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Summary of Contents for Gems LDS4
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Page 1: Operation Manual
Operation Manual Editor: LDS4 Editor v3.42 Hardware: LDS4 06x05 LDS4 intelligent AMOLED colour display system Document Details Document Name: LDS4 Colour Display System Author: Jon Mansfield Date: 14/04/2010 : 18:07... -
Page 3: Table Of Contents
................................. 10 CAN Bus Speed ..............................11 CAN Message Masks ..............................11 Serial Sources ................................. 11 6 The Components of a LDS4 Editor Setup ........................... Part 4 The Setup Editor 1 Gain ........................... 2 Scalar Sensor ........................... 3 Function Table Sensor ........................... - Page 4 LDS4 Colour Display System 11 Bitmask Sensor ........................... 12 Bit String Sensor ........................... 13 Alarm Sensor ........................... 14 Warning Message Sensor ........................... 15 Maths Sensor ........................... 16 Differential Sensor ........................... 17 Bitmap Selector Sensor ........................... 18 Integrator Sensor ........................... 19 Case Sensor ...........................
- Page 5 4 GPS and Onboard Sector Analysis Setup ........................... Using Onboard Sector Analysis ................................. 39 5 LDS4 Brightness ........................... 6 LDS4 Low Side Driver and PWM ........................... 7 LDS4 Calibrated Analogue Transmit ........................... 8 LDS3 Slave Display Setup ........................... Part 8 Transmitting CAN Data...
- Page 6 LDS4 Colour Display System 3 Setup ........................... 4 Edit ........................... 5 Gauge ........................... 6 Colour ........................... 7 Config ........................... 8 Window ........................... 9 Help ........................... Part 12 Appendix B: Example Sensor Calibrations 1 Wheel Speed ........................... 2 Distance ........................... 3 Gear Position ...........................
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Page 7: Part 1 Introducing The Lds4 Colour Display System
· The installation wizard should start automatically. If it does not: · Click on the Windows Start menu and select Run... · In the Open box type X:\LDS4 EditorSETUP.EXE (where X is the drive letter of your CD drive) and click OK. -
Page 8: Part 2 Revision History
Revision History LDS4 Revision History LDS4 firmware is organised into release families. Generally, setups are compatible with different versions in a release family; the major changes made between releases may create some incompatibility with previous versions; this is noted under compatibility issues. -
Page 9: Release 05 Revision History
Current flashing frequency is 1Hz. · Support added for second serial comms channel on LDS4. LDS4 now has dedicated SMS1 support on Serial 1 and serial data stream support on Serial 2. - Page 10 05x08 - 05/05/09 · Changed the LDS4 fast CAN Tx to send A2 and A3 on words 1,2,3 and 4 of the fast CAN Tx message. 05v10 - 12/05/09 ·...
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Page 11: Release 04 Revision History
Release 04 Revision History Known compatibility issues v3.27 or later of LDS4 Editor is required for the firmware version to be reported correctly in the boot loader. This does not affect the firmware version label in the display setup. 04v00 - 22/10/08 - Changes from v3.31 ·... - Page 12 LDS3 setup - this enables the outer pair of shift lights to be used to show indicator and high beam status. Note: Turning this option with LDS4 version 06v00 or earlier will result in unpredictable behaviour. · Added support for day increase and day decrease events for setting day/ month/ year.
- Page 13 CAN. This is toggled with a new event which appears as "Analogue Cal Mode" in the events editor. Note that the LDS4 makes some additional inputs available to show the state - these are shown in the editor as "Analogue n Calibrated" "Analogue n Min", "Analogue n Max"...
