Campbell CR7 Manual de Instruções Página 1

CR7 MEASUREMENT AND CONTROL SYSTEMINSTRUCTION MANUALREVISION: 7/97COPYRIGHT (c) 1991-1997 CAMPBELL SCIENTIFIC, INC.

viCAUTIONARY NOTESThe typical current drain for the CR7 isapproximately 100 mA while executing and 8-10mA quiescent. Do not allow the lead-acidbatteri

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-10instructions and examples. This instruction isnot in all PROM options.PARAM. DATANUMBER TYPE DESCRIPTION01:

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-11Data are stored in sequential datalogger inputlocations, starting at the location specified inParameter 5. T

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-12PARAM. DATANUMBER TYPE DESCRIPTION1 2 Reps (# of CD16ACmodules sequentiallyaddressed)2 2 Starting SDM address

10-1SECTION 10. PROCESSING INSTRUCTIONSTo facilitate cross referencing, parameterdescriptions are keyed [] to the values given onthe PROMPT SHEET. T

SECTION 10. PROCESSING INSTRUCTIONS10-2*** 36 X * Y ***FUNCTIONMultiply the value in location X by the value inlocation Y and place the result in

SECTION 10. PROCESSING INSTRUCTIONS10-3*** 43 ABS(X) ***FUNCTIONTake the absolute value of the value in locationX and place the result in location

SECTION 10. PROCESSING INSTRUCTIONS10-4Parameter 3 cannot be entered as an indexedlocation within a loop (Instruction 87). To useInstruction 49 with

SECTION 10. PROCESSING INSTRUCTIONS10-5PAR. DATANO. TYPE DESCRIPTION01: 4 Number of values to move02: 4 1st source location03: 2 Step of source04: 4

SECTION 10. PROCESSING INSTRUCTIONS10-6PAR. DATANO. TYPE DESCRIPTION01: 4 Input location no. of atmosphericpressure in kilopascals[PRESSURE]02: 4 Inp

SECTION 10. PROCESSING INSTRUCTIONS10-7Input Storage. The instruction requires the setof input values to be located contiguously inInput Storage. T

OV-1CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWThe CR7 Measurement and Control System combines precision measurement with processing andcontrol capabi

SECTION 10. PROCESSING INSTRUCTIONS10-8TABLE 10-1. Maximum Number of Outputs and Output Order for K Input Values.(The output order flows from left t

SECTION 10. PROCESSING INSTRUCTIONS10-9The Input Processing phase is where new inputvalues are received, the necessary squares orcross products forme

SECTION 10. PROCESSING INSTRUCTIONS10-10NT is the total number of input samplesprocessed in the Output IntervalINTERMEDIATE STORAGE REQUIREMENTSThe n

11-1SECTION 11. OUTPUT PROCESSING INSTRUCTIONS*** 69 WIND VECTOR ***FUNCTIONInstruction 69 processes the primary variablesof wind speed and direct

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS11-2minutes, the standard deviation is calculatedfrom all 3600 scans when the sub-interval is 0.With a sub-

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS11-3*** 70 SAMPLE ***FUNCTIONThis instruction stores the value from eachspecified input location.PAR. DA

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS11-4the total number of scans. This form of outputis also referred to as a frequency distribution.The weig

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS11-5The year is output as 19xx if xx is greater than85, otherwise it will be output as 20xx. TheCR7 will r

SECTION 11. OUTPUT PROCESSING INSTRUCTIONS11-6PAR. DATANO. TYPE DESCRIPTION01: 2 Storage area option01 = Final Storage (00 and02 also default toFinal

12-1SECTION 12. PROGRAM CONTROL INSTRUCTIONSTABLE 12-1. Flag DescriptionFlag 0 Output FlagFlag 1 to 8 User FlagsFlag 9 Intermediate Processing Disab

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-2RS232 9 pin serial ports used on manycomputers.The SDM terminals adjacent to the serial portallow conne

SECTION 12. PROGRAM CONTROL INSTRUCTIONS12-20 is entered for the count, the loop is repeateduntil an Exit Loop command is executed.The first paramete

SECTION 12. PROGRAM CONTROL INSTRUCTIONS12-3PAR. DATANO. TYPE DESCRIPTION01: 2 Delay02: 4 Iteration countThe following example involves the use of th

