Delta Electronics SS1-UM-1.05 user manual Slink and Rcom, Example using Slink

Page 78

If PsiWin has difficulty establishing the link to the Workabout at any stage, powering down PsiWin and the Workabout and physically remaking the RS232 connections before running them again may clear the problem.

Don't forget to turn off the remote link in the Workabout when you have finished.

SLINK and RCOM

The procedure

For maximum safety, to start with, close down all other applications on the PC, and run everything from the DOS prompt whilst you do this.

Both programs follow a similar procedure in general.

♦On your PC, copy the RCOM and SLINK files on to your hard disk if you have not already done so by following the Getting Started section in the User Manual.

♦On the Workabout, exit the SunData s/w, and set up the Remote Link parameters in the Psion's system.

♦Connect the Workabout comms cable between the RS232 port on the Workabout and the COM1 serial port on your PC. (If you can't use COM1 you must refer to the program documentation to enable it to use COM2).

♦Run whichever program you have chosen, and copy the appropriate files across. Verify that the file names now appear in the new directories.

♦Exit from the transfer program on your PC.

♦Close down the Remote Link on the Workabout.

Example using SLINK

SLINK lets you initiate all the file transfer commands from the Workabout's screens and menus. Consult the earlier section More Psion and file handling notes first if you are not adequately familiar with the Psion's routines.

On the Workabout:

♦Exit from the SunData application (if necessary) by pressing ∪ +X.

♦In the System Screen, press Menu, Spec, Remote Link, and press Enter. Set the

Remote link to On, Baud rate to 9600, and the Port to A. Press Enter to accept.

♦Connect the RS232 port at the top right of the Workabout to the PC’s COM1 serial port with the SunScan comms cable.

On your PC:

♦Exit Windows. From the DOS prompt, in the directory holding SLINK.EXE,

type: SLINK ↵

You will get an SLINK acknowledgement like this (or similar):

Psion MC/HC/Series3 File Server Version 1.2 - Copyright (C) Psion Plc 1991 Press Q to Quit

As an example, let us consider how to transfer a new version of the SunData program to the Workabout from your PC. We will assume you have already copied the program file SunData.app into a directory called C:\SUNSCAN\PSION on your Hard Disk.

The same process can be used if you need to re-load the SunData program for any reason.

SunData.app needs to run from a subdirectory \SUN\ on the Internal drive. You must create this, if it is not already present.

On the Workabout:

78 • Appendices

Document code: SS1-UM-1.05

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Contents SunScan SS1-UM-1.05Trademarks CopyrightAcknowledgements CE conformityContents LAI theory Menus and Screens More Psion and file handling notesMeasurement options Technical Reference sectionAppendices IndexSunScan Canopy Analysis System How to use the manualsIntroduction Organisation of this manualBeam Fraction sensor Field accessoriesSunScan probe Data Collection TerminalGetting Started Preliminary checksWorkabout and SunScan probe Checking the Workabout hardware SunData s/w Diskette Installing the SunData s/w in your PCInstalling the s/w What the s/w doesSetting up your PCs COM port Running SunDataCommunication checks SunScan probe to PCWorkabout to PC Running SunData in Windows SunScan Tutorial About this tutorialWorking with the Workabout What to do if you get lost Starting SunData in the WorkaboutUsing a PC instead of the Workabout Starting the PC softwareThis page is intentionally blank Setting up a measurement session Working through the menu optionsFile Saving Hot KeysUsing the Emulator mode Taking readingsConnecting the SunScan probe Without a Beam Fraction SensorConnecting the Beam Fraction Sensor Measuring Leaf Area Index without a Beam Fraction Sensor Reviewing your data file AveragesTransferring the data file to your PC From the WorkaboutTo the PC Initiating the file transfer from the Workabout Meanwhile, on the PC RS232 communication problems Conclusion of the TutorialSunData Screens on the Workabout Settings Menus and ScreensFile Contd UtilsQuit Workabout User Guide More Psion and file handling notesNavigating Psion directories and screens Navigating the Psion directories and screensPsion subdirectory usage in file select dialogs Re-installing the SunData application icon Deleting unwanted Workabout filesFlashcards reformatting Configuration and data file handling SunData Configuration filesData memory management Restoring a configuration Default .cfgCreating a configuration file Data filesDisplaying data files on your PC .PRN file.CSV file Data file layouts and data groups Page Measurement options Experiment designAbove-canopy reference requirements Canopy Sampling volume Canopy type and BFS practicalitiesCanopy type and LAI estimates Preferred light and weather conditions Planning for the sun’s positionAdvice on Absorption and Eladp values Setting EladpAbsorption Relationship between Mean Leaf Angle and Eladp Estimating Eladp in the fieldWorkabout setup SunScan System Measurement modesLAI, PAR and All displays Autolog function Probe GO button Measurement procedures in the fieldProbe handling in the field Levelling the probeUse of the tripod Using the tripodBFS handling in the field WorkaboutFinding North, and setting the shade ring Levelling the BFSExtension cables, and the location of the BFS Checking the probe/BFS matching PAR calibrationsFactory light calibration Recalibrate optionEffect of the shade ring on the BFS Routine maintenance and cleaningRestoring the factory calibration Comparing the calibration with other PAR sensorsEnvironmental and moisture protection SunScan probe and Beam Fraction SensorLAI theory Ingredients of the LAI computation methodDerivation of Wood’s SunScan canopy analysis equations Major assumptionsTheory versus reality Beers law for canopy absorption Campbells Ellipsoidal LAD equationsTransmission of Diffuse Light Transmission fraction τ Is given by I/I0 Modelling the canopy transmission Diffuse light transmission cosine corrected sensorDetail Diffuse light cosine response sensor Functions used to model canopy transmissionAccuracy of LAI calculations Diffuse light hemispherical response sensorModelling incomplete PAR absorption and scattering Exp 0.1 . x . atan 0.9 Atan L Q SpherScientific references Calculating zenith anglesSummary Jones, Hamlyn G Plants and Microclimate second edition. CUP Checking the batteries Maintenance and repairTechnical Reference section SunScan probe batteriesChecking the desiccant Re-setting the factory calibration Checking the PAR calibrationFactory calibration method Psion Workabout TroubleshootingProblems running the SunData application While running SunDataInsufficient power to write data reported Technical Support Beam Fraction Sensor type BF1 SpecificationsSunScan Probe Type SS1 Data Collection Terminal type DCT1 Psion WorkaboutSpares Kit type SPS1 Carrying Case type SCC1Telescopic Tripod type BFT1 Logging CablesPAR Performance Spectral responseCosine responses of probe and BFS SunScan system cosine responseAppendices Logging the probe as a Linear Quantum SensorLogging the Beam Fraction sensor Workabout SunData s/w Upgrading the SunScan systemSunData PC s/w Revision HistoryPsiWin File transfer between Workabout and PCChoice of different programs Workabout Remote LinkExample using Slink Slink and RcomDrives on the PC are referred to as REMA, Remc REM = remote Example using Rcom Documentation of Rcom and SlinkSending a file to a Communication program Using the Workabout Comms applicationAlternative file transfer mechanisms Sending a file to a serial printerGlossary Page Index AccuracyIndex Field use 39, 46, 48, 50, 51, 58

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