setting INPut SCALing VT 100 Voltage Current physical value Time Example Voltage range setting INPut VOLTage RANge 150V Register A register value expressed as binary octal decimal or hexadecimal Example Extended event register value gt STATUS EESE Character data Predefined character string mnemonic Select from the available strings in braces Example Measurement mode selection gt INPut MODE RMS VMEan DC lt Boolean gt Indicates on and off Specify ON OFF ora value Example Turning data hold on gt HOLD ON lt String data gt An arbitrary character string Example Model code response gt SYSTEM MODEL WT310 lt Block data gt response Data that contains 8 bit values Example Measured data binary format 40012ABCDEFGHIJKL lt Decimal gt lt Decimal gt indicates a value expressed as a
99. hen a device is designated as a listener and some are valid when it is designated as a talker The following five commands are available Commands available to a device designated as a listener GTL Go To Local SDC Selected Device Clear PPC Parallel Poll Configure GET Group Execute Trigger Commands available to a device designated as a talker TCT Take Control Universal Commands Universal commands are available to all devices regardless of their listener or talker designation The following five commands are available LLO Local Lockout DCL Device Clear PPU Parallel Poll Unconfigure SPE Serial Poll Enable SPD Serial Poll Disable There are other interface messages listener address talk address and secondary commands Interface messages Multi line Messages r Uni ine messages r Address Universal commands commands IFC REN GTL LLO IDY SDC DCL PPC PPU GET SPE TCT SPD Listener Talker 2 Address Address Command The WT300 series supports interface messages marked with a Note Difference between SDC and DCL In multi line messages SDC messages are those that require talker or listener designation and DCL messages are those that do not require a designation Therefore SDC messages are directed at a particular instrument while DCL messages are directed at all instruments on
100. hort Using the Extended Event Register The changes in the condition register can be reflected in the extended event register see page 6 5 for details Example STATus FILTerl FALL STATus ESE 1 EESR SRE 8 lt gt Read the response to STATus EESR Loop Wait for a service request NUMeric NORMal VALue PMT Read the response to NUMeric NORMal VALue STATus EESR PMT Read the response to STATus EESR Return to Loop The STATus FILTerl FALL command sets the transition filter so that bit O in the extended event FILTer1 is set to 1 when bit 0 in the condition register changes from 1 to 0 in other words when the updating of measured data is finished The STATus EESE 1 command is used to only change the status byte based on bit 0 in the extended event register The STATus EESR command is used to clear the extended event register The SRE 8 command is used to generate service requests based only on the changes in the extended event register bits The NUMeric NORMal VALue command is not executed until a service request is generated Using the COMMunicate WAIT Command The COMMunicate WAIT command is used to wait for a specific event to occur Example STATus FILTerl FALL STATus EESR PMT Read the response to STATus EESR Loop COMMunicate WAIT 1 lt gt
101. ies the jump destination range that is used when a current peak 6 13 POJump over range occurs INPut CURRent SRATio Queries the external current sensor conversion ratios of all elements 6 13 INPut CURRent SRATio ALL Collectively sets the external current sensor conversion ratios of all elements 6 13 INPut CURRent SRATio Sets or queries the external current sensor conversion ratio of the specified 6 13 ELEMent lt x gt element INPut RCONfig Sets or queries the on off state of the range configuration valid range 6 13 selection feature INPut SCALing Queries all scaling settings 6 13 INPut SCALing STATe Sets or queries the scaling on off state 6 13 INPut Queries the VT ratios CT ratios or power coefficients of all elements 6 13 INPut SCALing VT CT SFACtor SCALing VT CT SFACtor ALL Collectively sets the VT ratio CT ratio or power coefficient of allelements 6 13 INPut Sets or queries the VT ratio CT ratio or power coefficient of the specified 6 13 SCALing VT CT SFACtor element ELEMent lt x gt INPut SYNChronize Sets or queries the synchronization source 6 13 NPut FILTer Queries all input filter settings 6 14 NPut FILTer LINE Sets or queries the line filter 6 14 INPut FILTer FREQuency Sets or queries the frequency filter 6 14 NPut POVer Queries
102. ilable WT Menu Data Parity Stop bits length Foro 8 Fort 1 Select from the following baud rates 1200 2400 4800 9600 19200 38400 57600 Select the terminator to use when sending data from the WT300 series Cr Lf Cr Lf Use LF or Cr Lf for the terminator when sending data to the WT300 series WT310 17EN Chapter 4 Ethernet Interface 4 1 Component Names and Functions Front Panel UTILITY key page 4 4 Press this key to configure TCP IP settings YOKOGAWA WT330 rover Owo Ow Ooms ox 1 2 e ex lo Eo 4 9 Eo 5 M W TIME BRBBBB esi DIGITAL POWER METER k A gum amem mM Wm _ AN EG GO D O GJ MW mV VA T T k BBBBBSE wa e UE A det tma bran O O O 2 Ci M W mE O O O 9 9 hw a Vermont l M m V PF suxcnow comme D 1 2 SHIFT E BBBBBSE s FUNCTION ELEMENT 6 6 Eo 4 9 5 MW lo lo fo 4 lo jJMW m V Pk La g AL BEBBBRB lI o Eo Eo Eo MW ht INTERFACE 0 ESS POWER m V PF pe
