Campbell 21X Betreibershandbuch

21X MICROLOGGEROPERATOR'S MANUALREVISION: 8/95CopynlcHT (c) 1994, 1995 CAMPBELL sclENTlFlc, lNc.

21 X MICROLOGGER OVERVIEWThe 9-pin serial l/O port provides connection todata storage peripherals, such as theSM192t16 Storage Module or RC35 Casset

SECTION 9. INPUT/OUTPUT INSTRUCTIONSTABLE 9-3. Thermocouple Type CodesCodeX1x2X3x4Thermocouple TvpeT (copper - constantan)E (chromel - constantan)K (

01:SECTION 9. INPUT/OUTPUT INSTRUCTIONS**" 17 TEMPERATURE OF INPUT PANEL ***FUNCTIONThis instruction measures the temperature indegrees Celsius o

*** 22 EXCITATION WITH DELAY ***FUNCTON IThis instruction is used in conjunction withothers for mfasuring a response to a timedexcitation using the s

SECTION 9. INPUT/OUTPUT INSTRUCTIONStrigger when measurement goes from above thelimit to below it or when the digital trigger goesfrom high to low. W

locationtable. l2of Instruction 23 in the programby 13 is the multiplier and 14 theSECTION 9. INPUT/OUTPUT INSTRUCTIONS'Bu rsUTelecommu nications

SECTION 9. INPUT/OUTPUT INSTRUCTIONSwhen donemeasuring.B Trigger option0 - Triggerimmediately1 - Trigger if abovelimit (high)2 - Trigger if belowlimi

02:03:04:05:06:07:08:09:*lnput configuration;channels 8,7,6,5*lnput configuration;channels 4,3,2,1**Function; channels 8,7,6,5**Function; channels 4,

01:02:03:SECTION 9. INPUT/OUTPUT INSTRUCTIONSlf the SW8A does not respond, -99999 will beloaded into input locations. Modules which donot respond whe

SECTION 10. PROCESSING INSTRUCTIONSTo facilitate qross referencing, parameterdescriptions pre keyed I to the values given onthe PROMPT SHEET. These v

SECTION 10. PROCESSING INSTRUCTIONS*** 36 XrY ***FUNCTIONMultiply the value in location X by the value inlocation Y and place the result in location

ovl.2EXCITATION OUTPUTSThe first fou numbered terminals on the lowerare the SWITCHED EXCITATIONterminalsupply programmablefor resistive bridgets. The

*** 43 ABS(X) **'FUNCTIONTake the abbolute value of the value in locationX and placelthe result in location Z.SECTION 10. PROCESSING INSTRUCTION

SECTION 10. PROCESSING INSTRUCTIONSParameter 3 cannot be entered as an indexedlocation within a loop (lnstruction 87). To useInstruction 49 within

01: 402: 403: 204: 405: 2PAR. DATANO. TYPEDESCRIPTIONNumber of values to move1st source locationStep of source1 st destination locationStep of des

SECTION 10. PROCESSING INSTRUCTIONSPAR. DATANO. TYPE DESCRIPTION01: 4 Input location no. of atmosphericpressure in kilopascalsIPRESSURE]02: 4 Input

01:02:amount ofat the different frequencies butdo notany phase information.originaltime varying signalcan beby taking the Inverse Fouriermagnitude

SECTION 10. PROCESSING INSTRUCTIONSpower spectral is output. Parameter 3 is equalto the log base 2 of A where A is the number ofbins to be averaged.

zerc to peaor one quarter of thepeak tovalue of the sinusoidal signal.MAGNAND PHASE COMPONENTSThe result of the FFT when the magnitude andphase optio

TABLE 10-1. Example of FFT Power Spectra Bin Averaging (Assuming 1024 time series valuesstarting in Location 1)SECTION 10. PROCESSING INSTRUCTIONSFo

*** 61INDEXED MOVE ***FUNCTIONMoves inputfrom location X to location Y,where X and Y are indirectly addressed. Thevalues of thd location numbers X

SECTION 10. PROCESSING INSTRUCTIONSTABLE 10-2. Maximum Number of Outputs and Output Order for K lnput Values.(The output order flows from left to ri

