PRS Windows Manual

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TABLE OF CONTENTS

1 INTRODUCTION 22 INSTALLATION 2

2.1 SOFTWARE VERSIONS 22.1.1 UN-INSTALLING PREVIOUSLY LOADED SOFTWARE 2

3 INSTALLING PRS FOR WINDOWS 34 GETTING STARTED 4

4.1 PRS TUNING SCREEN 55 SOFTWARE FEATURES 6

5.1 DISPLAY ITEMS 65.1.1 DISPLAY SETUP 7

5.2 RUNNING CONDITIONS 86 TOOLS MENU 97 GLOBAL SETTINGS MENU 10

7.1 GLOBAL 107.2 AFR (AIR FUEL RATIO) 107.3 LIMITS 107.4 COMPENSATION 117.5 CYLINDERS 117.6 PRIME 117.7 IDLE 117.8 MODES 12

8 COMPENSATION 129 FUNCTION ASSIGNMENTS 1310 SCALE SETTINGS 14

10.1 RPM SCALE 1410.2 DEFLECTION (THROTTLE) 14

11 MAPS 1411.1 MAP DISPLAY 1411.2 2D MAPS 15

11.2.1 FUEL MAP (F1) 1611.2.2 IGNITION MAP (F2) 1611.2.3 LAMBDA MAP (F3) 16

11.3 3D MAPS 1712 SAVING AND BACKING UP MAP FILES 19

12.1 SAVING FILES 1912.2 LOADING NEW FILES 1912.3 BACKING UP 19

13 OFFLINE MODE 2014 CONCLUSION 20

PRS WINDOWS MANUAL Visit us at www.perfectpower.com 1/26/2004 1


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1 INTRODUCTION

This manual will assist you with operating the Windows Tuning Software for the Perfect Power PRSrange of units, including PRS2, PRS4 and PRS8. All the information and steps in this manual arebased on the latest Microsoft Windows operating system (from Windows 98 and later, excludingWindows ME).

Please use this manual in conjunction with the PRS Technical Manual, as well as the PRSInstallation Guide. For details on tuning and further technical information and explanations, refer

to the PRS Technical Manual.

If you have any suggestions, questions or comments, please feel free to contact us with anyfeedback at [email protected].

The pictures in this manual are used as a guideline only.

2 INSTALLATION

2.1 SOFTWARE VERSIONS

If you have already installed the PRS Windows software, it is advisable to un-install the versionyou have, in preparation for installing the latest version. The software you are running may have

been updated and youll need to have the latest software running at all times.

Check the Software Downloads section on our website, http://www.perfectpower.com/,from time to time for updated versions of the PRS Windows Software.

2.1.1 UN-INSTALLING PREVIOUSLY LOADED SOFTWARE

If you have Perfect Powers PRS software already loaded, it is advisable to un-install this softwareprior to installing a more recent version of the software.

To un-install the current tuning software, click on the button, then select Settings andthen Control Panel. Once in Control Panel, select the icon Add/Remove Programs and clickon the Change/Remove button under the relevant software name, e.g. PRS.

Follow the prompts and make sure that the software has been removed. You will now be ready toinstall the latest PRS Windows Software.

mailto:[email protected]://www.perfectpower.com/http://www.perfectpower.com/mailto:[email protected]


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3 INSTALLING PRS FOR WINDOWS

The PRS Windows Tuning software can be found either on our website at www.perfectpower.comor on the latest PRS Development CD. This CD is provided when you purchase a PRS Kit.

If you are installing from the CD, an Auto Start shouldautomatically appear once you load the CD into the

PCs CD-Rom drive. Click on the menu item WindowsSoftware and then select the installation method that

you prefer. The software will be unzipped first. Thenselect the button to install the software and follow theprompts.

The software available on the Internet can bedownloaded in two formats: a three part floppy disk ora single installation. The three file version which fits on

three separate floppy (1.44MB) disks, is suitable forlaptops that dont have an internet connection or a cd-rom drive. The single format, is a large file that you

will need to save directly on your PC hard drive.

If using the three floppy disk option, place disk 1 into your floppy drive, open Windows Exploreror My Network Places. Go to the floppy drive, by double clicking on the icon 3 Floppy and

then double click on the file PRSD1. After the program has been executed and installed its files,place disk 2 into the drive and double click on PRSD2. Once this has been done, insert the third

disk and double click on PRSD3. Once disk 3 has finished copying its files, it will automaticallystart the installation procedure. Follow the prompts on the screen to install the software.