103. is in local mode and it receives a REN Remote Enable message from the PC The REMOTE indicator illuminates All keys except the SHIFT LOCAL key are disabled Settings entered in local mode are retained even when the WT300 series switches to remote mode When Switching from Remote to Local Mode When the WT300 series is in remote mode and you press SHIFT LOCAL the WT300 series Switches to local mode This key is disabled when local lockout see page 2 7 has been activated by a controller The REMOTE indicator turns off Key operations are enabled Settings entered in remote mode are retained even when the WT300 series switches to local mode Note You cannot use the GP IB interface simultaneously with other interfaces USB and Ethernet interfaces IM WT310 17EN 2 3 2 3 Connecting to the GP IB Interface GP IB Cable The WT300 series is equipped with an IEEE St d 488 1978 24 pin GP IB connector Use a GP IB cable that conforms to this standard Connection Procedure Connect the cable as shown below WT310 WT310HC WT332 WT333 Notes on Connection Firmly tighten the screws on the GP IB cable connector On the PC end use a GP IB board or card made by National Instruments For details see section 2 2 The WT300 series may not operate properly if the WT300 series is connected to the PC through converters such as a GP IB to USB converter For more detai
104. is read only the RQS bit is cleared You cannot read the MSS bit when serial polling is used Clearing the Status Byte There is no way to clear all the bits in the status byte The bits that are cleared for each operation are shown below STB query None of the bits are cleared Serial polling Only the 5 bit is cleared e When a CLS command is received When a CLS command is received the status byte itself is not cleared but the contents of the standard event register which affects the bits in the status byte are cleared As a result the corresponding status byte bits are cleared Because the output queue is not cleared with a CLS command bit 4 MAV in the status byte is not affected However the output queue will be cleared if the CLS command is received just after a program message terminator IM WT310 17EN syuodey snjejs E 7 3 Standard Event Register Standard Event Register 6 E 413121110 Bit 7 PON Power ON This bit is set to 1 when the instrument is turned on Bit 6 User Request Not used always 0 Bit5 CME Command Error This bit is set to 1 when there is a command syntax error Example Command names are misspelled or character data that is not one of the available options has been received Bit4 EXE Execution Error This bit is set to 1 when the command syntax is correct bu
105. l FUNDamental HARMonics THD Example HARMONICS THD FUNDAMENTAL HARMONICS THD HARMONICS THD FUNDAMENTAL HARMonics DISPlay Function Queries all harmonic measurement display settings Syntax HARMonics DISPlay HARMonics DISPlay STATe Function Sets or queries the on off state of harmonic measurement data display Syntax HARMonics DISPlay STATe lt Boolean gt HARMonics DISPlay STATe HARMONICS DISPLAY STATE HARMONICS DISPLAY STATE gt HARMONICS DISPLAY STATE 1 Example HARMonics DISPlay ORDer Function Sets or queries the harmonic order of the harmonic component that is shown in display B for the harmonic measurement data display Syntax HARMonics DISPlay ORDer lt NRf gt HARMonics DISPlay ORDer lt NR gt 1 to 50 harmonic order HARMONICS DISPLAY ORDER 1 HARMONICS DISPLAY ORDER HARMONICS DISPLAY ORDER 1 Example WT310 17EN 6 9 6 6 HOLD Group The command in this group deals with the output data hold feature You can make the same settings and queries that you can make by pressing HOLD on the front panel HOLD Function Sets or queries the on off state of the output hold feature for display communication and other types of data Syntax HOLD lt Boolean gt HOLD Example HOLD OFF HOLD gt HOLD 0 6 10 IM WT310 17EN 6 7 INPut Group The commands in this gr
106. list data output items 6 21 NUMeric HOLD Sets or queries the on off hold release status of the numeric data hold 6 22 feature RATE Group RATE Sets or queries the data update interval 6 28 RECall Group RECall NUMber Queries the number of blocks of measured data that is stored 6 29 RECall NORMal VALue Queries the numeric data at the specified block number 6 29 RECall LIST VALue Queries the numeric list data of harmonic measurement at the specified 6 29 block number RECall PANel Loads a setup parameter file 6 29 TATus group STATus Queries all the settings for the communication status feature 6 30 STATus CONDition Queries the contents of the condition register 6 30 STATus EESE Sets or queries the extended event enable register 6 30 STATus EESR Queries the contents of the extended event register and clears the register 6 30 STATus ERRor Queries the error code and message of the last error that has occurred top 6 30 of the error queue STATus FILTer lt x gt Sets or queries the transition filter 6 30 STATus QENable Sets or queries whether messages other than errors will be stored to the 6 30 error queue ON or not OFF STATus OMESsage Sets or queries whether message information will be attached to the 6 30 response to the STATus ERRor query ON OFF STATus SPOL1 Executes serial polling 6 30 STORe Group STORe Queries all storage settings 6 31 STORe STATe Sets or queries the stora
107. local mode Note You cannot use the USB interface simultaneously with other interfaces GP IB RS 232 and Ethernet interfaces 1 2 IM WT310 17EN 1 3 Connecting to the USB Interface Connection Procedure Connect the cable as shown below WT310 WT310HC WT332 WT333 Notes on Connection Be sure to insert the USB cable connectors firmly into the USB ports f you are connecting multiple devices by using a USB hub connect the WT300 series to the USB hub port that is closest to the port that the controller is connected to Do not connect or remove USB cables from the time when the WT300 series is turned on until operation becomes available approximately 20 to 30 seconds Doing so may damage the WT300 series Onthe WT310 and WT310HC it is physically impossible to connect a GP IB cable and a USB cable at the same time IM WT310 17EN 1 3 e eyieju JSN 1 4 Configuring the WT300 Series USB Settings This section explains the following setting for controlling the WT300 series remotely through a USB interface Procedure Follow the procedure indicated by the thick lines in the following menu Viewing the serial number that is used USB communications Select the communication function Display B INTERFACE e 4 u 54 9 Instrument number gt HOLD is shown in displays Close menu f L Note Only use one communication interface USB