INPUT/OUTPUTINSTRUCTIONSSpecify the conversion of a sensor signal to adata value and store it in Input Storage.Programmable entries specify:(1) the

phase is where new inputived, the necessary squares orformed, and the appropriatecalculated as required by theoutput. The rate at which thecan be ma

SECTION 10. PROCESSING INSTRUCTIONSN' is the number of input scans in the lastaveraging periodNT is the total number of input samplesprocessed i

ON 11. OUTPUT PROCESSING INSTRUCTIONSwind vector flirection over an output interual.Two differer* calculations of wind vectordirection (and standard

SECTION 11. OUTPUT PROCESSING INSTRUCTIONSThere are three Output Options, which specifythe values calculated.Option 0:Mean horizontalwind speed, S.

** 71 AVERAGE ***FUNCTIONThis instructibn stores the average value overthe given oulput interualfor each input locationspecified.PAR. DATANO. ryPE D

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS(defined as the bin select value) is within aparticular subrange of the total specified range.The count in

it is the first firinute of the day. Similarly,entering 2 fof the hour-minute code causes 2400instead of 0QO0 to be output (the next minute isstill 0

SECTION 11. OUTPUT PROCESSING INSTRUCTIONSThe output flag must be set each timeInstruction 80 is used. Instruction 80 mustdirectly follow the instruc

01:02:2444l41FP]FPFP201:02:03:o4:05:06:07:08:09:10:More than ofre Rainflow Histogram can becalculated u$ing the Repetitions parameter. Theswath of i

N 12. PROGRAM CONTROL INSTRUCTIONSFlag 0Flag 1 to 8Flag 912-1. Flag DescriptionOutput FlagUser FlagsI ntermediate Processing DisableFlagInstruction 9

3. FinalstoredThe use ofStorage inprocessingWhile theconstant,the areasSection 1memory,progranfs entered in Program Tables 1 and2, and $ubroutine Tabl

SECTION 12. PROGRAM CONTROL INSTRUCTIONSA delay of 0 means that there is no delaybetween passes through the loop. Eachtime the table is executed all

SECTION 12. PROGRAM CONTROL INSTRUCTIONSThe userpressuret hour averages of the vaporlated from the wet- and dry-bulbof 5 psychrometers. Onepressuremea

sEcTtoN 12.12: P8901: 2502: 303: 604: 3114: P8701: 102: 027: P8601: 128: P8901: 25O2: 303: 1604: 3129: P9536: P8601: 1P95P301: P8501: 103

Ithe loop. ln$truction 90 does not affect the loopcounter whi{r still counts by 1.IPAR. DAT4NO. TYPE DESCRIPTION01:2 Increfnent for the loop index co

SECTION 12. PROGRAM CONTROL INSTRUCTIONSthe start of the instructions to execute if the testcondition is false (Figure 3.8-1). The ElseInstruction is

When eitherlthe DC112 or RF modem optionsare specifie{ the time limit on the call (without acorrect respdnse) specified in Parameter 3 istimed from t

SECTION 12. PROGRAM CONTROL INSTRUCTIONS*** 98 SEND CHARACTER ***Instruction 98 is used to send a character to theprinter. The single parameter set

SECTION 13. 21X MEASUREMENTS{D SLOW MEASUREMENTSetup Amplifier Iniegrotion AfD ConversionSettling13.1 FAST ASEQUENGEThe 21X malkes voltage measuremen

SECTION 13. 21X MEASUREMENTSaveraging the magnitude of the results from thetwo integrations and using the polarity from thefirst. An exception to th

13.3 THE EFECT OF SENSOR LEADN THE SIGNAL SETTLINGLENGTHTIMEWhenever an analog input is switched into the21X measurdment circuitry prior to making ame

Table 1.Execute every x sec.0.0125<x<6553I nstru ctions are executedsequentially in the orderthey are entered in thetable. One complete passthro

SECTION 13. 21X MEASUREMENTSNOTE: Since the peak transient, V"o,causes significant error only if it is severaltimes larger than the signal, V&q

SHIELDFIGURE 13.3-4. Wire ManufacturersCapqcitance Specifications, CwSECTION 13. 21X MEASUREMENTSDIELECTRIC ABSORPTIONThe dielectric absorption of i