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Page 14: Part 3 Creating And Editing Display Setups
· Select File | New | ...with GEMS connection or File | New | ...with external connection as appropriate. · If using GEMS Connection, select a logger setup (.stu) file to act as the basis for the display setup and click the Open button. -
Page 15: Uploading A Setup To A Display
Creating and Editing Display Setups If a setup or LDS4 Editor is closed and the setup has changed since the last save, a prompt will appear asking if the changes to the setup are to be saved. Select Yes to save the changes, No to abandon the changes or Cancel to return to editing the current setup. -
Page 16: External Can Sources
Consequently, if the name of an output is changed in the logger setup and the setup imported, any gauges or LDS4 Editor outputs that use the output must have the named changed as well. It is therefore important to ensure consistency of naming between logger setups. -
Page 17: Can Bus Speed
· If using a GEMS serial stream, it is necessary to set the serial stream properties - these can be imported from a GWv4 sts file using the Import button. The serial data stream Tx from the ECU must be connected to the Serial Rx 1 pin on the LDS4. The Components of a LDS4 Editor Setup A LDS4 Editor setup consists of four logical components: Sources, outputs, sensors and gauges. - Page 18 LDS4 Colour Display System In this example, the raw RPM value is passed to the scaled RPM output which uses a scalar sensor to provide its' output. This is passed to both a bar tacho gauge (which displays the RPM) and the oil pressure alarm output.
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Page 19: Part 4 The Setup Editor
Setup | Display..If a GEMS logger setup has been used as the basis for the display setup, the outputs and sensors imported from the logger setup cannot be changed. This ensures that the values seen on the screen agree with values in the logged data. -
Page 20: Scalar Sensor
LDS4 Colour Display System Scalar Sensor The scalar sensor applies a gain (if specified) to the input which is then multiplied by the scalar and the offset added. If signed is ticked and the gain is not set to NONE, the input is treated as a twos compliment number. -
Page 21: Minimum Sensor
The Setup Editor Minimum Sensor An output using a minimum sensor has two inputs; one for determining the minimum value (the primary input) and a second to reset the minimum value (reset input). When the sensor is reset, its output is cleared and the next value from the primary input is used as its output value. As subsequent data comes in from the primary input the value is compared with the current minimum and if it is less, the new value is set as the current minimum. -
Page 22: Time Filter Sensor
LDS4 Colour Display System Time Filter Sensor Normally, outputs send data to gauges as fast as possible. However, by creating an output using a time filter sensor, it is possible to specify the update rate of the output which is useful for making rapidly changing values more legible. -
Page 23: Ecu String Sensor
The Setup Editor 4.10 ECU String Sensor An output using an ECU String sensor is used to obtain a text string (such as a calibration name) from the connected ECU. The length of the string to obtain is specified in the length column. 4.11 Bitmask Sensor The bitmask sensor is used to mask off bits from a raw (16 bit) input. -
Page 24: Alarm Sensor
LDS4 Colour Display System button to show the bit string editor: The priority determines the order in which the bitmasks are evaluated with low numbers being a higher priority. This ensures that if two bitmasks match, only the highest priority output string is returned from the sensor. -
Page 25: Warning Message Sensor
The Setup Editor 4.14 Warning Message Sensor An output using a warning message sensor is used to output warning messages when inputs are outside of the normal operating range. An output using a warning message sensor uses up to two inputs for each warning defined: ·... -
Page 26: Differential Sensor
LDS4 Colour Display System The Add Input button adds a place marker for an input in the equation. The numbered and mathematical function buttons can be used to add these items to the equation and more advanced mathematical functions can be selected from the list box. -
Page 27: Integrator Sensor