108. ls contact your nearest YOKOGAWA dealer Several cables can be used to connect multiple devices However no more than 15 devices including the controller can be connected on a single bus When connecting multiple devices you must assign a unique address to each device Use cables that are 2 m or shorter in length to connect devices Make sure the total length of all cables does not exceed 20 m When devices are communicating have at least two thirds of the devices on the bus turned on To connect multiple devices use a star or daisy chain configuration as shown below Loop and parallel configurations are not allowed On the WT310 and WT310HC it is physically impossible to connect a GP IB cable and a USB cable at the same time 2 4 IM WT310 17EN 2 3 Connecting to the GP IB Interface CAUTION Be sure to turn off the PC and the WT300 series before you connect or remove communication cables Otherwise erroneous operation may result or the internal circuitry may break IM WT310 17EN 2 5 2 4 Configuring the WT300 Series GP IB Settings This section explains the following setting for controlling the WT300 series remotely through a GP IB interface Procedure Follow the procedure indicated by the thick lines in the following menu Setting the GP IB
109. mputations You can make the same settings and queries that you can by pressing SETUP on the front panel and using the MAtH menu MATH Function Sets or queries the MATH equation Syntax EFFiciency CFU lt x gt CFI lt x gt ADD SUB MUL DIV DIVA DIVB AVW lt x gt MATH x of CFU CFI 1 to 3 element x of AVW 1 to 3 element 4 2 Example MATH CFU1 MATH gt MATH CFU1 Description The equations that correspond to each option are as follows EFFiciency Efficiency valid only on the WT332 WT333 CFU Voltage crest factor CFI Current crest factor ADD A B SUB MUL AxB DIV DIVA 2 DIVB A 2 B AVW Average active power during integration 6 16 IM WT310 17EN 6 10 MEASure Group The commands in this group deal with computation You can make the same settings and queries that you can by pressing SETUP on the front panel and using the AVG menu or by pressing MAX HOLD on the front panel MEASure MEASure MHOLd Function Queries all measured and computed data output Function Sets the MAX hold on off state settings Syntax MEASure MHOLd lt Boolean gt Syntax MEASure MEASure MHOLd Example MEASURE MHOLD ON MEASure AVERaging MEASURE MHOLD gt MEASURE MHOLD 1 Function Queries all averaging settings Syntax MEASure AVERaging MEASure AVERaging STATe Function Sets or queries the on off state of averaging Synt
110. mputed data The WT300 series can transmit panel setup parameters and the status byte The WT300 series can transmit error codes when errors occur Ethernet Interface Specifications Item Specifications Electrical and mechanical IEEE802 3 Simultaneous connections 2 Communication protocol TCP IP VXI 11 Connector type RJ 45 Switching between Remote and Local Modes When Switching from Local to Remote Mode The WT300 series switches to remote mode when it is in local mode and it receives a COMMunicate REMote ON command from the PC The REMOTE indicator illuminates All keys except the SHIFT LOCAL key are disabled Settings entered in local mode are retained even when the WT300 series switches to remote mode When Switching from Remote to Local Mode When the WT300 series is in remote mode and you press SHIFT LOCAL the WT300 series switches to local mode However this does not work if the WT300 series has received a COMMunicate LOCKout ON command from the PC The WT300 series switches to local mode when it receives a COMMunicate REMote OFF command from the PC regardless of the local lockout state The REMOTE indicator turns off Key operations are enabled Settings entered in remote mode are retained even when the WT300 series switches to local mode Note You cannot use the Ethernet interface simultaneously with other interfaces GP IB RS 232 and USB 4 2 IM WT310 17EN
111. nd WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode register event enable register Queries the contents of the EESR extended event register and clears the register Queries the error code and STATus ERRor message of the last error that has occurred top of the error Sets or queries the transition STATus FILTer lt x gt filter lt x gt 1 to 16 Sets or queries whether STATus QMESsage message information will be attached to the response to the STATus ERRor query Executes serial polling STATusSPOLI 2 STORe Group Function WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode Sets or queries the storage STORe INTerval Cannot be set with a string Cannot be set with a string interval file Sets or queries the storage STORe STATe A A on off state Common Command Group Function WT210 W230 Command WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode Performs zero level compensation GENE EN and queries the result Clears the standard event CLS register and error queue event enable register ELS standard event register Queries the model information AO Sets or queries whether TPSC registers will be cleared at on ERE ff req uest enable register Register value Executes the same operation p as the TRI