L=500 ft.The values in Table 13.3-3 show that significanterror occurs at large direction values for leadsin excess of 500 feet. Instruction 4, Exc

Equation 13,13-7 can be solved for the maximumlead length, l, permitted to maintain a specifiederror limit. Qombining Equations 13.3-7 and13.3-4 and

SECTION 13. 21X MEASUREMENTSlead length. lf the capacitive load exceeds 0.1pfd and the resistive load is negligible, V, willoscillate about its contro

errorFor eUse the1X to measure the input settlingwith a given configuration.assume long leads arebut the lead capacitance, C*, isConfigure Rl on a len

SECTION 13. 21X MEASUREMENTS= r\ | - Jvt\ vtilvlA) Ro = RsRf/(Rs+Rf), Vs = VxRf/(Rs+Rf)B) Ro@P = ns(Rf+Rf)/(Rs+Rf+Rf)= JOK OHM: | \lC) Ro = Rf, Vs

polynomial approximation of the NBS TCcalibrations. l13.4.1 ERROR ANALYSISThe error in lhe measurement of athermocouple temperature is the sum of thee

SECTION 13. 21X MEASUREMENTSTHERMOCOUPLE LIMITS OF ERRORThe standard reference which liststhermocouple output voltage as a function oftemperature (re

of 0.05%error ofappropriatethe voltageof a degree.is 25pV which is a temperatureO.6oC. In the environmentalwith voltage measured on anerror in temper

21X. Workthe direct programmingexamples inand you willoveruiew before using EDLOGthe basics ol21X operation aswellas anion for the help provided byKe

SECTION 13. 21X MEASUREMENTSbuilt-in thermistor. Errors in the thermocoupleand reference temperature polynomials areextremely small, and error in th

FIGURE tg.4-2. Diagram of Junction BoxAn external reference junction box must beconstructed so that the entire terminal area isvery close tO the same

SECTION 13.INSTR.#vxvl21X MEASUREMENTSDIAGRAM DESCRIPTIONRESULT = XDC HALF BRIDGEWITH USER ENTERED X = Vr = VxSETTLING TIMERs+RrAC HALF BRIDGE V&apo

SECTION 13. 21X MEASUREMENTS*Vx3 WireHalf BridgeDifferentialMeasurementwith Excitation6 WireFull Bridgeor 4 WireHalf BridgeCompensates for leadwire re

SECTION 13. 21X MEASUREMENTSlnstr.4TABLE 13.5-2. Calculating Resistance Values from Bridge MeasurementResult Instr. Muttiplier and OffsetI rf --&apos

13.6 RESISTCE MEASUREMENTSREQUAC EXCITATIONsensors require AC excitation.lhe 207 relative humidity probe,soilwater conductivity sensors,grids. The us

SECTION 14. INSTALLATION AND MAINTENANCE14.1FROM THEENVIThe normaltal variables of concernareand moisture. The standard21X is designed to operate reli

SECTION 14. INSTALLATION AND MAINTENANCE14.2 POWER REQUIREMENTSThe 21X operates at a nominal12V DC. Below9.6 or above 16 volts the 21X does not operat

14.9 21X PqWER SUPPLIESIThe 21X is {vailable with both alkaline batteries(21X) and lepd acid batteries (21XL). Thedifference b6tween the 21X and 21XL

SECTION 14. INSTALLATION AND MAINTENANCETABLE 14.3-2. 21XL Battery and ACTransf ormer Specif icationsLead Acid BatteryBattery TypeFloat Life @ 25oCCa

21 X MICROLOGGER OVERVIEWOV3.4 INSTRUCTION FORMATInstructions are identified by an instructionnumber. Each instruction has a number ofparameters that

VehicleVehicleFIGURE 141.6-1. Connecting Vehicle PowerI Supply+12+o_ |Y l+/ -=-6wc/ -=- EAnERY{lt- |TilT14.7 USE OF DIGITAL CONTROLPORTS FOR SWITCHI

SECTION 14. INSTALLATION AND MAINTENANCEdamage the datalogger. Campbell Scientific'sDC112 phone modem has spark gaps on thephone lines. A 12 AWG

Theprocedures are for calibrating the 3.voltage and the clock. Other factorssuch as roffset inCAO voltage require that the 21X be returned tothe fact