The Setup Editor Bitmap Selections box. · Index - The number of the selection bitmap for which the following settings are made. For example, if the selection count is set to 3, 1 will specify the first selectable bitmap and 2 will specify the second selectable bitmap. -
Page 28: If Sensor
LDS4 Colour Display System 4.20 If Sensor The IF sensor uses two inputs. It passes the specified input through to the output if the conditional input is true non-zero. The If sensor is a pre-defined sensor that does not require any configuration. To use it, select If as the sensor type for an output. -
Page 29: Min, Max And Average Input Editors
The Setup Editor 4.22.1 Min, Max and Average Input Editors This editor is shown when setting the inputs for an output using a minimum, maximum average sensor. 4.22.2 Alarm Input Editor The alarm input editor is shown when setting the inputs for an output using an alarm sensor. -
Page 30: Maths Input Editor
LDS4 Colour Display System 4.22.4 Maths Input Editor This editor is shown when setting the inputs for an output using a maths sensor. The maths equation is shown in the main window. If inputs are unassigned, the word Input is shown in that position of the equation. -
Page 31: Case Input Editor
4.23.2 Analogue Outputs The LDS4 has 7 analogue inputs named A1 Raw, A2 Raw etc. The inputs have 12 bit resolution with a range of 0 to 4095. -
Page 32: Can Status Outputs
· CAN 1 Warning: Errors are present on the bus; this may be due to incorrect baud rate or noise. · CAN 1 Tx not acknowledged: A message sent by the LDS4 has not been acknowledged by any nodes on the network. -
Page 33: Part 5 Display Screens
Display Screens Display Screens GEMS colour displays support 16 screens. The display also has a monitor screen which enables permanent monitoring of data. To display a screen, select it from the screen menu. The Monitor Screen Normally a given output is only monitored if used by a gauge on the currently displayed screen. In certain circumstances however, it is necessary to monitor some outputs irrespective of whether or not they are used by the currently displayed screen page. -
Page 34: Selecting A Gauge
LDS4 Colour Display System Selecting a Gauge A gauge is selected using either the mouse or keyboard. To select a gauge using the mouse, move the cursor over the gauge. If gauges are overlapping the topmost gauge is selected. Try moving the mouse to an area where the gauge to select is not covered by another gauge. -
Page 35: Deleting A Gauge
Display Screens · If the cursor is at the left or right edge of the gauge the cursor changes to an E-W cursor and is resized by dragging that side To resize a gauge using the edit window: · Show the Gauge Property window by right clicking on the selected gauge or by selecting it from the Edit menu. -
Page 36: Part 6 Gauge Reference
The standard gauge properties are as follows: · Name - The name is used to identify the gauge in the Edit menu. LDS4 Colour Display System assigns a name to a new gauge automatically although it is useful to give gauges more meaningful names as it makes them easier to identify in the Edit menu. -
Page 37: Bar Gauges
Gauge Reference place Gauges using time outputs use a different set of format strings: · H - Displays the hours in 24 hour format. · h - Displays the hours in 12 hour format. · m - Displays the minutes. ·... -
Page 38: Text Label Gauge
Text Message Gauge The text message gauge is used to display messages received from a GEMS radio messaging system or GEMS SMS1 text messaging system. This gauge has the following special properties: · Show Urgent Messages Only - In this mode, the gauge is normally hidden but will display over all other gauges when an urgent message is received. -
Page 39: Value Gauge
Note the the SMS1 only transmits small messages - in this case, the Large Font properties are irrelevant. The radio modem or SMS1 module should be connected to the Serial Rx 2 pin on the LDS4. See the SMS1 manual for more information. -
Page 40: Alarm Bar Gauge
LDS4 Colour Display System 6.11 Alarm Bar Gauge The Alarm Bar gauge is a block that changes colour depending on its input. Typically this is used to indicate out-of-range parameters. For example, an Alarm Bar may be placed next to a gauge showing coolant temperature. -
Page 41: Round Tacho Bitmap Gauge
Gauge Reference the output for this line exceeds this value, the line will be drawn at the maximum value. 6.15 Round Tacho Bitmap Gauge The round tacho bitmap gauge allows a scaled pointer or needle to be drawn over a bitmap image of a gauge. -