112. nic order NUMeric NORMal PRESet Presets the numeric data output item pattern 6 19 NUMeric NORMal CLEar Clears numeric data output items sets the items to NONE 6 19 IM WT310 17EN 6 1 List of Commands Command Function Page NUMeric NORMal DELete Deletes numeric data output items 6 19 NUMeric NORMal HEADer Queries the numeric data header 6 19 NUMeric LIST Queries all harmonic measurement numeric list data output settings 6 20 NUMeric LIST VALue Queries the harmonic measurement numeric list data 6 20 NUMeric LIST NUMber Sets or queries the number of numeric list data items that are transmitted by 6 20 NUMeric LIST VALue NUMeric LIST ORDer Sets or queries the maximum output harmonic order of the harmonic 6 20 measurement numeric list data NUMeric LIST SELect Sets or queries the output components of the harmonic measurement 6 20 numeric list data NUMeric LIST ITEM lt x gt Sets or queries the output item function and element of the specified 6 21 harmonic measurement numeric list data item NUMeric LIST PRESet Presets the harmonic measurement numeric list data output item pattern 6 21 NUMeric LIST CLEar Clears harmonic measurement numeric list data output items sets the items 6 21 to NONE NUMeric LIST DELete Deletes harmonic measurement numeric
113. nicate VERBose Sets or queries whether the response to a query is returned fully spelled out 6 6 or in its abbreviated form COMMunicate WAIT Waits for a specified extended event to occur 6 6 COMMunicate WAIT Creates the response that is returned when a specified extended event 6 6 occurs DISPlay group S DISPlay Queries all display settings 6 7 3 DISPlay NORMal Queries all normal measurement data display settings 6 7 5 DISPlay NORMal ITEM lt x gt Sets or queries a normal measurement data display item 6 7 9 DISPlay HARMonics Queries all harmonic measurement data display settings 6 7 DISPlay HARMonics ITEM lt x gt Sets or queries a harmonic measurement data display item 6 7 HARMonics Group HARMonics Queries all harmonic measurement settings 6 9 HARMonics PLLSource Sets or queries the PLL source 6 9 HARMonics ORDer Sets or queries the maximum and minimum harmonic orders that are 6 9 analyzed HARMonics THD Sets or queries the equation used to compute the THD total harmonic 6 9 distortion HARMonics DISPlay Queries all harmonic measurement display settings 6 9 HARMonics DISPlay STATe Sets or queries the on off state of harmonic measurement data display 6 9 HARMonics DISPlay ORDer Sets or queries the harmonic order of the harmonic component that is shown 6 9 in display B for the harmonic measurement data display
114. no data The output items and format are the same as those of NUMeric NORMal VALue when the item number is not specified To set the output items and format use the NUMeric group commands RECall LIST VALue Function Queries the numeric list data of harmonic measurement at the specified block number Syntax RECall LIST VALue lt NRf gt 1 to 600 block number Description This is only valid on models with the harmonic measurement G5 option Always specify lt NRf gt The numeric list data at the specified block number will be returned f you omit lt NRf gt or specify a number greater than the number of blocks that contain stored measured data the number returned by RECall NUMber the entire returned numeric list data will be no data The output items and format are the same as those of NUMeric LIST VALue when the item number is not specified To set the output items and format use the NUMeric group commands 11 1 Function Loads a setup parameter file Syntax RECall PANel lt NRf gt lt gt 1404 number IM WT310 17EN 6 29 6 14 STATus group The commands in this group are used to make settings and queries related to the status report There are no front panel keys that correspond to the commands in this group For information about status reports see chapter 7 5 5 F
115. o P Active power P W Yes No S Apparent power S VA Yes No Q Reactive power Q var Yes No LAMBda Power factor PF Yes No PHI Phase difference Yes No FU Voltage frequency fU V Hz Yes No Current frequency fl A Hz Yes No UPPeak Maximum voltage U pk V pk Yes No UMPeak Minimum voltage U pk V pk Yes No IPPeak Maximum current A pk Yes No IMPeak Minimum current I pk A pk Yes No PPPeak Maximum power P pk W pk Yes No PMPeak Minimum power W pk Yes No TIME Integration time TIME No No WH Watt hour WP W h Yes No WHP Positive watt hour WP W hx Yes No WHM Negative watt hour WP W hx Yes No AH Ampere hour q A h Yes No AHP Positive ampere hour q A ht Yes No AHM Negative ampere hour q A ht Yes No MATH Computed value such as efficiency MATH No No URANge Voltage range No No IRANge Current range No No URMS True rms voltage Urms Yes No UMN Rectified mean voltage calibrated to the rms value Umn Yes No UDC Simple voltage average Udc Yes No URMN Rectified mean voltage Urmn Yes No UAC AC voltage component Uac Yes No IRMS True rms current Irms Yes No IMN Rectified mean current calibrated to the rms value Imn Yes No IDC Simple current average Idc Yes No IRMN Rectified mean current Irmn Yes No IAC AC current component lac Yes No Functions used in AOUTput NORMal CHANnel lt x gt UPeak Voltage peak Upk V pk Yes No IPeak Current peak lpk A pk Yes No Functions that require the harmonic mea
116. o 32 NONE ESet command IM WT310 17EN 6 27 6 12 RATE Group The command in this group deals with the data update interval You can make the same settings and queries that you can by pressing SETUP on the front panel and using the u rAtE menu RATE Function Sets or queries the data update interval Syntax RATE Time RATE Time 100 250 500 ms 1 2 5 s Example RATE 250 5 RATE gt RATE 250 0 03 6 28 IM WT310 17EN 6 13 RECall Group The commands in this group deal with outputting stored measured data and loading setup parameters You can make the same settings that you can by pressing SAVE LOAD on the front panel and using the LoAd menu There are no front panel keys that output measured data that is stored 11 NUMber Function Queries the number of blocks of measured data that is stored Syntax RECall NUMber Example RECALL NUMBER gt 600 RECall NORMal VALue Function Queries the numeric data at the specified block number Syntax RECall NORMal VALue lt NRf gt lt NRf gt 1 to 9000 block number Description Always specify lt NRf gt The numeric data at the specified block number will be returned f you omit lt NRf gt or specify a number greater than the number of blocks that contain stored measured data the number returned by RECall NUMber the entire returned numeric data will be NAN