1.SECTION 14. INSTALLATION AND MAINTENANCERemove the 21X battery base and unplugthe battery from the 21X. Remove the fourscrews holding the aluminum

SECTION 14. INSTALLATION AND MAINTENANCE5iH@;QaJiH,:u ll;l'. ! :l16l, - 1bEr*-1I Es (l. -,3. . I'61' .t- .r i.t.r .ldR'lItt&apos

APPENDIXASCII:for American StandardCode fo I nformation Interchange"askee"). A specific binarycode of 28 characters represented by 7 bitbi

APPENDIX A. GLOSSARYINTERMEDIATE STORAGE: That portion ofmemory allocated for storing the results ofintermediate calculations necessary foroperation

APPENDIX A. GLOSSARYSIGNATUR: A number which is a function ofthe datand the sequence of data inmemory.l lt is derived using an algorithmwhich a*ure

APPENDIX B. PROM SIGNATURES AND SOFTWARE OPTIONSThe 21X P signatures are viewed by entering the2.4.3.). The 21X uses three PROMS.window (The currentRO

APPENDIX C. BINARY TELECOMMUNICATIONSMUNICATIONSWITH BINARYSDescription[no. of loc.]F BINARY DUMP - 21X sends, inFinal Storage Format (binary,the numb

OV4.1 SAMPLE PROGRAM 1IThe 21X ha$ a thermistor built into the inputpanelthat nieasures the paneltemperature andprovides a rlference for thermocouplet

UserEntersKCRAPPENDIX C. BINARY TELECOMMUNICATIONSpreviously executed; four time bytes, a userflags byte, four bytes for each input locationrequested

ic.2 F|NAL STORAGE FORMATI21X data is fprmatted as either 2 byte LOResolution oi 4 byte Hl Resolution values. Thefirst two byteb of an output array

APPENDIX C. BINARYTELECOMMUNICATIONSHIRESOLUTION FORMATContinuing to use the A-H bit representation, the four byte number is shown below as two two by

T2 = shift left (Ss(n)) + carry4. Form the new low signature byte by addingthe results of operation 3 to the old highsignaturE byte and the transmitt

APPENDIX D. ASCII TABLEAmerican Standard Code for lnformation lnterchangeDecimal Values and CharactersDec.01234567891011121314151617181920212223242526

The 21X hasand three hochips and asAPPENDIX E. CHANGING RAM OR PROM CHIPSsockets for memory chips. Five sockets hotd 8K Random Access Memory (An@ 9ltt

APPENDIX E. CHANGING RAM OR PROM CHIPSThe earliest 21Xs were shipped with only two4K RAM chips. Current software does notcheck for this condition; if

tIIIIIAPFENDIX F. DOCUMENTATION FOR SPECIAL SOFTWAREIIIIIIF-1

*D TAPE UPLOAD AND DOWNLOADFUNCTIONThis library qption adds additional*D modecommands that allow datalogger programs tobe saved to {nd loaded from a

""r-",=Lov3-1ov3-2ovs-1ov5-21.1.2-11.3-11.5-11.5-21.6-11.7-11.8-11.8-21.8-31.8-42.2.2-12.2-22.3-13.4.4.1-14.1-24.2-14.2-24,3-14.3-25.5.

21 X MICROLOGGER OVERVIEWKey"0"6AExplanationExit Table 1, enter *0 mode to compile table andbegin measurements.Enter *6 mode to view Input S

6.1-16.5-1LIST OF TABLES6. 9 PIN SERIAL INPUT/OUTPUTDTE Pin Configuration...8. PROCESSING AND PROGRAM CONTROL EXAMPLESExample Sensor D

LIST OF TABLES14. INSTLLATION AND MAINTENANCEical Current Drain for Common 21X Peripherals... .'... 14-1icatAlkaline Battery Servic

"t=r",=L2.2.1-12.1-23.7.1-17.2-17.4-17.7-'l7.8-17.9-17.10-17.1't-',l7.12-17.13-17.13-27.14-17.15-18.8.3-18.8-18.8-28.8-38.8-4

LIST OF FIGURES13. 21X MEASUREMENTS13.1-113.2-113.3-113.3-213.3.313.3-413.3-513.3-613.3-713.3-813.3-913.4-113.4-213.5-113.5-213.6-113.6-214. INSTALLAT

