HEST High Exhaust System Temperature
Initiates when DPF filter is full in conjunction with an extra fuel injector in the
exhaust system to burn off accumulated diesel particulate matter or soot.
HMI Human Machine Interface
A device that provides a control and visualisation interface between a human
and a process or machine.
IDMT Inverse Definite Minimum Time
MSC Multi-Set Communication
OC Occurrence Count
A part of DTC that indicates the number of times that failure has occurred.
PGN Parameter Group Number
A CAN address for a set of parameters that relate to the same topic and share
the same transmission rate.
PLC Programmable Logic Controller
A programmable digital device used to create logic for a specific purpose.
SCADA Supervisory Control And Data Acquisition
A system that operates with coded signals over communication channels to
provide control and monitoring of remote equipment
SCR Selective Catalytic Reduction
A process that uses DEF with the aid of a catalyst to convert nitric oxide and
nitrogen dioxide into nitrogen and water to reduce engine exhaust emission.
SIM Subscriber Identity Module.
The small card supplied by the GSM/CDMA provider that is inserted into the cell
phone, GSM modem or DSEGateway device to give GSM/GPRS connection.
SMS Short Message Service
The text messaging service of mobile/cell phones.
SPN Suspect Parameter Number
A part of DTC that indicates what the failure is, e.g. oil pressure, coolant
temperature, turbo pressure etc.
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