117. on U I P LAMBda PHI Function of display C lt gt 3 Function U I P UPPeak UMPeak IPPeak IMPeak PPPeak PMPeak WH WHM AH AHP AHM Function of display D lt x gt 4 Function U I P LAMBda FU FT UTHD ITHD Element lt NRf gt SIGMA lt gt 1 to 3 DISPLAY NORMAL 1 0 1 DISPLAY NORMAL 1 gt DISPLAY NORMAL ITEM1 0 1 Description For details on Function see Numeric Data Display Functions on the next page Syntax z Example f Element is omitted the element is set to 1 For TIME MATH Element does not need to be specified In responses Element is omitted UTHD ITHD can be selected only on models with the harmonic measurement G5 option DISPlay HARMonics Queries all harmonic measurement data display Function Syntax settings DISPlay HARMonics DISPlay HARMonics ITEM lt x gt Sets or queries a harmonic measurement data Function Syntax Example Description display item DISPlay HARMonics ITEM lt x gt lt Function gt lt Element gt DISPlay HARMonics ITEM lt x gt 110 4 display Function of display A lt x gt 1 lt Function gt U Function of display B lt Function gt U HIU PHII Function of display y Function of display Function U D U lt Function gt UT
118. onfiguring the WT300 Series Ethernet Settings essen 4 4 Programming Overview 5 1 Messages RIETI DUI TT IET TOC DL IEEE RENE 5 1 5 2 COMMANGS E 5 3 5 3 RESPONSES 5 5 5 4 Data stint 5 6 5 5 Synchronization with the Controller e ecce ete dica 5 8 Commands 6 1 List ot 6 1 6 2 AOUT PUL Group 6 5 6 3 COMMUNICATE GEO 6 6 6 4 DISPlay group xiii iiie i ei 6 7 6 5 HARMONICS GOUD sets ERE 6 9 6 6 6 10 6 7 6 11 6 8 INTEGrate net EE odo ih oA irte 6 15 6 9 MATH CI ens 6 16 6 10 GROUP sie eae 6 17 6 11 NUMERIC GOUD ccinn e 6 18 IM WT310 17EN Contents 6 12 RATE Group U 6 28 6 13 REGall GIoUp scio URDU etuer teretes 6 29 NT SMEDAPIUCESD
119. orm Character Data Character Data is a specified string of character data a mnemonic It is mainly used to indicate options and is chosen from the character strings given in The data interpretation rules are the same as those described in Header Interpretation Rules on page 5 4 Form Example RMS VMEan DC RMS As with the header the COMMunicate VERBose command can be used to select whether to return the response in the full form or in the abbreviated form The COMMunicate HEADer setting does not affect Character data Boolean Boolean is data that indicates ON or OFF The following types of expressions are possible Form Example ON OFF NR ON OFF 1 0 When is expressed in the form OFF is selected if the rounded integer value is 0 and is selected for all other cases Aresponse message is always returned with a 1 if the value is ON and with a 0 if the value is OFF String Data String data is not a specified character string like Character data It is an arbitrary character string The character string must be enclosed in single quotation marks or double quotation marks Form Example String data ABC IEEE488 2 1992 character string contains a double quotation mark the double quotation mark is expressed as two consecutive quotation marks This rule also applies to single
120. oup deal with the measurement conditions of the input elements You can make the same settings and queries that you can by pressing the WIRING MODE VOLTAGE CURRENT or UTILITY key on the front panel and then using the CF or rAnGE menu or by pressing the SETUP key and then using the SCALE rAtio SYnC L FiLt or F FiLt menu INPut Function Queries all input settings Syntax INPut INPut CFACtor Function Sets or queries the crest factor Syntax INPut CFACtor lt NRf gt INPut CFACtor lt gt 3 6 Example INPUT CFACTOR 3 INPUT CFACTOR gt INPUT CFACTOR 3 INPut WIRing Function Sets or queries the wiring system INPut WIRing P1W2 P1W3 P3W3 P3W4 V3A3 INPut WIRing P1W2 Single phase two wire system 1P2W P1W3 Single phase three wire system 1P3W P3W3 Three phase three wire system 3P3W Syntax P3W4 Three phase four wire system 3P4W V3A3 Three phase three wire system with a three voltage three current method 3V3A INPUT WIRING P1W3 INPUT WIRING gt INPUT WIRING P1W3 Description For the WT310 WT310HC the wiring System is fixed to P1W2 No other setting is allowed Forthe WT332 and WT333 the wiring system cannot be set to P1W2 Example INPut MODE Function Sets or queries the voltage and current measurement mode Syntax INPut MODE RMS VMEan DC INPut MODE Example INPUT MODE RMS INPUT MODE gt
121. queries the additional information output on off state for when outputting measured computed data in binary format Queries all settings related to the communication output items of normal measurement data MEASure HEADer Setting and querying are possible but setting this command to ON will not cause additional information to be output NUMeric NORMal NUMeric NORMal 8 4 IM WT310 17EN 8 1 WT210 W230 Compatible Mode Function WT210 W230 Command Sets the communication output MEASure NORMalI ITEM on off states of all normal measurement functions to a preset pattern at once Sets the communication output MEASure NORMal on off state of the specified normal ITEM normal measurement measurement function on all valid function ALL elements or 2 at once Sets or queries the communication output on off state of the specified normal measurement function on the specified element Sets or queries the communication output on off state of the specified normal measurement function on 7 Sets or queries the communication output on off state of elapsed integration Queries the normal measurement data that has MEASure NORMaI ITEM normal measurement function ELEMent x MEASure NORMal ITEM lt normal measurement function gt SIGMa MEASure NORMal ITEM TIME MATH MEASure NORMal VALue MEASure NORMal BINary WT300 Series Command WT210 W230 a