10712V21X TNDEX* Modes,Modes1,(l421 1O-2Probe101example 7-11Probe finstruction 111 9-5Bexampfes 7-2,7-12ov-3207 Relative Humidity Probe finstruction

21X INDEXClockCPU card circuitry calibration 14-7Setting/displaying time ("5 Mode) 1-2Programming example OV-14CM6/CM10 Tripod grounding protect

GHRedirec{ing data flnstruction 801 11-5exa{nple 8-3Ring m{mory 2-1Flags 3-3 1Displayi(rg and toggling 1-2Interme{iate Processing Disable 3-3Manually

M21X TNDEXLow Pass Filter ftnstruction 58] 10-6Low resolution 2-2LP Filter flnstruction 581 10-6Lysimeter, weighing 7-8Maintenance and installation of

Programlnstructions 12-1ov-5code parameter 12-1Logical3-4Memoryexecution times 3-8Program meinoryAllocation 1-3Definition OV-5Programlon power-up OV

21X TNDEXSerial InpuVOutputInterface details 6-lExternal peripherals 4-1Telecommunication 5-1Set Active Output Area flnstruction 80] 11-5Programming e

21X MICROLOGGER OVERVIEWDisplay ShowsKey (lD:Data) ExplanationA 02:0000 Enter repetition and advance to the secondparameter which specifies the firs

21X TNDEXVVapor Presture From Wet-/Dry-BulbTemperdtures finstruction 57] 10-5Prograntming example 8-l 0Vehicle powFr supply 14-4Volts (SE) ilnstructi

WARRANTY AND ASSISTANCEThe 21X MICROI-OGGER is warranted by CAMPBELL SCIENTIFIC, lNC. to be free from defects inmaterials and wofkmanship under norma

21X MICROLOGGER OVERVIEWwill be insefted at that point in the table,advance through and enter the parameters.The Instruction that was at that point an

Parameter 3 ]specif ies the channel on which tomake the firdt measurement. Parameter 6specifies thellnput Storage location in which tostore the firs

To obtain daily output, the lf Time instruction isagain used to set the Output Flag and isfollowed by the Output lnstructions to store timeand the da

2fX MICROLOGGER OVERVIEW'ExplanationEnter *5 mode. Clock running but not set correctly.Advance to YEAR location.Key in current year (1990).Enter

2.3.21X MICROLOGGER OVERVIEWand exchanged for the one which isretrieved so that data collection cancontinue uninterrupted.Bring a storage device to

21X MICROLOGGER OVERVIEWDATA RETRIEVALDATALOGGERP5{)RAOIOIRANSCEI\ERW,/ANTENNA& CABLEP50RADIOIRANSCEIVERVANTENNA& CAALE"":6'_.i

21X MICROLOGGER OVERVIEWOV6. SPECIFICATIONSANALOG INPUTSNUMBER OF CHANNELS: I ditterenria, o. up to 16singl$ended. Eacfi dilleren0al channol can bocon

SECTION 1. FUNCTIONAL MODES1.1TABLES -*1,*2, AND *3MODESData acquand processing functions arecontrolled b]l instructions contained in programtables.c

SECTION 1. FUNCTIONAL MODES1.1.3 TABLE PRIORITY/INTERRUPTSTable 1 execution has priority over Table 2. lfTable 2 is being executed when it is time to

1.3.1 DISPLAYING AND ALTERING INPUTSTORAGEWhen *6 is fieyed, the display will read"06:0000". One can advance to view the valuestored in Inf

21X OPERATOR'S MANUALTABLE OF CONTENTSPAGEWARRANW AND ASSISTANCESELECTED OPERATING DETA1LS... ...'... vCAUTIONARY

SECTION 1. FUNCTIONAL MODEScompilation. The display is not updated afterentering *0.When the *0, *B, or *D Mode is used to compile,all output ports

1.5.2 *A MODEThe *Ais used to 1) determine thenumber ofallocated to Input,Intermediatel and Final Storage; 2) repartitionthis 3) check the number of