If using the single file option, open Windows Explorer or My Network Places, go to thedirectory where you saved the file and double click on PRS_CD_SETUP. Follow the prompts.

If you have downloaded the installation file(s) from the Internet, we suggest that you save themon your hard drive, so that you dont have to download them again. Should you need to re-installthe software or install it on another machine, it will be readily available. However, please visit our

Software Downloads page regularly and check for upgraded versions.

Note: The PRS Windows Tuning Software was developed for the PRS unit only. It willnot work with SMT6 units, SMT5 unit or any other Perfect Power product that has beendeveloped up to this point.

http://www.perfectpower.com/http://www.perfectpower.com/


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4 GETTING STARTED

You dont have to install a unit into a car to confirm if the software is working and installedcorrectly. You can run the software without the unit being connected.

When setting up the tuning software with a unit, follow the steps below:

1) Take a PRS unit and connect it to itswiring harness.

Laptop

Comm'sport

Comm'scable

P.R.S

Power (red)

Ground(black)

Comm'scable

2) Supply 12V power to the red andblack wires on the PRS. Red ispositive, black is negative.

3) Connect the comms cable to thecomms port of a laptop or desktopcomputer.

4) Connect the other end of the comms

cable to the PRS, as depicted on theleft.

5) Run the PRS tuning software by

selecting the PRSWin icon under

the menu.

WARNING: Never unplug the PRS unit and its harness or comms cable without

first switching off the power to the unit.

PLEASE NOTE: If you have the latest laptop with only a USB connection, you

will need to purchase a USB to Serial Port adapter. This will then enable you toconnect to the PRS unit and laptop using the PRS Comms Cable. DO NOT use

any other communications cable as this will damage your PRS Unit.

The first screen (see an example to the right) that will bedisplayed gives you the option of selecting the Communication

Mode being Off Line or Online. Select Online, as you will beconnected to a PRS unit. Then select the specific PRS productthat you have, by clicking on the Radio Button for either PRS 2,PRS 4 or PRS 8. Then click on button Continue>>. Even if youdont click on Continue >>, the program will automaticallycontinue. Please also note that the software version number isdisplayed on this screen. In this example, it is Version 2.1.68.

The software should automatically communicate with the unit.In the case of no communications, a NO COMMS message willbe displayed on the bottom of the main screen, after the firstscreen:

If no communication occurs, check the

following:

1) Confirm that the power supply you are using is 12V and correctly connected.2) Ensure the comms cable is the one that was supplied with the PRS and that it is connected

securely to the PC or laptop and the wiring harness.

3) Check that the comms cable is not faulty and that the pins inside the connectors have notbeen bent, pushed in or broken off.4) Make sure you are using the correct comms port, the software defaults to com1. Comms

port changes can be made under Tools on the Menu Bar in the Windows Tuning software.



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When ready to use the software, make sure the software is set to On Line. More information isavailable in the Off Line Mode section of this manual. If a unit is Off Line it will be displayedon the bottom of the screen as shown below. Go online by clicking the Go Online hyperlink inblue shown below:

4.1 PRS TUNING SCREEN

An example of the main tuning screen connected to a running unit is shown above. Take note

that the unit shows no errors on the main screen and the default map information has been

loaded.

No. Description

1 Bar graphs show the status of particular indicators via a moving bar graph and the text

display on the right hand side of the graph.

2 Blank space for unused bar graphs.

3 Map indicator. This map is currently on Map A.

4 RPM indicator graph. Fluctuates up and down according to vehicles RPM.

5 Text display can be setup to display a numerical value of a PRS indicator.

6 Setup display button. Used to setup the bar graphs, text display and line graphs.

7 Commands field. Allows you to place data in the maps as well as execute DOS commands.(Refer to PRS DOS Commands under the Tools Menu.)

8 Blank slots for extra text displays.9 Line graph display. Line graphs of Analog inputs, outputs and RPM readings. Also displays

error and status messages. Go On-Line hyperlink will be displayed in bottom right handcorner if you are Off-line.

10 Tabs for separate map screens. This example shows the Analog map. By clicking on each tab,other maps will be shown (Ignition and Lambda).