122. r A equation A Sets or queries the computation type MEASure Group Function Queries all settings related to the communication output items of harmonic measurement data Sets the communication output MEASure HARMonics ITEM on off states of all harmonic measurement functions to a preset pattern at once Sets or queries the communication output on off state of a harmonic measurement function Queries the harmonic measurement data that has been set with commands that start with MEASure HARMonics ITEM B be set with a string WT300 Series Command WT210 W230 Compatible Mode WT210 W230 Command MATH AVERage WT210 W230 Command EFFiciency CFU lt x gt CFI lt x gt ADD SUB MUL DIV DIVA DIVB AVW lt x gt EFFiciency Efficiency lt gt lt gt Voltage and current crest factor lt x gt 1 to 3 element Average active power during integration x 1 to 3 element 4 2 WT300 Series Command WT210 W230 Compatible WT300 Series Mode Mode lc measurement data settings MEASure HARMonics ITEM MEASure HARMonics ITEM harmonic measurement function gt SYNChronize MEASure HARMonics VALue MEASure HARMonics BlNary A NUMeric LIST ITEM lt x gt NUMeric LIST PRESet NUMeric LIST ITEM lt x gt 1 NUMeric FORMat ASCii FLOat 2 NUMeric LIST VALue Sets or
123. rflow Read the error queue 5 6 390 Overrun error RS 232 only Decrease the baud rate 3 8 Note Code 350 occurs when the error queue overflows This error is only returned in response to a STATus ERRor query it is never displayed on the screen IM WT310 17EN App 3 xipueddy H Appendix 1 Error Messages Information 1 to 99 Code Message Corrective Action Page 3 80 87 The system has been initialized For descriptions of errors and their corrective actions see section 6 2 in the User s Manual IM WT310 01EN Execution Errors 600 to 899 Code Message Corrective Action Page 759 Failed to initialize network Check the network settings Chapter 4 832 Internal memory access error For descriptions of errors and their corrective actions 841 to 847 Integrator execute error see section 6 2 in the User s Manual IM WT310 01EN Other than Invalid operation those above 812 813 823 840 865 System Errors 900 to 999 Code Message Corrective Action Page 901 915 919 System error For descriptions of errors and their corrective actions see section 6 2 in the User s Manual IM WT310 01EN App 4 IM WT310 17EN Appendix 2 About the IEEE 488 2 1992 Standard The WT300 series s GP IB interface conforms to the IEEE 488 2 1992 standard This standard specifies that the following 23 items be stated in the document This section describes these items 1 2 3
124. ries does not have overlap commands The OPC bit is always set to 1 IM WT310 17EN 6 33 6 17 Common Command Group OPC Function Syntax Example Description OPT Function Syntax Example Description RST Function Syntax Example Description Returns ASCII code 1 if the specified overlap command has finished OPC gt The WT300 series does not have overlap commands 1 is always returned Queries the installed options OPT OPT gt 1 7 1 65 4 This command returns whether the GP IB C1 RS232 C2 Ethernet communication C7 external current sensor input EX1 2 5 V 5 V 10 V external current sensor input EX2 50 mV 100 mV 200 mV 500 mV 1 2 V harmonic measurement G5 4 channel DA output for the WT310 and WT310HC and 12 channel DA output DA12 for the WT332 WT333 are available The OPT query must be the last query of a program message An error occurs if there is a query after the OPT query Initializes the settings RST RST All settings except communication settings are reset to their factory default values For details on initialization see section 8 2 in the User s Manual IM WT310 01EN SRE Function Syntax Example Description STB Function Syntax Example Description TRG Function Syntax Example Description Sets or queries the service request enable register valu
125. ritten as SCAL ON However the last section enclosed in square brackets cannot be omitted in an upper level query Example SCALing and SCALing STATe are different queries 5 4 IM WT310 17EN 5 3 Responses Response When the controller sends a message unit that has a question mark in its program header a query the WTS300 series returns a response message to the query The WT300 series returns response messages in one of the following two forms Response Consisting of a Header and Data Responses that can be used as program messages without any changes are returned with command headers attached Example INTEGrate MODE PMT gt INTEGRATE MODE NORMAL lt RMT gt Response Consisting Only of Data Responses that cannot be used as program messages unless changes are made query only commands are returned without headers However there are query only commands whose responses the WT300 series will attach headers to Example INTEGrate STATe PMT gt RESET lt RMT gt If You Want the WT300 series to Return Responses without Headers You can configure the WT300 series so that even responses that have both headers and data are returned without headers Use the COMMunicate HEADer command for this purpose Abbreviated Form The WT300 series normally returns response headers with the lower case section removed You can configure t
126. rns the Suffix item string of the Utility gt Info menu SYSTem SERial Function Queries the serial number Syntax SYSTem SERial Example SYSTEM SERIAL SYSTEM SERIAL 123456789A Description Returns the No item string of the Utility gt Info menu SYSTem VERsion FIRMware Function Queries the firmware version Syntax S YSTem VERsion FIRMware Example SYSTEM VERSION FIRMWARE gt 1 01 Description Returns the Ver item string of the Utility gt Info menu SYSTem KLOCk Function Sets or queries the on off state of the key protection Syntax SYSTem KLOCk Boolean SYSTem Example SYSTEM KLOCK OFF SYSTEM KLOCK gt SYSTEM KLOCK 0 SYSTem RESolution Function Sets or queries the numeric data display resolution Syntax SYSTem RESolution NRf SYSTem RESolution lt gt 4 5 digit Example SYSTEM RESOLUTION 5 SYSTEM RESOLUTION SYSTEM RESOLUTION 5 SYSTem COMMunicate COMMand Function Sets or queries the command type Syntax SYSTem COMMunicate COMMand 1171300 17200 SYSTem COMMunicate COMMand Example SYSTEM COMMUNICATE COMMAND WT300 SYSTEM COMMUNICATE COMMAND SYSTEM COMMUNICATE COMMAND WT300 SYSTem COMMunicate ETHernet MACaddress Function Sets or queries the Ethernet MAC address Syntax SYSTem COMMunicate ETHernet MACaddress Example SYSTEM COMMUNICATE ETHERNET MACADDRESS SYS