SECTION 12. PROGRAM CONTROL INSTRUCTIONS12-412: P89 If X<=>F01: 25 X Loc DAY02: 3 >=03: 6 F04: 31 Exit Loop if true13: P95 End14: P87 Beginn

SECTION 12. PROGRAM CONTROL INSTRUCTIONS12-5PAR. DATANO. TYPE DESCRIPTION01: 2 Increment for the loop indexcounter*** 91 IF FLAG ***FUNCTIONThis i

SECTION 12. PROGRAM CONTROL INSTRUCTIONS12-6Else Instruction is optional; when it is omitted, afalse comparison will result in executionbranching dir

13-1SECTION 13. CR7 MEASUREMENTS13.1 FAST AND SLOW MEASUREMENTSEQUENCEThe CR7 makes voltage measurements byintegrating the input signal for a fixed

SECTION 13. CR7 MEASUREMENTS13-2FIGURE 13.2-1. Differential VoltageMeasurement SequenceBecause a single ended measurement isreferenced to CR7 ground

SECTION 13. CR7 MEASUREMENTS13-313.3 THE EFFECT OF SENSOR LEADLENGTH ON THE SIGNAL SETTLINGTIMEWhenever an analog input is switched into theCR7 meas

SECTION 13. CR7 MEASUREMENTS13-4Since the peak transient, Veo, causessignificant error only if it is several times largerthan the signal, Vso, error

SECTION 13. CR7 MEASUREMENTS13-5TABLE 13.3-2. Properties of Three Belden Lead Wires Used by Campbell ScientificBelden RlCwWire # Conductors Insulati

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-3CR7RELIEF VALVECAUTIONPRESS BUTTONBEFOREUNLOCKING CASEFIGURE OV1-1. CR7 Measurement and Control Syste

SECTION 13. CR7 MEASUREMENTS13-6TABLE 13.3-3. Settling Error (Degrees) for024A Wind Direction Sensor vs. Lead LengthWind - - - - - Error - - - - -Di

SECTION 13. CR7 MEASUREMENTS13-7EXAMPLE LEAD LENGTH CALCULATIONFOR CAMPBELL SCIENTIFIC 107TEMPERATURE SENSORAssume a limit of 0.05oC over a 0oC to +4

SECTION 13. CR7 MEASUREMENTS13-8Table 13.3-6 summarizes maximum leadlengths for corresponding error limits in sixCampbell Scientific sensors. Since

SECTION 13. CR7 MEASUREMENTS13-9TABLE 13.3-7. Source Resistances and Signal Levels for YSI #44032 Thermistor ConfigurationsShown in Figure 13.3-7 (2

SECTION 13. CR7 MEASUREMENTS13-10FIGURE 13.3-7. Half-Bridge Configurationfor YSI #44032 Thermistor Connected to CR7Showing: A) Large source resista

SECTION 13. CR7 MEASUREMENTS13-11FIGURE 13.3-9. Incorrect Leadwire Extensionon Model 107 Temperature Sensor13.4 THERMOCOUPLEMEASUREMENTSA thermocou

SECTION 13. CR7 MEASUREMENTS13-12thermocouples attached to it and to one 723Analog Input card to either side of it (i.e. AnalogInput cards 1,2, and 3

SECTION 13. CR7 MEASUREMENTS13-13In order to quantitatively evaluate thermocoupleerror when the reference junction is not fixed at0 oC, one needs lim

SECTION 13. CR7 MEASUREMENTS13-14from the thermocouple output. For example,suppose the reference temperature for ameasurement on a type T thermocoup

SECTION 13. CR7 MEASUREMENTS13-15is 100 oC and the upper limit of the extensiongrade wire is 200 oC. With the other types ofthermocouples the refere

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-412RTD34MADE IN USA+12720 I/O MODULEANALOG INTERFACEH H H H1234724 PULSE COUNTERHL HL HL HL HL HL

SECTION 13. CR7 MEASUREMENTS13-16FIGURE 13.5-1. Circuits Used with Instructions 4-9

SECTION 13. CR7 MEASUREMENTS13-17-10123456789Excitation +Vx-Vx0 VMeasurement SequenceIntegrationIntegration (ms)IntegrationA/D ConversionA/D Convers

