Cummis Calterm is used to modify parameter calibration by programming ECM and diagnostics for electronic control modules

Calterm is used to improve the productivity of engineers developing electronic engine functions by providing diagnostic, simulation, and value processing capabilities for electronic control modules (ECMs).
Calterm is an engineering development tool that monitors the electronic control modules of Cummins engine systems and changes the calibration data contained therein. Calterm can be used to calibrate parameters and function Settings in engineering development and test environments, such as modifying calibration, speed limiting, adjusting fuel injection, adjusting post-processing and other functions.
Calterm is by far the highest level of Cummins engineer software, with Calterm, you can monitor and modify any parameters, read/write calibration, do data recording and other work, do not need other software or Cummins authorization.