11 Green cursor. Values are entered in the cell where this cursor sits.

12 Fuel AMP curve. 1x16 map. Cursor moves up and down depending on MAP sensor reading.

13 Main 8x16 map. The cursor on this map is affected by throttle position value and the RPMreading.

14 Touch tuning tabs. Clicking on these buttons will increment or decrement the mapmodification value on the selected main 8x16 map. A difference will be shown on the cell

where the real time red cursor sits.15 Real time cursor (Red). The red cursor moves along the map. In this example, it is currently

sitting at 44% throttle and 8027 RPM.

16 Cursors current position showing AMP reading above 0.91Bar and below 0.98Bar.

Go OnlineHyperlink



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5 SOFTWARE FEATURES

5.1 DISPLAY ITEMS Menu Bar

Sensor status is monitored on screen by the following displays:

1) Line GraphsThe line graph display feature on the bottomof the screen is able to display three differentPRS indicators or sensor statuses. The legendor key, at the top of the graph indicates which

colour belongs to which sensor. This displayis effective for determining trends and bug

) Bar Graphs

dings thatre used when you can only keep one eye on the tuning screen.

) Text Display

n be setup under Display Setup.his is useful when an accurate reading is required.

Legend or Key ofgraph line colors.

tracing problem signals.

2

The bar graph display feature, shows fluctuating bar graphs representingthe status of user defined PRS indicators. This is useful for reaa

3

The text display feature shows the actual value of a PRS indicator. The user can display

up to ten different text displays and this display caT



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5.1.1 DISPLAY SETUP

You can change the layout of the main tuning screen by clicking on the Setup Display buttonfound on the bottom left hand side of the main tuning screen.

The Display Setup is divided into four columns, as described below:

Indicators Name Description

Throttle Deflection Displays the throttle position reading as a percentage.

Manifold Pressure Input Displays manifold pressure reading.

Battery Input Voltage Shows the battery voltage.

Engine Temp Indicates engine temp reading.

Air Temp Indicates air temperature reading.

AFR Input Reading of the lambda sensor in AFRs.

Fuel_m Injector open time.

Ignition Current ignition advance or retard value.

Fengt Map Output Map modification value on compensation map for the engine tempsensor.

Fairt Map Output Map modification value on compensation map for the air temp

sensor.

Oxy (Lambda) Comp. Current compensation value on the oxygen sensor map.

Battery Compensation Compensation value to fuel based on battery voltage.

Injector Utilisation Percentage of injector utilisation between cycles.

RPM Reading Displays RPM reading.

Acc Compensation Compensation to the fuel map based on acceleration.

Lambda Voltage Incoming voltage reading of the lambda sensor.

GRAPH ON

This feature selects an indicator for the line graph to be displayed. It consists of a check box,

which you need to check or tick to select the indicators you want displayed. You can select amaximum of three graphs.

BAR Indication POSI

This feature enables the bar graphs to be displayed and their position. Click on the drop-down

menu and select a number. The number indicates the position of the graph in the bar graphdisplay section, on the main screen. Selecting zero will disable the graph, i.e. it will not appear onthe bar graph section. For example: if you had selected 1 as the POSI, this graph would

appear at the top of the bar graph section. You can select to display a maximum of six graphs.



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TEXT Indication POSI

Similar to the BAR Indication POSI, this feature allows you to select the position of your text.For example: if you had selected 1 as the POSI, the text would be at the top of the Textdisplay. A value of zero disables the indicator and it will not appear. You can select to display a

maximum of ten text displays.

5.1.1.1 ADVANCED SETTINGS IN DISPLAY SETUP

On the Display Setup dialog box, you have the option of Advanced Settings. Click on theAdvanced Settings button to switch on the section called Advanced Settings. The Advanced

Settings is made up of three additional columns, which are displayed between the IndicatorsName and GRAPH ON columns.

Advanced settings ONDisplay NameThis feature allows the User toconfigure his/her own name for

the selected indicator.

Min and MaxThe Min and Max values, allowyou to change the scale of themaps. This is particularly usefulfor the line graph indicators.

5.2 RUNNING CONDITIONS

RPMDisplays the RPM of the engine as a bar graph.

MapThis shows which Map is active. You can switch maps here by clicking onthe A or B button. See the section on Map Changing for more

information.

Version

Version displays the firmware/hardware version number inside theprocessor of the PRS unit. When you connect your laptop to a unit, theversion number will change to the actual hardware version number.

Inj. UtilThe percentage of the injectors which are used between cycles.

Blank FieldYou can use this field to place data or values in the maps (such as set-up scales) or you can enterDOS commands from the PRS DOS software. A summary of DOS commands can also be found byselecting DOS Commands Help under Tools on the main screen menu bar.