SECTION 13. CR7 MEASUREMENTS13-18TABLE 13.5-2. Calculating Resistance Values from Bridge MeasurementInstr. Result Instr. Multiplier and Offset4XVR R

SECTION 13. CR7 MEASUREMENTS13-1913.6 RESISTANCE MEASUREMENTSREQUIRING AC EXCITATIONSome resistive sensors require AC excitation.These include the 2

SECTION 13. CR7 MEASUREMENTS13-2013.7 PULSE COUNT MEASUREMENTSMany pulse output type sensors (e.g.,anemometers and flow-meters) are calibrated inter

14-1SECTION 14. INSTALLATION14.1 ENVIRONMENTAL ENCLOSURE,CONNECTORS AND JUNCTIONBOXESThe standard CR7 is equipped with the ModelENC-7F Fiberglass Ca

SECTION 14. INSTALLATION14-2tight seal but do require protection from thermalgradients when used for thermocouple leadwires (Section 13.4).14.2 SYST

SECTION 14. INSTALLATION14-3Battery voltage should NOT be allowed todrop below 11.76V before recharging;otherwise, permanent damage to the leadacid c

SECTION 14. INSTALLATION14-4Regulated solar panels (e.g., MSX18R) limitvoltage to approximately 14V. The CR7Solar Panel input requires 15-25 VDC toc

SECTION 14. INSTALLATION14-53. When the CR7 is to be located in a gas-tight enclosure or used in a gas-tight modewith the standard ENVIRONMENTALLYSEA

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-5INPUT/OUTPUTINSTRUCTIONSSpecify the conversion of a sensor signalto a data value and store it in InputS

SECTION 14. INSTALLATION14-620 AWG wire. This transient protection isuseless if there is not a good connectionbetween the CR7 and earth ground.All d

15-115. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15.1 I/O CARD IDENTIFICATIONNUMBER DECODINGEach I/O card must be assigned a unique cardidentific

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-2FIGURE 15.1-1. Position of Decoding Jumpers on Excitation, Pulse Counter and Analog Inpu

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-3TABLE 15.1-2. Jumper Settings for Excitation and Pulse Counter Cards

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-4TABLE 15.1-3. Jumper Settings for Analog Input Cards.15.2 USE OF MULTIPLE I/O MODULESUp

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-5TABLE 15.2-2. Hardware Components in SC94Component DescriptionInterconnect Cable (1 ea.)

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-6A typical programming example for a CR7System containing two I/O Modules is given inthe f

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-7Figure 15.2-1. Location of Jumper Controlling Baud Rate to I/O Modules

SECTION 15. I/O CARD ADDRESSING AND MULTIPLE I/O MODULES15-8Figure 15.2-2. Location of I/O Module Jumper Controlling Baud Rate between the I/O Modul

A-1APPENDIX A. GLOSSARYASCII: Abbreviation for American StandardCode for Information Interchange(pronounced "askee"). A specific binarycod

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-63. Final Storage - Final, processed values arestored here for transfer to printer, solid stateStorage M

APPENDIX A. GLOSSARYA-2INTERMEDIATE STORAGE: That portion ofmemory allocated for storing the results ofintermediate calculations necessary foropera

APPENDIX A. GLOSSARYA-3measurement specified by a subsequentinstruction. The time involved in processingthe measurement data to obtain the valuessto

APPENDIX A. GLOSSARYA-4This is a blank page.

B-1APPENDIX B. CR7 PROM SIGNATURES FOR SYSTEMS EQUIPPEDWITH STANDARD SOFTWAREDISPLAYKEY ID DATA PROMENTRY FIELDFIELD NO. REMARKS*B 01: XXXX Program M

B-2This is a blank page.

C-1APPENDIX C. BINARY TELECOMMUNICATIONSThe response time and size of the input buffer of the datalogger must be accounted for when attemptingto writ

APPENDIX C. BINARY TELECOMMUNICATIONSC-2K The K command returns datalogger time,user flag status, port status if requested, thedata at the input loca

APPENDIX C. BINARY TELECOMMUNICATIONSC-3For loop count = 1 to 24 do the following:If the MSB is one, then add Bit Value to theMantissa.Shift the 24 b

APPENDIX C. BINARY TELECOMMUNICATIONSC-4to the telecommunications F command a 2 bytesignature is sent (see below).Representing the bits in the first

APPENDIX C. BINARY TELECOMMUNICATIONSC-5BITS, 1ST BYTE,1ST PAIR DESCRIPTIONCDEF = 0111 Code designating 1st byte pair of four byte number.B Polarity

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-7Table 1.Execute every x sec.0.0125 < x < 6553Instructions are executedsequentially in the order t

APPENDIX C. BINARY TELECOMMUNICATIONSC-6This is a blank page.