127. s that bit 5 ESB of the status byte register is not set to 1 even if a query error occurs The default value is ESE 0 all bits disabled Aquery using ESE will not clear the contents of the standard event enable register For information about the standard event enable register see page 7 4 ESR Function Syntax Example Description IDN Function Syntax Example Description OPC Function Syntax Example Description Queries and clears the standard event register ESR ESR gt 32 Asum of the values of each bit is returned in decimal format When is sent you can check what types of events have occurred For example if a value of 32 is returned this indicates that the standard event register is set to 00100000 This means that the SRQ occurred due to a command syntax error Aquery using ESR will clear the contents of the Standard Event Register For information about the standard event register see page 7 4 Queries the instrument model IDN IDN gt YOKOGAWA WT310 123456789A F1 01 The information is returned in this form manufacture model serial number gt firmware version For details on the model see Checking the Package Contents in the Getting Started Guide IM WT310 02EN Sets bit 0 the OPC bit of the standard event register to 1 upon the completion of the specified overlap command OPC OPC The WT300 se
128. se fully spelled out INPUT VOLTAGE RANGE 150 0E 00 Example of a response in abbreviated form VOLT RANG 150 0 00 COMMunicate WAIT Function Waits for a specified extended event to occur Syntax COMMunicate WAIT Register Register 0 to 65535 extended event register See page 7 5 Example COMMUNICATE WAIT 1 Description For information about how to synchronize a program using COMMunicate WAIT see page 5 8 COMMunicate WAIT Function Creates the response that is returned when specified extended event occurs Syntax COMMunicate WAIT Register Register 0 to 65535 extended event register see page 7 5 Example COMMUNICATE WAIT 65535 gt 1 IM WT310 17EN 6 4 DISPlay group The commands in this group deal with the display You can make the same settings and queries that you can by using keys such as the FUNCTION and ELEMENT keys on the front panel DISPlay Function Queries all display settings Syntax DISPlay DISPlay NORMal Function Queries all normal measurement data display settings Syntax DISPlay NORMal 5 1 ITEM lt x gt Function Sets or queries a normal measurement data display item DISPlay NORMal ITEM x Function lt Element gt DISPlay NORMal ITEM lt x gt lt gt 1404 display Function of display A lt gt 1 Function U I P S Q TIME Function of display B lt gt 2 Functi
129. sed TRG TRG A multi line message GET Group Execute Trigger will perform the same operation as this command 6 34 WT310 17EN 6 17 Common Command Group TST Function Syntax Example Description WAI Function Syntax Example Description Executes a self test and queries the result TST TST gt 0 The self test consists of tests of each kind of internal memory This command returns 0 if the self test is successful and 1 if it is not t takes approximately 6 seconds for the test to complete When receiving a response from the WT300 series set the timeout to a relatively large value Holds the execution of the subsequent command until the completion of the specified overlap command WAI WAI The WT300 series does not have overlap commands This command will be ignored IM WT310 17EN 6 35 Chapter7 Status Reports 7 1 About Status Reports Status Reports The figure below shows the format of status reports that are read by serial polling This status report format is an extended version of the status report format defined in IEEE 488 2 1992
130. sured Data 1 ii IM WT310 17EN Conventions Used in This Manual Notes The notes and cautions in this manual are categorized using the following symbols Units Calls attention to actions or conditions that could cause serious or fatal CAUTION Note occurrences injury to the user and precautions that can be taken to prevent such Calls attention to actions or conditions that could cause light injury to the user or cause damage to the instrument or user s data and precautions that can be taken to prevent such occurrences Calls attention to information that is important for proper operation of the instrument Denotes 1000 Example 100 kHz Denotes 1024 Example 720 KB file size Characters That Appear on the 7 Segment LED Because this instrument uses a 7 segment LED display numbers letters and mathematical symbols are displayed using special characters in the manner shown below Some of the characters shown below are not used by this instrument 0 1 2g 334 434 5 gt 5 6 7 1 8H 9 9 gt B h C L Lowercase c gt Dod EE FF Goa Lowercase gt LL Nn On Rr 5 gt 5 Tt Uru Vou xil You Z z gt gt 11 gt exponenti
131. surement G5 option UK Rms voltage of harmonic order k U k IV Yes Yes IK Rms current of harmonic order A Yes Yes PK Active power of harmonic order k P k W Yes Yes LAMBDAK Power factor of harmonic order k A k PF Yes Yes 1 only PHIK Phase difference between the voltage and current V Yes Yes 1 only harmonic order or A PHIUK Phase difference between harmonic voltage U k and Yes Yes 2 and the fundamental wave U 1 higher PHIIk Phase difference between harmonic current IK and A Yes Yes k 2 and the fundamental wave 1 1 higher UHDFk Harmonic distortion factor of voltage Uhdf k V Yes Yes IHDFk Harmonic distortion factor of current Ihdf k A 96 Yes Yes PHDFk Harmonic distortion factor of active power Phdf k IW 96 Yes Yes UTHD Total harmonic distortion of voltage Uthd THD V 96 Yes No ITHD Total harmonic distortion of current Ithd THD A 96 Yes No IM WT310 17EN 6 23 6 11 NUMeric Group Function Function WT Indicator Element Order PLL source frequency fPLL V Hz No Hz No Yes Required No Not required 2 Numeric List Data Output Functions These functions require the harmonic measurement G5 option Applicable command NUMeric LIST ITEM x NONI lt Function gt lt Element gt Function Function