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6 TOOLS MENU

The Tools Menu item controls some of the basic operations of the tuning software as describedbelow:

Tools Menu Item Description

Upload from PRS Uploads files and settings from the PRS to the screen.

Download to PRS Downloads settings from the screen to the PRS unit.

PRS Hardware Version Displays the units firmware or hardware version. This versionnumber is also displayed on the main screen under RunningConditions. When you are connected to a PRS unit and are

Online this version number will be updated to the version on thePRS unit.

Start logging PRS Logs data to a file stored on the tuning PC. This file can be

accessed using any text reader and is programmed to save on yourhard drive, with the following path: C:\Program Files\PRSWINDirectory\Folder as PRS.XXX where XXX is a number from 000 to999. The following is an example of such a file:

DOS Commands Help Lists a summary of all the DOS commands (hotkeys) that can be

placed in the DOS commands field, found on the bottom left handside of the tuning screen.

Test Dates Display factory test dates.

PRS MAP APRS MAP B

Select either option to switch between the two maps.

Comm Port 1 to 4 Select the required comms port from 1 to 4.Reset PRSx hardware Select to re-set the PRS unit (on and off). Software settings will

not be lost.



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7 GLOBAL SETTINGS MENU

The Global Settings menu is probably the most important section of the PRS Windows TuningSoftware. The Global Settings provide the main settings in the unit, which allow the user to setthe PRS to work on a specific car or application. To view and change the global settings, click on

Global Settings on the Menu Bar of the main screen. The Global Parameter Setup dialog boxwill then be displayed. It is made up of eight different sections indicated by the relevant tab, e.g.

AFR.

7.1 GLOBAL

Item Description

Ignition base line Amount of physical advancebetween the CB1 sensor and CB1pickup in relation to TDC.

Injector range Fuel pressure equivalent value.

Dwell time Charge time given to ignition coil.

Pulse per turn Number of teeth on the wheel(including missing teeth).

Pulses per firing Number off teeth per firing on

wheel.

Base pulse position Used to create a mechanicaladvance. See PRS ApplicationNotes.

Rotary lead Rotary lead timing in rotary

engines. This is not applicable tostandard engines.

7.2 AFR (AIR FUEL RATIO)Item Description

AFR Idle loop time Cycle time of AFR adjustments at

1st TPS column.

AFR operation looptime

Cycle time for AFR adjustments forall other TPS columns

7.3 LIMITS

Item Description

AMP fuel limit Fuel is cut when AMP reaches this

reading.

Eng. Temp fuel limit Fuel is cut based on engine temp.

RPM fuel limit Fuel is cut at this RPM reading.

RPM retard limit Retard RPM at this reading (soft

cut).Adv. ignition limit Max. allowed ignition advance.

Ret. ignition limit Max. allowed ignition retard.



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7.4 COMPENSATION

Item Description

Accel. detection Sensitivity of acceleration

detection for the accelerationcompensation map.

Battery compensation Amount of fuel added by batterycompensation for every 0.33 voltsbellow 12V

Turbo launch RPM (only inPRS8)

The RPM level that the launchcontrol will try to maintain onceengaged. (Only operational in thePRS8).

7.5 CYLINDERS

Item Description

Cylinders The number of cylinders in engine.

7.6 PRIME

Item Description

Prime cycles The number of pulse injectioncycles you want when priming fuel.

Prime injection The quantity of fuel added with

every prime pulse.

Prime temp. limit The temperature limit wherepriming is disengaged.

7.7 IDLE

Item Description

Idle RPM Target Target RPM for idle motor.

Idle motor open The position that the motor should

assume (current), when the RPMsare lower than the target.

Idle motor close The position that the motor should

assume, when RPM is higher thanits target.

Idle loop time The idle loop time between idlemotor updates. A value of 1

represents a fast reaction time and255 extremely slow reaction time.



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7.8 MODES

Item Description

Missing tooth For missing tooth wheels.

Oxy loop reset Oxy compensation value is resetback to zero when it moves to

another cell.Positive trigger Trigger on positive edge of CB1

pulse.

Odd firing ignition *Not yet operational*

Parallel injection Parallel injection sequence.

Multiple coils Multiple coil output. (Pairs only).

Rotary 13B mode For Rotary engine only.

Batch seq. inj. Batch sequential injectionsequence.

Short idle dwell Short dwell during cranking.