D-1APPENDIX D. CALIBRATION PROCEDURESThe CR7 requires very little maintenance or calibration. Measurements are made in such a way thatsmall errors i

APPENDIX D. CALIBRATION PROCEDURESD-2D.2 CLOCK CALIBRATIONPROCEDUREThe 700X control module contains 3, 4, or 5cards. The CPU card has one blue conn

APPENDIX D. CALIBRATION PROCEDURESD-3FIGURE D.2-1. Calibration Points for the Analog Interface Card

APPENDIX D. CALIBRATION PROCEDURESD-4FIGURE D.2-2. CR7X CPU Card

LT-1LIST OF TABLESPAGEOVERVIEWOV3-1 *Mode Summary ...

LIST OF TABLESLT-25. TELECOMMUNICATIONS5.1-1 Telecommunication Commands ...

LF-1LIST OF FIGURESPAGEOVERVIEWOV1-1 CR7 Measurement and Control System ...

LIST OF FIGURESLF-2PAGE13. CR7 MEASUREMENTS13.1-1 Timing of Single-Ended Measurement...

I-1CR7 INDEX-6999 9-1-99999 9-1* Modes, see Modes1/X [Instruction 42] 10-2101 Thermistor ProbeProgramming example 7-14107 Thermistor Probe [Ins

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-8OV3.1 FUNCTIONAL MODESUser interaction with the CR7 is broken intodifferent functional MODES, (e.g., p

CR7 INDEXI-2Communicating with the CR7Protocol/Troubleshooting 6-4Via telecommunications 5-1With external peripherals 4-1Compiling 1-2Errors 3-9C

CR7 INDEXI-3Full Bridge with Excitation Compensation [Instruction 9] 9-4Programming examples 7-8, 7-12Full Bridge with Single Differential Measurem

CR7 INDEXI-4MManually initiated data transfer (*8 and *9 Modes) 4-2Maximum [Instruction 73] 11-3MemoryAllocation 1-4Automatic RAM check on power-u

CR7 INDEXI-5ProgrammingDisplaying available program memory 1-4Entering negative numbers 3-1Examples OV-9, 7-1, 8-1Logical constructions 3-4Manual

CR7 INDEXI-6Storage Modules, SM192/SM716Interrupting card transfer to 6-2Manually initiated data output (*9 Mode) 4-2Operating power 4-6Output devi

CR7 INDEXI-7XX * F [Instruction 37] 10-2X * Y [Instruction 36] 10-2X + F [Instruction 34] 10-1X + Y [Instruction 33] 10-1X - Y [Instruction 3

CR7 INDEXI-8This is a blank page.

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-9OV3.4 INSTRUCTION FORMATInstructions are identified by an instructionnumber. Each instruction has a n

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CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-10Tables OV3-1 and OV3-2 summarize theKeyboard Commands and Control Modes usedto program the CR7, monito

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-11TABLE OV4-1. Thermocouple Measurement Programming ExampleTURN ON THE POWER SWITCH AND PROCEED AS FOLL

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-12TABLE OV4-2. Using *6 Mode to Observe Example TC Measurements(User with Model 723-T RTD Card)DisplayI

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-13TABLE OV4-4. Example Programming to Obtain Five Minute AveragesDisplayID:Data KeyDisplayID:Data Key D

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-14TABLE OV4-5. Using *7 Mode to View Values in Final StorageDisplayID:Data KeyDisplayID:Data Key Descri

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-15OV5. DATA RETRIEVAL OPTIONSThere are several options for data storage andretrieval. These options ar

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-16DisplayStorageModuleCard StorageModuleMultidropModemShorthaulModemRF Modem PhoneModemSatelliteInterfac

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-17OV6. SPECIFICATIONSElectrical specifications are valid for over a -25° to +50°C range unless otherwis

CR7 MEASUREMENT AND CONTROL SYSTEM OVERVIEWOV-18This is a blank page.