Page 42: Part 7 Display Configuration
LDS4 Colour Display System Display Configuration This section describes how to use the ancillary functions of the LDS4. Configuring the Page Select Mechanism The screen page select is operated via the screen page analogue input or via a CAN message. -
Page 43: Configuring The Button Press Mechanism
(byte 3) will only take effect if it changes. Configuring the Button Press Mechanism The LDS4 can receive co-driver button inputs either from the button pins on the connector or from messages sent on the CAN. To configure the button inputs select Setup | Controller... to show the controller setup dialog: To use the button input pins, select Connector pins. -
Page 44: Odometer Setup
0x01 Odometer Setup LDS4 has a built in odometer function. This is an internal counter backed up to non-volatile memory that cannot be reset (it is set to zero when the unit is built). To set up the odometer, choose Setup | Odometer. Select an output that is road speed km per second. -
Page 45: Using Onboard Sector Analysis
GPS Source box. Serial GPS Requirements · The GPS unit must be connected to the Serial Rx1 pin on the LDS4. · The GPS unit must be sending out a standard NMEA data stream at 4800 baud. · The $GPGGA and $GPRMC sentences must be implemented. -
Page 46: Lds4 Brightness
LDS4 Low Side Driver and PWM The LDS4 has a low side driver (switched to ground) that can be used to drive a relay or other item that is connected to a positive supply. To configure the low side driver, go to Setup | LDS4 Settings and select the Low Side Driver tab. -
Page 47: Lds3 Slave Display Setup
Note that this feature does not support extended CAN IDs. LDS3 Slave Display Setup The LDS4 can be used to control the GEMS LDS3 lightweight drivers display. This display can show gear position, a four digit number, a warning light and can drive six external shift lights. To setup the LDS3, select Setup | LDS3 Setup. - Page 48 LDS4 Colour Display System In road mode, the remaining shift lights operate as before; the the second light will trigger at 5500 rpm in the above example. LDS4 Colour Display System © 2009 General Engine Management Systems Ltd.
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Page 49: Part 8 Transmitting Can Data
Transmitting CAN Data Transmitting CAN Data Data acquired or calculated by the LDS4 can be transmitted over the CAN. To configure CAN transmit, select Setup | CAN Outputs to show the CAN output dialog: Enter a suitable name for the transmit channel, the CAN code to send it on and the rate at which to send it. - Page 50 · SERIAL NUMBER - Sends the display serial number in 16 bit big endian format. · VERSION - Sends the display firmware version as a 6 byte ASCII string; for example 06v00 . If the firmware supports the GEMS SMS1 text messaging system, a T will be appended to the version, eg 06v00T.
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Page 51: Part 9 Co-Driver Functionality
Co-Driver Functionality Co-Driver Functionality The LDS4 has features that allow it to be used by a co-driver in a rally car. The co-driver functionality is implemented as follows: · Additional inputs for buttons. The behaviour of each button is fully user configurable. -
Page 52: Special Co-Driver Outputs
LDS4 Colour Display System · Change defines the amount the stop watch trigger must change by before the stopwatch is started. If set to zero, the stopwatch will start immediately the value changes. Higher values can be used to ignore any noise in the stopwatch trigger input. -
Page 53: Special Co-Driver Sensors
Co-Driver Functionality Special Co-Driver Sensors Some additional predefined sensors are added to the setup when co-driver support is enabled. Most of these cannot be used to make new outputs but a couple can: · CDTrip SSR - Allows a new countdown output to be created. A countdown output requires an input sensor and allows the reset value and resolution to be set. - Page 54 LDS4 Colour Display System In the Action tab, the effects of each button, stopwatch trigger or alarm are defined. Using the drop down box above the actions box, it is possible to select whether a button will cause an effect on every screen or a particular screen.
- Page 55 Co-Driver Functionality · TotalTripRaw : reset - Resets the total trip to the reset value. countdown toggle outputs created will also be added to the effects list. © 2009 General Engine Management Systems Ltd.