8 COMPENSATION

This screen is responsible for extra fuel and ignition compensation on maps based ontemperature, AMP and acceleration (RPM) enrichment settings. Temperature is added to the

ignition and fuel maps. This screen also has maps for controlling nitrous or boost solenoid andstaged injection.

Item Description

Fengt Fuel added to the main fuel map,

based on the engine temp reading.Fairt Fuel added to the main fuel map,

based on the air temp reading.

Iengt Timing added to the main ignitionmap, based on the engine tempreading.

Farpm Fuel added during acceleration in

conjunction with the acceldetection under global settings.

Xrpm Linked to the injection stage output

under function assignment.

Yrpm Linked to the PWM NOX output

under function assignment. Fixedfrequency output where the pulsewidth can be changed.

Xamp Linked to the injection XAMPoutput under function assignment.

Used for staging extra injectors.

Yamp Not used.



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9 FUNCTION ASSIGNMENTS

When assigning drivers, three areas need to be used in conjunction with one another:

Global Settings

Compensation, and

Function Assignments

The Function Assignment Setup is used to assign functions to the drivers in the PRS (assign torelevant outputs).

Item Description

Engine Temp Fuel added to the main fuel map, basedon the engine temp reading.

Air Temp Output engages at the assigned airtemp reading.

Throttle Output engages at the preset throttlereading.

AMP PWM Pulse width modulated output engagedat a set AMP reading.

AMP On/Off Switched output based on a set ampreading.

RPM #1 On/Off Output switched according to the

preset rpm reading

RPM #2 On/Off Output switched according to thepreset rpm reading

2 Wire Idle Output for the idle motor. Settingsmade under global settings.

3 Wire Idle Second output for a 3 wire idle motor.

Settings made under global settings

P. injectionstage XRPM

The output is operated together withthe injector #1 output function and theoverall fuel is proportionally reduced as

specified in the Xrpm Map.

On/Off injstage

The output is switched on when a valueother than zero is in the XRPM map andthe fuel is proportionally reduced.

PWM nox YRPM Output is linked to the YRPM map.

Injection XAMP Output linked to the XAMP map.

Rev counter Rev counter output.

Rotary lead. ign Rotary lead ignition output.

Blinker Square wave output for a flashing light.

Injectionoutputs

Outputs to injectors.

Ignition

outputs

Outputs to ignition. The following

outputs can be assigned on thefollowing PRS units:

PRS2: F1, F2.PRS4: F1, F2, F3.

PRS8: F1, F2, F3, F4.



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10 SCALE SETTINGS

RPM and Deflection scales are used to calibrate the limits of the RPM and Deflection.

Click on Scale Settings on the Menu Bar and select either RPM or Deflection.

10.1 RPM SCALE

To make a linear scale from minimum to maximum, place anumerical value in the minimum block, as well as the maximum

block (under Min Max). Click the Activate Function check boxand then click on the Apply button. This will update the bargraph to the new maximum and minimum values.

There are 16 bars in the bar graph and each bar represents asingle step on the map. To modify a single bar, use the keys asdescribed under Navigation. Once you have made the necessary

changes, click on the bottom Apply button for the changes totake effect. Once all changes have been made, click on OK.

Note: When setting the RPM column you should not make it lower than 600 RPM. It isadvisable to get it to idle on the second row from the bottom moving up, and not thebottom (first) row.

10.2 DEFLECTION (THROTTLE)

The Deflection Scale works in the same way as the RPM scalesetup. The only difference is that there are only 8 bars (steps) inthe scale instead of 16.

11 MAPS

The actual tuning is done using the Maps. Values in the maps are used to modify the signalsgoing into the PRS unit and allow you to specify the amount of change at certain set levels.

The windows software is capable of displaying 2D and 3D maps.

11.1 MAP DISPLAY

Maps can be switched either by clicking on the map tabs or by pressing F1, F2 or F3 on thekeyboard.

The map is made up of one 8 x 16 map (vertical movement is RPM, horizontal movement isdeflection), and one 1 x 16 map (linked to the AMP or engine temp sensor).

RPM, temperature and AMP Scale calibration is discussed in the section Scale Settings.



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11.2 2D MAPS

Although there is a Menu item called 2DMaps, you can select the map you wantby clicking on the relevant tab on theMain Screen.

1 x 16map

8 x 16map

Map Tabs

Describe how to use the Function Keys :

F6, F7, F8 and F9.

An entire columns contents can be changed by using the SC DOS command in the blankcommand field found on the bottom left hand side of the screen.