SECTION 1. FUNCTIONAL MODES1.6 MEMORY TESTING AND SYSTEMSTATUS. -BThe.B Mode is used to 1) read the signature ofthe program memory and the software P

TABLE 1.1. *G Mode Entries and Codes12:0000DescriptionEnter current password. lfcorrect, then advance, elseexit *C Mode. 12:00indicates *C Mode is no

SECTION 1. FUNCTIONAL MODES1.8.1 TRANSFER TO COMPUTER/PRINTERThis section describes commands 1 and 2(Table 1.8-1). TERM (PC208 Software)automaticail

4.An (;) tells the 21X to ignore therest ofline and can be used after anentry soa comment can be added.There are 4 controlcodes whichmay be to verify

SECTION 2. INTERNAL DATA STORAGE2.1 FINALAREAS, OUTPUTARRAYS,D MEMORY POINTERSis that portion of memory wheredata are stored. Data must besent tobefor

SECTION 2. INTERNAL DATA STORAGEThe Data Storage Pointer (DSP) is used todetermine where to store each new data point inthe Final Storage area. The

The of the low resolution format issignificant digits when the first (left7 or greater (Table 2.2-2). Thus, itSECTION 2. INTERNAL DATA STORAGE0.00003

TheSECTION 3. INSTRUCTION SET BASICSused to program the 21X are divided into 4 types: lnput/Output (l/O), Processing,Output and Program Control. l/O

2.12.22.3TABLE OF CONTENTSPROGRAMMING1. FUNCTIONAL MODESSetting and Displaying the Clock - *5 Mode ... 1-Displaying and Altering Inpu

SECTION 3. INSTRUCTION SET BASICScounter. The loop counter is added to theindexed value to determine the actual inputlocation the instruction acts o

location is updated by an llQ Instruction.suppose a temperatureis initiated by Table 1 which hasanintervalof 1 second. Theevery 10 mi are in Table 2

SECTION 3. INSTRUCTION SET BASICSset high. This flag is used to restrict samplingfor averages, totals, maxima, minima, etc., totimes when certain cr

lf Then/Else may be nested to formlogical AND pr OR branching. Figure 3.8-2illustrates anlAND construction. lf conditions Aand B are trde, the instru

SECTION 3. INSTRUCTION SET BASICSnested 2 deep while the OR construction isnested 3 deep. Branching and loop nestingstarts at zero within each subro

SECTION 3. INSTRUCTION SET BASTCSTABLE 3.9-2. Processing Instruction Memory and Execution TimesINPUTLOC.fi = No. of Reps.MEMORYINTER. PROG.LOC. BYTE

SECTION 3. INSTRUCTION SET BASICSINSTRUCTIONTABLE 3.9-3. Output Instruction Memory and Execution TimesR = No. of Reps.MEMORY EXECUTION TIME (ms)INTER

3.10 ERRORICODESThere are fo21X: Compilr types of errors flagged by the, Run Time, Editor, and *D Mode.SECTION 3. INSTRUCTION SET BASICS'updates

SECTION 4. EXTERNAL STORAGE PERIPHERALSExternal datf storage devices are used to provide a data transfer medium that the user can carry fromthe test

SECTION 4. EXTERNAL STORAGE PERIPHERALSOnly one of the options 1x,2x, or 30 may beused in a program. lf using a SM64 StorageModule, output code 21 sho

TABLE OF CONTENTSPROGRAMMING EXAMPLESREMENT PROGRAMMING EXAMPLESVoltage - Ll200S Silicon Pyranometer... ...7-1and Sensor with a

Key*8AID:4.2-1. '8 Mode EntriesDescriptionEnter *8 Mode, key A toadvance to first window.Start of Dump location,initially the TPTR location, ad

SECTION 4. EXTERNAL STORAGE PERIPHERALSWhen on-line Storage Module or printer transferis not enabled and the *9 Mode is used to dumpnew data, the sta

OPERATING TEMPERATURE LIMITATIONSThe cassette recorder is recommended for usein an envirohmental operating temperaturerange of 0'tro +40"C.