1-1SECTION 1. FUNCTIONAL MODES1.1 PROGRAM TABLES - *1, *2, AND *3MODESData acquisition and processing functions arecontrolled by instructions contai

WARRANTY AND ASSISTANCEThe CR7 MEASUREMENT AND CONTROL SYSTEM is warranted by CAMPBELL SCIENTIFIC, INC. tobe free from defects in materials and workma

SECTION 1. FUNCTIONAL MODES1-21.1.2 SUBROUTINESTable 3 is used to enter subroutines which maybe called with Program Control Instructions inTables 1

SECTION 1. FUNCTIONAL MODES1-3TABLE 1.3-1. *6 Mode CommandsKey ActionA Advance to next location or enter newvalueB Back-up to previous locationC Cha

SECTION 1. FUNCTIONAL MODES1-4When the *0, *B, or *D Mode is used to compile,all output ports and flags are set low, the timer(Instruction 26) is res

SECTION 1. FUNCTIONAL MODES1-5TABLE 1.5-2. Description of *A Mode DataKey DisplayEntry ID: Data Description of Data*A 01: XXXX The number of memory

SECTION 1. FUNCTIONAL MODES1-61 describes what the values seen in the *BMode represent. The correct signatures of theCR7 PROMs are listed in Appendi

SECTION 1. FUNCTIONAL MODES1-7TABLE 1.7-1. *C Mode Entries and CodesKey DisplayEntry ID: Data Description*C 12:0000 Enter current password.If correc

SECTION 1. FUNCTIONAL MODES1-8All data in Input, Intermediate and FinalStorage are erased when a command to loada program is executed or when a progr

SECTION 1. FUNCTIONAL MODES1-9LOAD PROGRAM FROM ASCII FILECommand 2 sets up the CR7 to load a serialASCII program. The format is the same as sentin r

SECTION 1. FUNCTIONAL MODES1-10This is a blank page.

2-1SECTION 2. INTERNAL DATA STORAGE2.1 FINAL STORAGE AREAS, OUTPUTARRAYS, AND MEMORY POINTERSFinal Storage is that portion of memory wherefinal, pro

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SECTION 2. INTERNAL DATA STORAGE2-2The Data Storage Pointer (DSP) is used todetermine where to store each new data point inthe Final Storage area. T

SECTION 2. INTERNAL DATA STORAGE2-3TABLE 2.2-2. Decimal Location in LowResolution FormatAbsolute Value Decimal Location0 - 6.999 X.XXX7 - 69.99 XX.X

SECTION 2. INTERNAL DATA STORAGE2-4This is a blank page.

3-1SECTION 3. INSTRUCTION SET BASICSThe instructions used to program the CR7 are divided into four types: Input/Output (I/O), Processing,Output Proce

SECTION 3. INSTRUCTION SET BASICS3-2Even though this display is the same as thatindicating an indexed input location, (Section3.4) there is no indexi

SECTION 3. INSTRUCTION SET BASICS3-3sample counts, stores the resulting average inFinal Storage and zeros the value inIntermediate Storage so that th

SECTION 3. INSTRUCTION SET BASICS3-4NOTE: If the Output Flag is already sethigh and the test condition of a subsequentProgram Control Instruction ac

SECTION 3. INSTRUCTION SET BASICS3-5execute if the comparison is true. The ElseInstruction, 94, is optional and is followed by theinstructions to ex

SECTION 3. INSTRUCTION SET BASICS3-6Subroutines can be called from othersubroutines; they cannot be embedded withinother subroutines. A subroutine m

SECTION 3. INSTRUCTION SET BASICS3-7TABLE 3.9-2. Processing Instruction Memory and Execution TimesR = No. of Reps.MEMORYINPUT INTER. PROG.INSTRUCTIO

iCR7 OPERATOR'S MANUALTABLE OF CONTENTSPAGEWARRANTY AND ASSISTANCESELECTED OPERATING DETAILS...

SECTION 3. INSTRUCTION SET BASICS3-8TABLE 3.9-3. Output Instruction Memory and Execution TimesR = No. of Reps.INSTRUCTION MEMORY EXECUTION TIME (ms)

SECTION 3. INSTRUCTION SET BASICS3-93.10 ERROR CODESThere are four types of errors flagged by theCR7: Compile, Run Time, Editor, and *D Mode.When an

SECTION 3. INSTRUCTION SET BASICS3-10This is a blank page.