Selecting fromthe Tabs

Selectingfrom theMenu

The red cursor on the map screen shows where the engine is running. You can increase ordecrease values at this point by pressing F6 F7 for fuel and F8 F9 for ignition.



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11.2.1 FUEL MAP (F1)

Values on the main 8 x 16 map are multiplied by the valuepointed to on the 1 x 16 Row Fuel AMP map.

11.2.2 IGNITION MAP (F2)

Values on the small 1 x 16 IGN AMP map are added or subtractedfrom the main 8x16 map.

11.2.3 LAMBDA MAP (F3)

This map works differently to the previous maps. The values onthe maps are limits to fuel changes that the closed loop mode willmake in order to reach a certain lambda target.

Lambda targets are on the bottom of the screen, each row willadd or subtract fuel from the main map according to the reading

on the lambda sensor input. Physical adjustments are limited bythe values in the cells on the main map.



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11.3 3D MAPS

By clicking on the Menu item 3D Map you will have three options: Fuel Graph, Ignition Graphand Lambda Graph.

Selecting

from theMenu

The above screen shows the Fuel Map. Please note that the 3D maps only deal with the main8 x 16 map. There is no 3D representation of the 1 x 16 row map found on the right hand side ofthe map section. The red cross, shows where the engine is running, while the green cross showsthe cursor position. Buttons F4 - F9 can be used to modify the red crosss height. When you dothis, the gradient on this point of the graph will move up or down. Green cross positions aremodified by pressing the Page Up and Page Down keys or + and keys, on the keyboard.

You also have the option of raising entire rows or columns proportionally or at the selected pointonly. The following map shows a horizontal proportionate change. This is done by adjusting allpoints proportionally on the left of the screen. You can do this horizontally or vertically. It raisesthe entire row by the same value.



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The next screen picture shows a selected point change. Click on the relevant Horizontal orVertical radio button under Adjust all to selected point. The entire row is raised to the samepoint as the selected point.

Adjusting the slider bars on the left of the screen can also change the appearance of the graph.

These bars will allow you to rotate the graph to the best viewing angle for your application.

To reset the graph position and viewing angle, click on Reset on the Menu bar.



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12 SAVING AND BACKING UP MAP FILES

Once you have completed your installation, you can save your work to your laptop or PC.

12.1 SAVING FILES

To save a file, click on File from the Menu Bar and select Save or Save As. Type in yourfilename, and click on the Save button.

You will then get a dialog box, which will allow you to select the make, model, year, type of map,map name and file name of the file you are saving. Type in the details and click on the Save

button to save the file.

12.2 LOADING NEW FILES

To load a new file, click on File from

the Menu Bar and select Load TuneMap. A screen called Load PRS TuneMaps and Configuration files will bedisplayed.

Select one of the maps from the list and

click on the Load Map >> button

. This will take the selected

map and download it onto the PRS unit.

12.3 BACKING UP

It is advisable to back up your work periodically. To do this, place a blankfloppy disk into your floppy disk drive (this is usually the A: drive). Clickon File on the Menu Bar, and select Backup Maps to A:. Your file(s) willthen be backed up to the disk.

When you want to restore the backed up files, place the disk with therelevant backed up files into the floppy drive. Click on File on the Menu

Bar and select Restore Maps from A:. Your file(s) or map(s) will then be restored to your tuning

directory.



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13 OFFLINE MODE

One of the new features of this software is the Off Line mode. In this mode the User can modifyfiles or maps and save them without having a unit connected to it. This mode can either beenabled on the first screen during Start Up (see below) or selecting Off-Line from Status onthe Menu Bar.

While you are in the Off-Line mode, you have the option of running the playback feature. Thisfeature loads a previously saved log file or map and simulates the log file conditions, based on thedata in the log file. To do this, click on Play Back (Off-Line) on the Menu Bar.

Item Description

Load Play Back File Load the log file you want to playback

Run Run the file you want played back

Pause Pause the play back

Stop Stop the play back. This will alsoreturn to the beginning of the file.

If you select Load Play Back File, click on the relevant file and click on Open. Your file will be

played back automatically. You will see that the status will change to Play Back in the bottomleft hand side of the main tuning screen.

Selecting fromthe Menu

Click here oninitial start up

14 CONCLUSION

We suggest that you also check the various Application Notes (available from the Internet in the Downloads section). These notes provide useful tips and hints from various applications with

the PRS unit.

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