SECTION 4. EXTERNAL STORAGE PERIPHERALS3. Insert the plugs on the free end of theSC92A or SC93A into the DC-IN and MIC(and Ear if SC93A) jacks on the

1.Connectlthe Storage Module to the 21Xusing th{ SC12 cable.2. Enter thappropriate commands as listedin Table .2-2.4.5 PRINTER OUTPUT FORMATSPrinter

used tothe 21X thataaaaaradioshortmodemSC32Aribbon cableinbrtace and coax cabledoes not cover the technical inbrtace details for any of these links.

SECTION 5. TELECOMMUNICATIONS5. CR to datalogger means "execute".6. CRLF from datalogger means "executingcommand".7. ANY characte

[YR:DAY:HR::SSIC[no. of arrays]DiE[no. ff loc.]FlF.S. lo0. no.lG. no.ll3142J5.2 REMOTE PROGRAMMING OF THE21XThe 21X carp be programmed viatelecommu(ic

SECTION 5. TELECOMMUNICATIONSawaiting another command. So the user canstep back and forth between theTelecommunications Command State and theRemote K

SECTION 6. 9 PIN SERIAL INPUT/OUTPUTiI6.1 PIN DESCRIPTIONAll external dommunication peripherals connectto the 21X through the 9-pin serial l/O connect

TABLE OF CONTENTSINSTALLATION14. INSTALLATION AND MAINTENANCE14.114.214.3'14.414.514.614.714.814.914.10Solar Pane1s... ... 1D

SECTION 6. 9 PIN SERIAL INPUT/OUTPUT6.2 ENABLING PERIPHERALSSeveral peripherals may be connected in parallelto the 9-pin port. The 21X directs data t

6.5.1 SC32AMost, terminals, and printers requirethe SC32Alsolated RS232 lnterfacefor a "direct"to the 21X. The SC32Araises the 21X's ri

SECTION 6. 9 PIN SERIAL INPUT/OUTPUTlf the computer is configured as DCE equipment(pin 2 is an input for RD), a null modem cable isrequired. See the S

data to alsodiskandCardmodem,when implemented bycomputerTothe limitations of half duplex, somelinks expect a terminal sendingthe data to the screen.

7. MEASUREMENT PROGRAMMING EXAMPLESThis sectionsome examples of lnput Programming for common sensors used with the 21X. Theseexamplesonly the connecti

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLESFigure 7.2-1. Since a single- endedmeasurement is referenced to the 21X ground,any voltage difference betw

Hl 1LO1fil5LO5iHi 6EX17.5 107 TEMPERATURE PROBElnstruction 11 is designed to excite and measurethe CampbQll Scientific 107 Thermistor Probe(or the t

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7.7 ANEMOMETER WITHPHOTOCHOPPER OUTPUTAn anemometer with a photochopper transducerproduces a pulsed output

IiI sEcrloN 7.IliIshortening sivitch life, a transient may beinduced in other wires, packaged with the raingauge leadsf each time the switch closes. T

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLESThe fixed 100 ohm resistor must be thermallystable. lts precision is not important becausethe exact resist

IIIIIIIliI SELECTED OPERATING DETAILSIII1. StorinolData - Data is stored in Final PROMs are available which have differentStorag-{ only by Output Pr

IIII01: P401: 1l02: g03: 104: 105: 430q06: 107: 10q.08: A02: P1g01: n02: 'l03: A04: '!05: qSECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLESThe relationship between temperature and PRTresistance is a slightly nonlinear one. Instruction16 computes

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7.13 L.6 WIRE FULLBRIDGEWhen a longis required between a loadcell and theX, the resistance of the wire ca

sEcTtoN 7.MEASUREMENT PROGRAMMING EXAMPLESare that it requires an extra differentialchanneland the added expense of a 6 wire cable. In thiscase, the

III SECT|ON 7. MEASUREMENT PROGRAMMTNG EXAMPLESvoltage to th{ excitation voltage;this output is PROGRAMconverted to,Sypsum block resistance withIn

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLESThe manual for the 101 Probe gives thecoefficients of the sth order polynomial used toconvert the output

This measufement sequence should not beused to me{sure temperature on the 207temperatur{ and RH probe. The longerexcitation/intpgration time could cau

8. PROCESSING AND PROGRAM CONTROL EXAMPLESTheexamples are intended to illustrate the use of Processing and Program Controlflags, and the capability