4-1SECTION 4. EXTERNAL STORAGE PERIPHERALSExternal data storage devices are used to provide a data transfer medium that the user can carry fromthe te

SECTION 4. EXTERNAL STORAGE PERIPHERALS4-2Only one of the options 1x, 2x, or 30 may beused in a program. If using a SM64 StorageModule, output code

SECTION 4. EXTERNAL STORAGE PERIPHERALS4-3aborted until the next time the *9 Mode is entered.If the End of Dump location (window 2) is changedwhile i

SECTION 4. EXTERNAL STORAGE PERIPHERALS4-4If a Storage Module is not connected no dataare sent and the Printer Pointer (PPTR, Section2.1) is not adva

SECTION 4. EXTERNAL STORAGE PERIPHERALS4-5FIGURE 4.4-1. Example of CR7 Printable ASCII Output Format

SECTION 4. EXTERNAL STORAGE PERIPHERALS4-6This is a blank page.

5-1SECTION 5. TELECOMMUNICATIONSTelecommunications allows a computer to retrieve data directly from Final Storage and may be used toprogram the CR7 a

TABLE OF CONTENTSiiPROGRAMMING1. FUNCTIONAL MODES1.1 Program Tables - *1, *2, and *3 Modes ...

SECTION 5. TELECOMMUNICATIONS5-26. CRLF from datalogger means "executingcommand".7. ANY character besides a CR sent to thedatalogger with a

SECTION 5. TELECOMMUNICATIONS5-3[YR:DAY:HR:MM:SS]C RESET/SEND TIME - If time is entered the time is reset. If only 2 colonsare in the time string, H

SECTION 5. TELECOMMUNICATIONS5-4Telecommunications Command State and theRemote Keyboard State.Keying *0 will compile and run the CR7 programif progra

6-1SECTION 6. CS I/O 9 PIN SERIAL INPUT/OUTPUT6.1 PIN DESCRIPTIONAll external communication peripherals connectto the CR7 through the 9-pin CS I/O c

SECTION 6. 9 PIN SERIAL INPUT/OUTPUT6-26.2 ENABLING PERIPHERALSSeveral peripherals may be connected inparallel to the CS I/O 9-pin port. The CR7dire

SECTION 6. 9 PIN SERIAL INPUT/OUTPUT6-36.5.1 SC32A INTERFACEMost computers, terminals, and printers requirethe SC32A Optically Isolated RS232 Interf

SECTION 6. 9 PIN SERIAL INPUT/OUTPUT6-4FIGURE 6.5-1. Transmitting the ASCII Character 16.5.3 COMMUNICATION PROTOCOL/TROUBLESHOOTINGThe ASCII standa

SECTION 6. 9 PIN SERIAL INPUT/OUTPUT6-5terminal is set to half duplex rather than thecorrect setting of full duplex.IF NOTHING HAPPENSIf the CR7 is c

SECTION 6. 9 PIN SERIAL INPUT/OUTPUT6-6This is a blank page.

7-1SECTION 7. MEASUREMENT PROGRAMMING EXAMPLESThis section gives some examples of Input Programming for common sensors used with the CR7. Theseexampl

TABLE OF CONTENTSiiiPROGRAMMING EXAMPLES7. MEASUREMENT PROGRAMMING EXAMPLES7.1 Single Ended Voltage-LI200S Silicon Pyranometer...

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-2Figure 7.2-1. Since a single endedmeasurement is referenced to the CR7 ground,any voltage difference b

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-3The temperature of the 107 Probe is stored inInput Location 1 and the thermocoupletemperatures in Locat

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-4PROGRAM01: P17 Panel Temperature01: 1 IN Card02: 1 Loc [:PANL TEMP]02: P13 Thermocouple Temp (SE)01: 5

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-504: P87 Beginning of Loop01: 0 Delay02: 4 Loop Count05: P33 Z=X+Y01: 1 X Loc REF TEMP02: 2-- Y Loc TC t

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-6PROGRAM02: P12 RH 207 Probe01: 3 Reps02: 1 IN Card03: 4 IN Chan04: 1 EX Card05: 1 EX Chan06: 1 Meas/Tem