132. t it does not cause an SRQ set the corresponding bit of the service request enable register to 0 For example to mask bit 2 EAV so that service is not requested when an error occurs set bit 2 of the service request enable register to 0 Do this using the SRE command To query whether each bit of the service request enable register is 1 or 0 use SRE For details on the SRE command see chapter 6 Status Byte Operation A service request is issued when bit 6 in the status byte becomes 1 Bit 6 is set to 1 when any other bit becomes 1 when the corresponding bit of the service request enable register is also set to 1 For example if an event occurs and the logical OR of a standard event register bit and its corresponding enable register bit is 1 then bit 5 ESB is set to 1 At this point if bit 5 of the service request enable register is 1 bit 6 MSS is set to 1 and the WT300 series requests service from the controller You can check what type of event occurred by reading the contents of the status byte Reading the Status Byte There are two ways to read the contents of the status byte STB query Bit 6 functions as MSS when a query is made using STB This causes the MSS to be read This query does not cause any of the status byte bits to be cleared after the status byte is read Serial polling Serial polling causes bit 6 to function as an RQS bit This causes the RQS to be read After the status byte
133. t the command cannot be executed in the current state Example Parameters are out of range or a command has been received for an option that is not installed e Bit DDE Device Error This bit is set to 1 when a command cannot be executed for internal reasons other than a command syntax error or command execution error e Bit 2 QYE Query Error This bit is set to 1 when a query command is received but the output queue is empty or the data is lost Example There is no response data or data is lost due to an overflow in the output queue e Bit 1 Request Control Not used always 0 e Bit 0 OPC Operation Complete This bit is set to 1 upon the completion of the operation designated by the OPC command see chapter 6 for details Bit Masking To mask a certain bit of the standard event register so that it does not cause bit 5 ESB in the status byte to change set the corresponding bit of the standard event enable register to 0 For example to mask bit 2 QYE so that ESB will not be set to 1 even if a query error occurs set bit 2 of the standard event enable register to O Do this using the ESE command To query whether each bit of the standard event enable register is 1 or 0 use ESE For details on the ESE command see chapter 6 Standard Event Register Operation The standard event register indicates eight types of events that occur inside the instrument When
134. tion mode Syntax INTEGrate MODE NORMal CONTinuous INTEGrate MODE NORMa1 Standard integration mode CONT inuous Continuous integration mode Example INTEGRATE MODE NORMAL INTEGRATE MODE INTEGRATE MODE NORMAL INTEGrate TIMer Function Sets or queries the integration timer value Syntax INTEGrate TIMer lt NRf gt lt NRf gt lt NRf gt INTEGrate TIMer lt NRf gt lt NRf gt lt NRf gt 20 0 0 to 10000 0 0 First lt gt 0 to 10000 hours Second NR 0 to 59 minutes Third NR 0 to 59 seconds Example INTEGRATE TIMER 1 0 0 INTEGRATE TIMER gt INTEGRATE TIMER 1 0 0 INTEGrate STARt Function Starts integration Syntax INTEGrate STARt Example INTEGRATE START INTEGrate STOP Function Stops integration Syntax INTEGrate STOP Example INTEGRATE STOP INTEGrate RESet Function Resets the integrated value Syntax INTEGrate RESet Example INTEGRATE RESET INTEGrate STATe Function Queries the integration status Syntax INTEGrate STATe Example INTEGRATE STATE gt RESET Description The response is as follows RESet Integration reset STARt Integration in progress STOP Integration stop ERRor Abnormal integration termination integration overflow power failure TIMeup Integration stop due to integration timeout WT310 17EN 6 15 spuewwoy 69 MATH Group The commands in this group deal with co
135. unction Queries all the settings for the communication status feature Syntax STATus STATus CONDition Function Queries the contents of the condition register Syntax STATus CONDition Example STATUS CONDITION gt 16 Description For information about the condition register see chapter 7 Status Reports STATus EESE Function Sets or queries the extended event enable register Syntax STATus EESE Register STATus EESE Register 0 to 65535 STATUS EESE 0000000000000000 STATus EESE STATUS EESE 0 Description For information about the extended event enable register see chapter 7 Status Reports Example STATus EESR Function Queries the contents of the extended event register and clears the register Syntax STATus EESR Example STATUS EESR gt 0 Description For information about the extended event register see chapter 7 Status Reports STATus ERRor Function Queries the error code and message of the last error that has occurred top of the error queue Syntax STATus ERRor Example STATUS ERROR gt 113 Underfined Header Description If no errors have occurred 0 No error is returned You can use the STATus QMESsage command to specify whether the message is included STATus FILTer lt x gt Function Sets or queries the transition filter Syntax STATus FILTer x RISE FALL BOTH NEVer STATus FILTer lt x gt x 1 to

WT310/WT310HC/WT332/WT333 Digital Power Meter

Contents

Download Pdf Manuals

Related Search

Related Contents