LONG BLOCK M 20R1369 - Caterpillar

Quad Gauge Unit
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(1) Engine oil pressure
(2) Engine coolant temperature
(3) Fuel pressure
(4) Battery VoltageThe quad gauge unit displays the following information: engine oil pressure, engine coolant temperature, battery voltage, and fuel pressureNote: The gauge needles may not always return to zero position when the engine is not running.Note: For detailed information on the exact parameters for your engine, refer to the Operation and Maintenance Manual, "Gauges and Indicators".Tachometer Unit
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(1) TachometerThe tachometer displays the engine speed (rpm) on an analog gauge.Note: For detailed information on the exact parameters for your engine, refer to the Operation and Maintenance Manual, "Gauges and Indicators".Marine Engine Control Panel I (MECP I)
Illustration 3 g06283610Note: An engine which is equipped with a pod drive unit may have a separate control system.The MECP I is an off-engine mounted panel that gives the user key switch, start, and stop functionalities in the engine room. The MECP I also has the ability to monitor engine communications to show the user valuable vessel information, and alert the user of any diagnostic warnings.The MECP I has been developed to use the J1939 protocol, and is programmed accordingly.For more detailed information on the panel, refer to Communication Data Link
The EMS provides two pins that are connected to the data link. The data link is available to share data with other modules. The ECM processes engine parameters. The parameters will then be transmitted to the EMS through the data link. The EMS receives the information. The information is then displayed on various gauges.