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-7FIGURE 7.10-1. Wiring Diagram forRaingage with Long LeadsIn a long cable, there is appreciablecapacita

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-8a multiplier of 1. The PRT is then placed in anice bath (0 oC; Rs=R0), and the result of thebridge mea

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-9The advantages of the 3 wire half bridge arethat it only requires 3 lead wires going to thesensor, and

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-10The 5 ppm/oC temperature coefficient of thefixed resistors was chosen so that their 0.01%accuracy tole

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-11PROGRAM01: P6 Full Bridge01: 1 Rep02: 4 50 mV slow Range03: 1 IN Card04: 1 IN Chan05: 1 EX Card06: 1 E

TABLE OF CONTENTSivINSTALLATION14. INSTALLATION14.1 Environmental Enclosure, Connectors and Junction Boxes ...

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-12ohms at the maximum temperature, then, at theminimum temperature, the resistance is:(1-25x0.004)33 ohm

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-1302: P34 Z=X+F01: 1 X Loc mm RAW02: 266 F03: 2 Z Loc [:mm CORECT]7.16 227 GYPSUM SOIL MOISTUREBLOCKSoi

SECTION 7. MEASUREMENT PROGRAMMING EXAMPLES7-147.17 NONLINEAR THERMISTOR INHALF BRIDGE (CAMPBELLSCIENTIFIC MODEL 101)Instruction 11, 107 Thermistor

8-1SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLESThe following examples are intended to illustrate the use of Processing and Program ControlInstr

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-204: P54 Block Move01: 9 No. of Values02: 12 First Source Loc Temp i-803: 1 Source Step04: 11 Fir

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-3Every 15 minutes, the total rain is sent to InputStorage. If the total is greater than 0, outpu

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-4Input Location Assignments:1:TEMP DEG C10:30 SEC 0* 1 Table 1 Programs01: .5 Sec. Execution Inte

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-504: P37 Z=X*F01: 1 X Loc WS02: 10 F03: 4 Z Loc [:WS output]05: P37 Z=X*F01: 3 X Loc 0-540 WD02:

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-609: P91 If Flag01: 11 1 is set02: 30 Then Do10: P34 Z=X+F01: 3 X Loc 0-540 WD02: 360 F03: 3 Z Lo

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-7TABLE 8.6-2. Example Outputs and Input Storage LocationsLEVEL 1 OUTPUTSMEANS LOC VARIANCES LOCC

vSELECTED OPERATING DETAILSThe channel numbering on the Analog InputCard refers to differential measurements. Singleended measurements assume the HI a

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES8-8* 1 Table 1 Programs01: 1 Sec. Execution Interval01: P17 Panel Temperature01: 1 IN Card02: 16 Lo

9-1SECTION 9. INPUT/OUTPUT INSTRUCTIONSTABLE 9-1. Input Voltage Ranges and CodesRange Code Full Scale Range Resolution*Slow Fast16.67ms 250µsInteg.

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-2PAR. DATANO. TYPE DESCRIPTION01: 2 Repetitions02: 2 Range code (Table 9-1)03: 2 Card number for firstmeasureme

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-3TABLE 9-2. Pulse Count ConfigurationCodesCode Configuration00 High frequency pulse, all pulsescounted01 Low l

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-4*** 6 FULL BRIDGE WITH SINGLE ***DIFFERENTIAL MEASUREMENTFUNCTIONThis Instruction is used to apply an excita

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-5PAR. DATANO. TYPE DESCRIPTION01: 2 Repetitions (47 max)02: 2 Excitation range code (Table9-1)03: 2 Bridge rang

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-6The temperature value used incompensating the RH value (Parameter 7)must be obtained (see Instruction 11) prio

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-7PAR. DATANO. TYPE DESCRIPTION01: 2 Repetitions02: 2 Range code (Table 9-1)03: 2 Analog card number04: 2 Single

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-8*** 18 MOVE TIME TO INPUT LOCATION ***FUNCTIONThis instruction takes the current time in tenthsof seconds i

SECTION 9. INPUT/OUTPUT INSTRUCTIONS9-9*** 22 EXCITATION WITH DELAY ***FUNCTIONThis instruction is used in conjunction withothers for measuring a