The DE-4000 Configurable Saftey Shutdown and Control System utilizes state of the art microcontrollers and microprocessors as well as a robust software stack to provide users of compressors and other critical rotating equipment with a sophisticated, yet reliable, means of protecting and controlling both the prime mover and the load machine (compressor, pump, etc.). Incorporating an “intelligent” add-on board system, the DE-4000 system is fully scalable, allowing users to incorporate a single control system technology across a wide range of applications. The base DE-4000 configuration offers 12 digital and 4 analog outputs, as well as 32 inputs that can be individually configured for use with switch contacts, thermocouples, or analog transducers. A maximized DE-4000 configuration provides 44 digital and 20 analog outputs and 160 configurable inputs. This approach also allows for a single control system to be used across a fleet of units, thus simplifying maintenance and part stocking requirements, along with system training requirements for operating personnel. Ease of system setup and configuration sets the DE-4000 apart from other PLC-style or competitive controllers. Ethernet-based connectivity to the device and an intuitive, Web-based configuration tool for system configuration eliminates the need for any knowledge of ladder-logic or other functional programming languages. Ethernet communications are fully supported for remote monitoring and/or control applications.