The Woodward Large Engine Control Module (LECM) manages and controls reciprocating engines (gas, diesel, or dual fuel) used in power generation, marine propulsion, locomotive and industrial engine, and process markets. The LECM provides a single, engine-mounted module that can be used to control all aspects of the engine’s operation, including speed and load control, air/fuel ratio control, ignition or injector control, misfire and knock detection, air/gas/exhaust flow control, the engine’s start and stop routines, along with all the monitoring and engine-protection-related alarms associated with each function, as well as on-board data logging and communications. The LECM’s software also allows control system designers to insert their own market-differentiating control algorithms. This single-module approach lowers hardware, wiring, and troubleshooting costs, as well as reducing development and installation time. Additional advantages come from having only one software service tool to learn and support.