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESO4: P5401: 902: 1203: 104: 1105: 105: P8601: 1006: P7001: 102" 2Block MoveNo. of ValuesFirst S

redirected tol Final Storage Area 1, the time isoutput and t|pe total is sampled.IInRut Locatijn Labels:P8032P7211P8q44q3qP8012qP7V,22Q08: P7g01: 110

CAUTIONARY NOTES2.Damage will occur to the analog inputcircuitry if voltages in excess of r16 V areapplied for a sustained period. Voltages inexcess

12VtC1C21H1LSECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESAM41 6n;v-GNDi RESSETS 1_16-liCLK /I coM H1 ----J/ o- H1iCOvt L1!coCOMTable 1 ProgramsSe

13: P I End Table 1I* Al Mode 10 Memory Allocation01: 35 | Input Locations02: 641 Intermediate Locations8.4 SUB 1 MINUTE OUTPUT INTERVALSYNCHED T

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESWhile of questionable value because of currentrequirements and strip chart reliability, somearchaic

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES02:03:11:01:02:03:o4:.05:6010minute intervalSet high Flag 0 (output)Wind VectorRepSamples per sub-in

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES15: P End Table 38.7 COVARIANCE CORRELATIONPROGRAMMING EXAMPLEThe'example is a 2 level meteorol

SECTION 8. PROCESSING AND PROGHAM CONTROL EXAMPLESTABLE 8.7-2. Example Outputs and lnput Storage LocationsLEVEL 1 OUTPUTSM(w1)M(u1)M(v1)M(Tal)M(e1)

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES01:Table 1 ProgramsSec. Execution IntervalPanel TemperatureLoc [:PANL TEMP]Volt (SE)Reps5000 mV slow

06't42230380513212937m111927350109172533110v(w1)CV(W1,e1)v(w2)DAYv(u1)cR(w1,u1)v(u2)M(u1)V(e1)M(U2)V(e2)SECTION 8. PROCESSING AND PROGRAM CONTROL

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESTABLE 8.8-1. FFT Real and lmaginary Results 0.25 and 1.25H2 SignalBIN #01232223242526272829125126127

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESTABLEFFT Power SPectra Resultsand 1.25 Hz SignalHz00.214852o.224618o.234384o.244150.2539160.263682o.

21 X MICROLOGGER OVERVIEWThe 21X Mi ologger combines precision measurement with processing and control capability in a singlebattery operted system.

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESBeginning of LoopDelayLoop CountDoSet high Flag 0 (output)ResolutionHigh ResolutionSampleRepLocEndD

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPTES8.8-4. FFT Bin Averaging Results from Simulated Ocean Buoy Wave DatalN#123456789FREQUENCY0.001950.

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESWhen flag 2 is set the FFT is computed and theresults are sent to Final Storage.10: P9101: 1202: 30

SECTION 8, PROCESSING AND PROGRAM CONTROL EXAII'IPLESP464+360 14fP484t-$+P9514: P5301: 8Q2: 403: 004: 605: 006: 907: 008: 1109: 011:01:02:03:12:

SECTION 9. INPUT/OUTPUT INSTRUCTIONSTABLE 9-1. Input Voltage Ranges and CodesRange CodeSlow Fast16.67ms 250psInteg. Integ.FullScale RangeResolution12

SECTION 9. INPUT/OUTPUT INSTRUCTIONSThe count is incremented when the inputvoltage changes from below 1.5 volts toabove 3.5 volts. The maximum input

mentionedcorrect this391 B/392Danywhereone second too short toalmost twicelong. Pulses are not lost duringso totalized values are correctbut pulse in

01:02:03:04:.05:2224FPFP06:07:08:222201:02:03:04:SECTION 9. INPUT/OUTPUT INSTRUCTIONSPARAM. DATANUMBER TYPE DESCRIPTIONRepetitionsRange codeInput cha

PATA[YPEIl222201:02:03:04:4'44iFPFP05:06:07:08:09:PARAM.NUMBERDESCRIPTIONRepetitionsRange codeInput channel number forfirst measurementExcitation

SECTION 9. INPUT/OUTPUT INSTRUCTIONSPARAM. DATANUMBER TYPE DESCRIPTIONRepetitionsInput channel number offirst measurementExcitation channelnumberInput