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Page 56: Part 10 Lds4 Hardware
It can be supplied in a case or uncased for mounting directly into a steering wheel. The cased LDS4 is available fitted with 2 x 9 pin auto sport connectors or with a 25 way Souriau. -
Page 57: Lds4 Souriau Case Drawings
19.Low side drive - can be configured as a PWM output by special request. 20.Gnd 21.Speed2 22.Page switch - 12 position switched 1k resistor network to ground 23.Analogue 2 24.Analogue 4 25.Analogue 6 10.1.2 LDS4 Souriau Case Drawings Side Front Rear © 2009 General Engine Management Systems Ltd. -
Page 58: Lds4 Autosport
LDS4 Colour Display System 10.2 LDS4 Autosport 10.2.1 LDS4 AS Pin out The LDS4 AS has the following pin out: Connectors Connector 1, loom side connector: AS-DD606-09SN-HE. Connector 2, loom side connector: AS-DD606-09PN-HE. Pin Out Connector 1: 1. +12V Power 2. -
Page 59: Lds4 As Case Drawing
Where the pin out shows dual Speed/ analogue functionality, both inputs are connected to the pin. Thus, if an analogue signal is connected to the pin, the analogue input will make sense where the speed won't and vice-versa. 10.2.2 LDS4 AS case drawing Front Side Rear ©... -
Page 60: Usb Pin Out
LDS4 Colour Display System 10.3 USB Pin Out USB Pin out If making your own USB cable, it is important to make sure the Data- and Data + wires are twisted together for the full length of the USB cable. -
Page 61: Part 11 Appendix A: Menu Commands
· Serial Comms Setup - Allows the serial data receive to be setup. · LDS4 Settings - Allows the LDS4 brightness and low side driver to be configured. · Import GEMS Logger Setup... - Imports a logger setup into the display setup. This allows the colour display to use the same outputs and sensor calibrations as the data logger and data analysis software. -
Page 62: Edit
LDS4 Colour Display System 11.4 Edit The Edit menu allows gauges and screens to be copied and pasted between screens. Edit | Copy | Screen will copy the current screen into the paste buffer. Edit | Copy | Gauge copies the currently selected gauge. -
Page 63: Help
Appendix A: Menu Commands 11.9 Help Displays the help manual index and contents Selecting About from the Help menu will show the version information for LDS4 Colour Display System. © 2009 General Engine Management Systems Ltd. -
Page 64: Part 12 Appendix B: Example Sensor Calibrations
The speed inputs on LDS4 give a reading in Hz (i.e. pulses per second). When a speed input on the LDS4 is used as a wheel speed input, number of teeth on the sensor wheel can be used to determine the revolutions per second. Thus, if the circumference of the road wheel is know, the wheel speed meters per second and hence kph can be calculated. - Page 65 Appendix B: Example Sensor Calibrations When using an analogue input and a potentiometer to get gear position from the gearbox directly, it is necessary to use a function table on the raw A/D gear position value to produce a gear position number (0 to 8) that can be used with a bit string sensor.
- Page 67 - D - Alarm bar gauge Alarm output Alarm sensor Data source defining Analogue outputs external CAN Average output GEMS Average sensor serial - B - Default colours Defining the data source Bar gauges Deleting gauges Bit string sensor Differential sensor...
- Page 68 Souriau case drawing progressive limit Souriau pin out resizing LDS4 brightness round tacho LDS4 fast analogue CAN Tx round tacho bitmap LDS4 high side driver selecting Limit filter sensor shape - M - standard properties text label...
- Page 69 Index deleting gauges Onboard sector analysis editing gauge properties setup monitor using moving gauges Opening setups resizing gauges Output selecting gauges alarm analogue Selecting gauges average Sensor alarm bitmap selector average case bit string bitmap lap time bitmask maths case maximum differential minimum...
- Page 70 LDS4 Colour Display System - T - Tacho gauges Text label gauge Text message gauge Time filter sensor Toggle sensor Transmitting CAN data - U - Updating firmware Uploading setups USB drivers Installing - V - Value formatting Value gauge...
- Page 71 Crabtree Road Egham Surrey TW20 8RN T. +44 (0)1784 470525 F. +44 (0)1784 47052 www.gems.co.uk...
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