SMX ED-X - User Manual

The ED-X Digital Display is a marine engine monitoring system designed for QSM11 and 480CE engines, providing users with a comprehensive overview of engine performance and status. It serves as a central interface for displaying critical engine parameters, managing trip data, and alerting users to active faults.

Function Description:

The ED-X display primarily functions as a digital gauge, presenting real-time engine data in various formats. Upon initial power-up, it performs a self-test to ensure proper operation of the datalink, flash, RAM, and LCD, indicating the progress with a bar and showing the currently configured user. The display is designed to be user-configurable, allowing the selection of engine models (QSB, QSC, QSM11, QSX, QSK, QST30) and data link types (J1587 or J1939).

The main operational screen, referred to as the "BASIC PAGE," displays key engine parameters such as Coolant Temperature, Engine Oil Pressure, System Voltage, Instantaneous Fuel Rate, Engine Load, Intake Manifold Temperature, Boost Pressure, Throttle Position, Barometric Pressure, Crankcase Blowby Pressure, and Speed (Boat Speed). Users can navigate between different display groups: "VIEW" (Key 1) for various gauge formats, "TRIP" (Key 2) for trip-related data and statistics, "DISP" (Key 3) for selecting single engine parameters in different formats, and "ADJ" (Key 4) for adjusting parameters.

A crucial function of the ED-X is its alarm system. When an active fault is detected, the display bleeps, and an "ACTIVE FAULT PRESENT" banner flashes across all screens. On the BASIC PAGE, parameters related to active faults will also flash. The ALARM PAGE (accessed via Key 5) lists current active faults in reverse chronological order, allowing users to silence the alarm, read detailed fault information, and clear faults once corrected. The display also provides an external alarm driver output.

Important Technical Specifications:

• Engine Compatibility: QSM11 and 480CE engines. Also configurable for QSB, QSC, QSM11, QSX, QSK, QST30 engine models.
• Data Link Protocols: Supports J1587 and J1939 data types.
• Connectivity: Requires four wires for SAE J1708/J1587 (two for power, two for databus) and four wires for SAE J1939 (two for power, two for databus). Pin assignments include Ground, Keyswitch, NMEA TX (+/-), NMEA RX (+/-), CAN LO (J1939 LO), CAN HI (J1939 HI), J1708/J1587 (+/-), and External Alarm Output.
• Physical Installation: Requires a cutout for the back and four 4.3 mm (0.170") holes for M4 studs. Adequate clearance behind the unit is necessary for cable connection.
• Speed Input: Optional boat speed input can be received from either a GPS (speed over ground) or a speed transducer (speed over water) for marine applications.
• Damping: Configurable from 0-100% to adjust how fast data is updated on the screen.
• Units: Supports English/Metric units.
• RPM Display: Allows adjustment of the RPM value, rounding to the nearest 10's, nearest 5's, or nearest 1's. Default value is set to the nearest 10's.

Usage Features:

• Initial Setup: Guides the user through selecting the engine model and data type upon first power-up. These settings can be corrected later via the Configuration Menu.
• Navigation: Uses a 5-key interface (Key 1-5) for scrolling, selecting, adjusting, and navigating between different screens and menus.
• Parameter Viewing: Users can select and view various engine parameters, with the available parameters depending on the selected engine model. The "ADJUST" key (Key 4) is used to scroll through viewable parameters.
• Display Formats: Offers different display formats for engine parameters, including GRAPH FORMAT, BIG FORMAT, and GAUGE FORMAT, accessible through the "DISP" group (Key 3).
• Trip Data: The "TRIP" group (Key 2) provides access to TOTAL TRIP and STATISTICS data, which accumulate even when the engine is off. This data can be reset using the RESET key. A SPEED GRAPH feature (optional, requires boat speed input) plots boat speed against engine speed.
• Alarm Management: Active alarms trigger visual and audible alerts. The ALARM PAGE allows users to silence the bleeper, view detailed fault information (including fault code, FMI, and SPN), and clear faults.
• Lighting and Contrast: Users can adjust display contrast and backlighting for optimal visibility. A contrast reset feature (pressing the first four keys together) restores contrast to a central value and lighting to maximum if the display becomes unreadable.
• Configuration Menu: Accessible by pressing and holding Key 5 for 3 seconds, this menu allows access to:
  • User Menu: Stores up to six user setups, allowing different users to configure and save their preferred screen parameters. The selected user's name is shown on the startup screen.
  • Setting Menu: Configures Language, Bleep (ON/OFF), Units (English/Metric), Damping (0-100%), Alarm (ON/OFF), and Speed GPS (ON/OFF).
  • Alarm History: Provides snapshot data for the 5 most recent engine fault codes, which cannot be cleared by the user.
  • System Menu: (Intended for Cummins service personnel) Includes DEMO mode (ON/OFF), RESET ALL (resets to factory defaults), UPLOAD (for reprogramming), and ABOUT (summarizes running mode information).
  • Data-Link Menu: Allows selection of engine model, data type (J1939 or J1587), and viewing of raw NMEA messages.
  • RPM Menu: Configures RPM display rounding.
• Menu Exit: Key 5 allows clearing the menu bar from the screen. If no active faults are present, it also allows adjusting display contrast and backlighting. The menu bar automatically disappears after 5 seconds of inactivity but can be immediately hidden with Key 5 or restored by pressing any key except Key 5.

Maintenance Features:

• Self-Test: Performs a self-test on datalink, flash, RAM, and LCD upon power-up to ensure proper functionality.
• Fault Code Display: Displays specific ECM fault codes (Engine Control Module) when active, aiding in troubleshooting. Note that it does not show all possible ECM fault codes.
• Alarm History: Stores the 5 most recent engine fault codes, providing a historical record for diagnostic purposes. These historical codes cannot be cleared by the user.
• Reset All: The System Menu includes a "RESET ALL" function, which resets the display module to factory default settings, useful for troubleshooting or reconfiguring the unit.
• Upload Function: Allows the unit to be reprogrammed, likely for firmware updates or specific configurations by service personnel.
• Wiring Diagram: The appendix provides a wiring diagram for proper installation and connection, including details for external alarm drivers and speed inputs.